{"type": "FeatureCollection", "features": [{"id": "10.1016/j.envint.2019.05.061", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:15:28Z", "type": "Journal Article", "created": "2019-06-14", "title": "Monitoring the impact of desert dust outbreaks for air quality for health studies", "description": "We review the major features of desert dust outbreaks that are relevant to the assessment of dust impacts upon human health. Our ultimate goal is to provide scientific guidance for the acquisition of relevant population exposure information for epidemiological studies tackling the short and long term health effects of desert dust. We first describe the source regions and the typical levels of dust particles in regions close and far away from the source areas, along with their size, composition, and bio-aerosol load. We then describe the processes by which dust may become mixed with anthropogenic particulate matter (PM) and/or alter its load in receptor areas. Short term health effects are found during desert dust episodes in different regions of the world, but in a number of cases the results differ when it comes to associate the effects to the bulk PM, the desert dust-PM, or non-desert dust-PM. These differences are likely due to the different monitoring strategies applied in the epidemiological studies, and to the differences on atmospheric and emission (natural and anthropogenic) patterns of desert dust around the world. We finally propose methods to allow the discrimination of health effects by PM fraction during dust outbreaks, and a strategy to implement desert dust alert and monitoring systems for health studies and air quality management.", "keywords": ["Aerosols", "Air Movements", "Epidemiological studies", "Air Pollutants", "Pols mineral -- Tesis doctorals", "Epidemiology", ":Energies [\u00c0rees tem\u00e0tiques de la UPC]", "Atmospheric particulate matter", "Dust", "15. Life on land", "Mineral dust", "01 natural sciences", "Article", "3. Good health", "Environmental sciences", "13. Climate action", "\u00c0rees tem\u00e0tiques de la UPC::Energies", "Air Pollution", "11. Sustainability", "GE1-350", "Desert dust", "Dust control", "Environmental Monitoring", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envint.2019.05.061"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environment%20International", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envint.2019.05.061", "name": "item", "description": "10.1016/j.envint.2019.05.061", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envint.2019.05.061"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-09-01T00:00:00Z"}}, {"id": "10.1016/j.rse.2023.113986", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:15:57Z", "type": "Journal Article", "created": "2024-01-21", "title": "On-orbit calibration and performance of the EMIT imaging spectrometer", "description": "Open AccessArticle signat per 56 autors: David R. Thompson, Robert O. Green, Christine Bradley, Philip G. Brodrick, Natalie Mahowald, Eyal Ben Dor, Matthew Bennett, Michael Bernas, Nimrod Carmon, K. Dana Chadwick, Roger N. Clark, Red Willow Coleman, Evan Cox, Ernesto Diaz, Michael L. Eastwood, Regina Eckert, Bethany L. Ehlmann, Paul Ginoux, Mar\u00eda Gon\u00e7alves Ageitos, Kathleen Grant, Luis Guanter, Daniela Heller Pearlshtien, Mark Helmlinger, Harrison Herzog, Todd Hoefen, Yue Huang, Abigail Keebler, Olga Kalashnikova, Didier Keymeulen, Raymond Kokaly, Martina Klose, Longlei Li, Sarah R. Lundeen, John Meyer, Elizabeth Middleton, Ron L. Miller, Pantazis Mouroulis, Bogdan Oaida, Vincenzo Obiso, Francisco Ochoa, Winston Olson-Duvall, Gregory S. Okin, Thomas H. Painter, Carlos P\u00e9rez Garc\u00eda-Pando, Randy Pollock, Vincent Realmuto, Lucas Shaw, Peter Sullivan, Gregg Swayze, Erik Thingvold, Andrew K. Thorpe, Suresh Vannan, Catalina Villarreal, Charlene Ung, Daniel W. Wilson, Sander Zandbergen.", "keywords": ["Mineral dusts", "Teledetecci\u00f3", "550", "Radiative forcing", "7. Clean energy", "Validation", "\u00c0rees tem\u00e0tiques de la UPC::F\u00edsica::Astronomia i astrof\u00edsica", "Spectrometer--Calibration", "Pols minerals", "Visible-shortwave infrared spectroscopy", "info:eu-repo/classification/ddc/550", "ddc:550", "International space station", "Remote sensing", "Mineralogy", "Espect\u00f2metres--Calibratge", "Imaging spectroscopy", "EMIT", "Earth sciences", "Atmospheric correction", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria de la telecomunicaci\u00f3::Radiocomunicaci\u00f3 i exploraci\u00f3 electromagn\u00e8tica::Teledetecci\u00f3", "13. Climate action", "Hyperspectral imagery", "Calibration", "Mineral dust cycle", "NASA"]}, "links": [{"href": "https://doi.org/10.1016/j.rse.2023.113986"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Remote%20Sensing%20of%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.rse.2023.113986", "name": "item", "description": "10.1016/j.rse.2023.113986", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.rse.2023.113986"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-03-01T00:00:00Z"}}, {"id": "10.1038/s43247-024-01441-4", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:16:51Z", "type": "Journal Article", "created": "2024-06-04", "title": "Improved constraints on hematite refractive index for estimating climatic effects of dust aerosols", "description": "Abstract<p>Uncertainty in desert dust composition poses a big challenge to understanding Earth\uffe2\uff80\uff99s climate across different epochs. Of particular concern is hematite, an iron-oxide mineral dominating the solar absorption by dust particles, for which current estimates of absorption capacity vary by over two orders of magnitude. Here, we show that laboratory measurements of dust composition, absorption, and scattering provide valuable constraints on the absorption potential of hematite, substantially narrowing its range of plausible values. The success of this constraint is supported by results from an atmospheric transport model compared with station-based measurements. Additionally, we identify substantial bias in simulating hematite abundance in dust aerosols with current soil mineralogy descriptions, underscoring the necessity for improved data sources. Encouragingly, the next-generation imaging spectroscopy remote sensing data hold promise for capturing the spatial variability of hematite. These insights have implications for enhancing dust modeling, thus contributing to efforts in climate change mitigation and adaptation.</p", "keywords": ["Aerosols", "Mineral dusts", "QE1-996.5", "\u00c0rees tem\u00e0tiques de la UPC::Desenvolupament hum\u00e0 i sostenible::Degradaci\u00f3 ambiental::Canvi clim\u00e0tic", "550", "500", "Geology", "Climatic changes", "15. Life on land", "01 natural sciences", "Environmental sciences", "[SDE.MCG] Environmental Sciences/Global Changes", "13. Climate action", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria civil::Geologia::Mineralogia", "GE1-350", "Pols minerals", "Canvis clim\u00e0tics", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://www.nature.com/articles/s43247-024-01441-4.pdf"}, {"href": "https://doi.org/10.1038/s43247-024-01441-4"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Communications%20Earth%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/s43247-024-01441-4", "name": "item", "description": "10.1038/s43247-024-01441-4", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/s43247-024-01441-4"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-06-04T00:00:00Z"}}, {"id": "10.1109/aero55745.2023.10115851", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:17:22Z", "type": "Journal Article", "created": "2023-05-15", "title": "Performance and Early Results from the Earth Surface Mineral Dust Source Investigation (EMIT) Imaging Spectroscopy Mission", "description": "RestrictedThe authors gratefully acknowledge all the elements of the National Aeronautics and Space Administration, our partners, and the science community who have contributed to the development of the EMIT mission. EMIT is supported by the National Aeronautics and Space Administration Earth Venture Instrument Program under the Earth Science Division of the Science Mission Directorate. This research was performed at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.", "keywords": ["Mineral dusts", "550", "500", "15. Life on land", "7. Clean energy", "Spectrometer", "3. Good health", "Earth (Planet)--Surface", "Espect\u00f2metres", "13. Climate action", "Terra (Planeta)--Superf\u00edcie", "11. Sustainability", "\u00c0rees tem\u00e0tiques de la UPC::F\u00edsica::Astronomia i astrof\u00edsica", "14. Life underwater", "Pols minerals"]}, "links": [{"href": "http://xplorestaging.ieee.org/ielx7/10115529/10115530/10115851.pdf?arnumber=10115851"}, {"href": "https://doi.org/10.1109/aero55745.2023.10115851"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2023%20IEEE%20Aerospace%20Conference", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1109/aero55745.2023.10115851", "name": "item", "description": "10.1109/aero55745.2023.10115851", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1109/aero55745.2023.10115851"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-03-04T00:00:00Z"}}, {"id": "10.1175/bams-d-23-0005.1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:17:56Z", "type": "Journal Article", "created": "2023-08-23", "title": "Observing Mineral Dust in Northern Africa, the Middle East, and Europe: Current Capabilities and Challenges ahead for the Development of Dust Services", "description": "Abstract <p>Mineral dust produced by wind erosion of arid and semiarid surfaces is a major component of atmospheric aerosol that affects climate, weather, ecosystems, and socioeconomic sectors such as human health, transportation, solar energy, and air quality. Understanding these effects and ultimately improving the resilience of affected countries requires a reliable, dense, and diverse set of dust observations, fundamental for the development and the provision of skillful dust-forecast-tailored products. The last decade has seen a notable improvement of dust observational capabilities in terms of considered parameters, geographical coverage, and delivery times, as well as of tailored products of interest to both the scientific community and the various end-users. Given this progress, here we review the current state of observational capabilities, including in situ, ground-based, and satellite remote sensing observations in northern Africa, the Middle East, and Europe for the provision of dust information considering the needs of various users. We also critically discuss observational gaps and related unresolved questions while providing suggestions for overcoming the current limitations. Our review aims to be a milestone for discussing dust observational gaps at a global level to address the needs of users, from research communities to nonscientific stakeholders.</p", "keywords": ["[SDE] Environmental Sciences", "Mineral dusts", "Dust services", "550", "103039 Aerosol physics", "105208 Atmospheric chemistry", "Mineral dust", "Earth system -- environmental sciences", "[SDU] Sciences of the Universe [physics]", "Middle East", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria agroaliment\u00e0ria::Ci\u00e8ncies de la terra i de la vida::Climatologia i meteorologia", "SDG 3 - Good Health and Well-being", "Simulaci\u00f3 per ordinador", "11. Sustainability", "SDG 13 - Climate Action", "Northern Africa", "103039 Aerosolphysik", "observation capabilities", "current capabilities and challenges", "mineral dust", "info:eu-repo/classification/ddc/550", "Earth radiation", "ddc:550", "health", "15. Life on land", "Remote sensing", "Atmospheric aerosols", "Aerosols/ particulates; In situ atmospheric observations; Remote sensing; Air quality and health", "105208 Atmosph\u00e4renchemie", "Europe", "Earth sciences", "13. Climate action", "103037 Environmental physics", "SDG 3 \u2013 Gesundheit und Wohlergehen", "SDG 13 \u2013 Ma\u00dfnahmen zum Klimaschutz", "In situ atmospheric observations", "Air quality", "dust service", "Aerosols/ particulates", "Dust observation", "Satellite remote sensing observations", "103037 Umweltphysik", "Atmospheric aerosol"]}, "links": [{"href": "https://iris.cnr.it/bitstream/20.500.14243/452880/1/prod_491741-doc_205111.pdf"}, {"href": "https://www.iris.unisa.it/bitstream/11386/4857971/1/bams-BAMS-D-23-0005.1-2.pdf"}, {"href": "https://journals.ametsoc.org/downloadpdf/journals/bams/104/12/BAMS-D-23-0005.1.xml"}, {"href": "https://doi.org/10.1175/bams-d-23-0005.1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Bulletin%20of%20the%20American%20Meteorological%20Society", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1175/bams-d-23-0005.1", "name": "item", "description": "10.1175/bams-d-23-0005.1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1175/bams-d-23-0005.1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-12-01T00:00:00Z"}}, {"id": "2117/354852", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:21Z", "type": "Journal Article", "created": "2021-10-25", "title": "Mineral dust cycle in the Multiscale Online Nonhydrostatic AtmospheRe CHemistry model (MONARCH) Version 2.0", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. We present the dust module in the Multiscale Online Non-hydrostatic AtmospheRe CHemistry model (MONARCH) version 2.0, a chemical weather prediction system that can be used for regional and global modeling at a range of resolutions. The representations of dust processes in MONARCH were upgraded with a focus on dust emission (emission parameterizations, entrainment thresholds, considerations of soil moisture and surface cover), lower boundary conditions (roughness, potential dust sources), and dust\u2013radiation interactions. MONARCH now allows modeling of global and regional mineral dust cycles using fundamentally different paradigms, ranging from strongly simplified to physics-based parameterizations. We present a detailed description of these updates along with four global benchmark simulations, which use conceptually different dust emission parameterizations, and we evaluate the simulations against observations of dust optical depth. We determine key dust parameters, such as global annual emission/deposition flux, dust loading, dust optical depth, mass-extinction efficiency, single-scattering albedo, and direct radiative effects. For dust-particle diameters up to 20\u2009\u00b5m, the total annual dust emission and deposition fluxes obtained with our four experiments range between about 3500 and 6000\u2009Tg, which largely depend upon differences in the emitted size distribution. Considering ellipsoidal particle shapes and dust refractive indices that account for size-resolved mineralogy, we estimate the global total (longwave and shortwave) dust direct radiative effect (DRE) at the surface to range between about \u22120.90 and \u22120.63\u2009W\u2009m\u22122 and at the top of the atmosphere between \u22120.20 and \u22120.28\u2009W\u2009m\u22122. Our evaluation demonstrates that MONARCH is able to reproduce key features of the spatiotemporal variability of the global dust cycle with important and insightful differences between the different configurations.</p></article>", "keywords": ["Mineral dusts", "Previsi\u00f3 del temps", "QE1-996.5", "info:eu-repo/classification/ddc/550", "550", "ddc:550", "Geology", "15. Life on land", "01 natural sciences", ":Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica [\u00c0rees tem\u00e0tiques de la UPC]", "Weather forecasting", "Climate Action", "[SDU] Sciences of the Universe [physics]", "Earth sciences", "[SDU]Sciences of the Universe [physics]", "13. Climate action", "Earth Sciences", "Pols", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://gmd.copernicus.org/articles/14/6403/2021/gmd-14-6403-2021.pdf"}, {"href": "https://escholarship.org/content/qt2r39x8b5/qt2r39x8b5.pdf"}, {"href": "https://doi.org/2117/354852"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoscientific%20Model%20Development", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2117/354852", "name": "item", "description": "2117/354852", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2117/354852"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-04-01T00:00:00Z"}}, {"id": "10.5194/acp-22-3553-2022", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:19:35Z", "type": "Journal Article", "created": "2022-03-17", "title": "Quantification of the dust optical depth across spatiotemporal scales with the MIDAS global dataset (2003\u20132017)", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Quantifying the dust optical depth (DOD) and its uncertainty across spatiotemporal scales is key to understanding and constraining the dust cycle and its interactions with the Earth System. This study quantifies the DOD along with its monthly and year-to-year variability between 2003 and 2017 at global and regional levels based on the MIDAS (ModIs Dust AeroSol) dataset, which combines Moderate Resolution Imaging Spectroradiometer (MODIS)-Aqua retrievals and Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA-2), reanalysis products. We also describe the annual and seasonal geographical distributions of DOD across the main dust source regions and transport pathways. MIDAS provides columnar mid-visible (550\u2009nm) DOD at fine spatial resolution (0.1\u2218\u00d70.1\u2218), expanding the current observational capabilities for monitoring the highly variable spatiotemporal features of the dust burden. We obtain a global DOD of 0.032\u00b10.003 \u2013 approximately a quarter (23.4\u2009%\u00b12.4\u2009%) of the global aerosol optical depth (AOD) \u2013 with about 1\u00a0order of magnitude more DOD in the Northern Hemisphere (0.056\u00b10.004; 31.8\u2009%\u00b12.7\u2009%) than in the Southern Hemisphere (0.008\u00b10.001; 8.2\u2009%\u00b11.1\u2009%) and about 3.5 times more DOD over land (0.070\u00b10.005) than over ocean (0.019\u00b10.002). The Northern Hemisphere monthly DOD is highly correlated with the corresponding monthly AOD (R2=0.94) and contributes 20\u2009% to 48\u2009% of it, both indicating a dominant dust contribution. In contrast, the contribution of dust to the monthly AOD does not exceed 17\u2009% in the Southern Hemisphere, although the uncertainty in this region is larger. Among the major dust sources of the planet, the maximum DODs (\u223c1.2) are recorded in the Bod\u00e9l\u00e9 Depression of the northern Lake Chad Basin, whereas moderate-to-high intensities are encountered in the Western Sahara (boreal summer), along the eastern parts of the Middle East (boreal summer) and in the Taklamakan Desert (spring). Over oceans, major long-range dust transport is observed primarily along the tropical Atlantic (intensified during boreal summer) and secondarily in the North Pacific (intensified during boreal spring). Our calculated global and regional averages and associated uncertainties are consistent with some but not all recent observation-based studies. Our work provides a simple yet flexible method to estimate consistent uncertainties across spatiotemporal scales, which will enhance the use of the MIDAS dataset in a variety of future studies.                     </p></article>", "keywords": ["Mineral dusts", ":Enginyeria agroaliment\u00e0ria::Ci\u00e8ncies de la terra i de la vida::Climatologia i meteorologia [\u00c0rees tem\u00e0tiques de la UPC]", "Physics", "QC1-999", "MIDAS global dataset", "16. Peace & justice", "01 natural sciences", "Atmospheric Sciences", "Climate Action", "Chemistry", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria agroaliment\u00e0ria::Ci\u00e8ncies de la terra i de la vida::Climatologia i meteorologia", "13. Climate action", "Mineral dust particles", "Simulaci\u00f3 per ordinador", "Pols", "Meteorology & Atmospheric Sciences", "Datasets", "Dust optical depth (DOD)", "Earth System", "QD1-999", "Astronomical and Space Sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://acp.copernicus.org/articles/22/3553/2022/acp-22-3553-2022.pdf"}, {"href": "https://escholarship.org/content/qt9v38c6qs/qt9v38c6qs.pdf"}, {"href": "https://doi.org/10.5194/acp-22-3553-2022"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/acp-22-3553-2022", "name": "item", "description": "10.5194/acp-22-3553-2022", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/acp-22-3553-2022"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-07-19T00:00:00Z"}}, {"id": "10.5194/acp-22-535-2022", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:19:35Z", "type": "Journal Article", "created": "2022-01-14", "title": "Assimilating spaceborne lidar dust extinction can improve dust forecasts", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Atmospheric mineral dust has a rich tri-dimensional spatial and temporal structure that is poorly constrained in forecasts and analyses when only column-integrated aerosol optical depth (AOD) is assimilated. At present, this is the case of most operational global aerosol assimilation products. Aerosol vertical distributions obtained from spaceborne lidars can be assimilated in aerosol models, but questions about the extent of their benefit upon analyses and forecasts along with their consistency with AOD assimilation remain unresolved. Our study thoroughly explores the added value of assimilating spaceborne vertical dust profiles, with and without the joint assimilation of dust optical depth (DOD). We also discuss the consistency in the assimilation of both sources of information and analyse the role of the smaller footprint of the spaceborne lidar profiles in the results. To that end, we have performed data assimilation experiments using dedicated dust observations for a period of 2 months over northern Africa, the Middle East, and Europe. We assimilate DOD derived from the Visible Infrared Imaging Radiometer Suite (VIIRS) on board Suomi National Polar-Orbiting Partnership (SUOMI-NPP) Deep Blue and for the first time Cloud-Aerosol Lidar with Orthogonal Polarisation (CALIOP)-based LIdar climatology of Vertical Aerosol Structure for space-based lidar simulation studies (LIVAS) pure-dust extinction coefficient profiles on an aerosol model. The evaluation is performed against independent ground-based DOD derived from AErosol RObotic NETwork (AERONET) Sun photometers and ground-based lidar dust extinction profiles from the Cyprus Clouds Aerosol and Rain Experiment (CyCARE) and PREparatory: does dust TriboElectrification affect our ClimaTe (Pre-TECT) field campaigns. Jointly assimilating LIVAS and Deep Blue data reduces the root mean square error (RMSE) in the DOD by 39\u2009% and in the dust extinction coefficient by 65\u2009% compared to a control simulation that excludes assimilation. We show that the assimilation of dust extinction coefficient profiles provides a strong added value to the analyses and forecasts. When only Deep Blue data are assimilated, the RMSE in the DOD is reduced further, by 42\u2009%. However, when only LIVAS data are assimilated, the RMSE in the dust extinction coefficient decreases by 72\u2009%, the largest improvement across experiments. We also show that the assimilation of dust extinction profiles yields better skill scores than the assimilation of DOD under an equivalent sensor footprint. Our results demonstrate the strong potential of future lidar space missions to improve desert dust forecasts, particularly if they foresee a depolarization lidar channel to allow discrimination of desert dust from other aerosol types.                     </p></article>", "keywords": ["Mineral dusts", "info:eu-repo/classification/ddc/550", "550", "ddc:550", "9. Industry and infrastructure", "Physics", "QC1-999", "Optical radar", "Aerosols atmosf\u00e8rics", "Atmospheric aerosols", "Radar \u00f2ptic", "01 natural sciences", ":Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica [\u00c0rees tem\u00e0tiques de la UPC]", "Earth sciences", "Chemistry", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria de la telecomunicaci\u00f3::Radiocomunicaci\u00f3 i exploraci\u00f3 electromagn\u00e8tica::Teledetecci\u00f3", ":Enginyeria de la telecomunicaci\u00f3::Radiocomunicaci\u00f3 i exploraci\u00f3 electromagn\u00e8tica::Teledetecci\u00f3 [\u00c0rees tem\u00e0tiques de la UPC]", "13. Climate action", "Pols", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica", "QD1-999", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://acp.copernicus.org/articles/22/535/2022/acp-22-535-2022.pdf"}, {"href": "https://doi.org/10.5194/acp-22-535-2022"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/acp-22-535-2022", "name": "item", "description": "10.5194/acp-22-535-2022", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/acp-22-535-2022"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-01-14T00:00:00Z"}}, {"id": "10.5194/acp-23-15815-2023", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:19:35Z", "type": "Journal Article", "created": "2023-12-22", "title": "Variability in sediment particle size, mineralogy, and Fe mode of occurrence across dust-source inland drainage basins: the case of the lower Dr\u00e2a Valley, Morocco", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. The effects of desert dust upon climate and ecosystems depend strongly on its particle size and size-resolved mineralogical composition. However, there is very limited quantitative knowledge on the particle size and composition of the parent sediments along with their variability within dust-source regions, particularly in dust emission hotspots. The lower Dr\u00e2a Valley, an inland drainage basin and dust hotspot region located in the Moroccan Sahara, was chosen for a comprehensive analysis of sediment particle size and mineralogy. Different sediment type samples (n=\u200942) were collected, including paleo-sediments, paved surfaces, crusts, and dunes, and analysed for particle-size distribution (minimally and fully dispersed samples) and mineralogy. Furthermore, Fe sequential wet extraction was carried out to characterise the modes of occurrence of Fe, including Fe in Fe (oxyhydr)oxides, mainly from goethite and hematite, which are key to dust radiative effects; the poorly crystalline pool of Fe (readily exchangeable ionic Fe and Fe in nano-Fe oxides), relevant to dust impacts upon ocean biogeochemistry; and structural Fe. Results yield a conceptual model where both particle size and mineralogy are segregated by transport and deposition of sediments during runoff of water across the basin and by the precipitation of salts, which causes a sedimentary fractionation. The proportion of coarser particles enriched in quartz is higher in the highlands, while that of finer particles rich in clay, carbonates, and Fe oxides is higher in the lowland dust emission hotspots. There, when water ponds and evaporates, secondary carbonates and salts precipitate, and the clays are enriched in readily exchangeable ionic Fe, due to sorption of dissolved Fe by illite. The results differ from currently available mineralogical atlases and highlight the need for observationally constrained global high-resolution mineralogical data for mineral-speciated dust modelling. The dataset obtained represents an important resource for future evaluation of surface mineralogy retrievals from spaceborne spectroscopy.                     </p></article>", "keywords": ["Mineral dusts", "geology", "550", "QC1-999", "Climate", "01 natural sciences", "\u00c0rees tem\u00e0tiques de la UPC::Desenvolupament hum\u00e0 i sostenible::Enginyeria ambiental", "Pols minerals", "QD1-999", "Sahara", "0105 earth and related environmental sciences", "mineral dust", "S\u00e0hara", "info:eu-repo/classification/ddc/550", "ddc:550", "Physics", "Aire--Contaminaci\u00f3", "15. Life on land", "info:eu-repo/classification/udc/502.3/.7", "6. Clean water", "Earth sciences", "Chemistry", "13. Climate action", "Air--Pollution", "Desert dust", "aerosols"]}, "links": [{"href": "https://acp.copernicus.org/articles/23/15815/2023/acp-23-15815-2023.pdf"}, {"href": "https://doi.org/10.5194/acp-23-15815-2023"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/acp-23-15815-2023", "name": "item", "description": "10.5194/acp-23-15815-2023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/acp-23-15815-2023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-12-22T00:00:00Z"}}, {"id": "10.5194/gmd-14-6403-2021", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:19:43Z", "type": "Journal Article", "created": "2021-10-25", "title": "Mineral dust cycle in the Multiscale Online Nonhydrostatic AtmospheRe CHemistry model (MONARCH) Version 2.0", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. We present the dust module in the Multiscale Online Non-hydrostatic AtmospheRe CHemistry model (MONARCH) version 2.0, a chemical weather prediction system that can be used for regional and global modeling at a range of resolutions. The representations of dust processes in MONARCH were upgraded with a focus on dust emission (emission parameterizations, entrainment thresholds, considerations of soil moisture and surface cover), lower boundary conditions (roughness, potential dust sources), and dust\u2013radiation interactions. MONARCH now allows modeling of global and regional mineral dust cycles using fundamentally different paradigms, ranging from strongly simplified to physics-based parameterizations. We present a detailed description of these updates along with four global benchmark simulations, which use conceptually different dust emission parameterizations, and we evaluate the simulations against observations of dust optical depth. We determine key dust parameters, such as global annual emission/deposition flux, dust loading, dust optical depth, mass-extinction efficiency, single-scattering albedo, and direct radiative effects. For dust-particle diameters up to 20\u2009\u00b5m, the total annual dust emission and deposition fluxes obtained with our four experiments range between about 3500 and 6000\u2009Tg, which largely depend upon differences in the emitted size distribution. Considering ellipsoidal particle shapes and dust refractive indices that account for size-resolved mineralogy, we estimate the global total (longwave and shortwave) dust direct radiative effect (DRE) at the surface to range between about \u22120.90 and \u22120.63\u2009W\u2009m\u22122 and at the top of the atmosphere between \u22120.20 and \u22120.28\u2009W\u2009m\u22122. Our evaluation demonstrates that MONARCH is able to reproduce key features of the spatiotemporal variability of the global dust cycle with important and insightful differences between the different configurations.                     </p></article>", "keywords": ["Mineral dusts", "Previsi\u00f3 del temps", "QE1-996.5", "info:eu-repo/classification/ddc/550", "550", "ddc:550", "Geology", "15. Life on land", "01 natural sciences", ":Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica [\u00c0rees tem\u00e0tiques de la UPC]", "Weather forecasting", "Climate Action", "[SDU] Sciences of the Universe [physics]", "Earth sciences", "[SDU]Sciences of the Universe [physics]", "13. Climate action", "Earth Sciences", "Pols", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://gmd.copernicus.org/articles/14/6403/2021/gmd-14-6403-2021.pdf"}, {"href": "https://escholarship.org/content/qt2r39x8b5/qt2r39x8b5.pdf"}, {"href": "https://doi.org/10.5194/gmd-14-6403-2021"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoscientific%20Model%20Development", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/gmd-14-6403-2021", "name": "item", "description": "10.5194/gmd-14-6403-2021", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/gmd-14-6403-2021"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-04-01T00:00:00Z"}}, {"id": "10.5194/acp-23-7177-2023", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:19:35Z", "type": "Journal Article", "created": "2023-06-29", "title": "Insights into the size-resolved dust emission from field measurements in the Moroccan Sahara", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. The particle size distribution (PSD) of mineral dust has a strong effect on the impacts of dust on climate. However, our understanding of the emitted dust PSD, including its variability and the fraction of super-coarse dust (diameter &gt;10\u2009\u00b5m), remains limited. Here, we provide new insights into the size-resolved dust emission process based on a field campaign performed in the Moroccan Sahara in September\u00a02019 in the context of the FRontiers in dust minerAloGical coMposition and its Effects upoN climaTe (FRAGMENT) project. The obtained dust concentration and diffusive flux PSDs show significant dependencies upon the friction velocity (u*), wind direction and type of event (regular events versus haboob events). For instance, the number fraction of sub-micrometre particles increases with u*, along with a large decrease in the mass fraction of super-coarse dust. We identify dry deposition, which is modulated by u* and fetch length, as a potential cause for this PSD variability. Using a resistance model constrained with field observations to estimate the dry deposition flux and thereby also the emitted dust flux, we show that deposition could represent up to \u223c90\u2009% of the emission of super-coarse particles (&gt;10\u2009\u00b5m) and up to \u223c65\u2009% of the emission of particles as small as \u223c5\u2009\u00b5m in diameter. Importantly, removing the deposition component significantly reduces the variability with u* in the PSD of the emitted dust flux compared with the diffusive flux, particularly for super-coarse dust. The differences between regular and haboob event concentration and diffusive flux PSDs are suspected to result from a smaller and variable dust source fetch during the haboob events, and/or an increased resistance of soil aggregates to fragmentation associated with the observed increase in relative humidity along the haboob outflow. Finally, compared to the invariant emitted dust flux PSD estimated based on brittle fragmentation theory, we obtain a substantially higher proportion of super-micrometre particles in the dust flux. Overall, our results suggest that dry deposition needs to be adequately considered to estimate the emitted PSD, even in studies limited to the fine and coarse size ranges (&lt;10\u2009\u00b5m).                     </p></article>", "keywords": ["mineral dust", "Take urgent action to combat climate change and its impacts", "info:eu-repo/classification/ddc/550", "550", "ddc:550", "aerosol particles", "Physics", "QC1-999", "Pollution", "520", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "Particle size distribution (PSD)", "Dust emission", "Atmospheric mineral dust", "Earth sciences", "Chemistry", "emission processes", "13. Climate action", "info:eu-repo/classification/udc/53", "http://metadata.un.org/sdg/13", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "environment", "climate", "QD1-999"]}, "links": [{"href": "https://acp.copernicus.org/articles/23/7177/2023/acp-23-7177-2023.pdf"}, {"href": "https://hal.inrae.fr/hal-04158514/file/2023_Gonz%C3%A1lez-Fl%C3%B3rez.pdf"}, {"href": "https://doi.org/10.5194/acp-23-7177-2023"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/acp-23-7177-2023", "name": "item", "description": "10.5194/acp-23-7177-2023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/acp-23-7177-2023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-12-05T00:00:00Z"}}, {"id": "10.5194/acp-24-5337-2024", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:19:35Z", "type": "Journal Article", "created": "2024-05-07", "title": "Observationally constrained regional variations of shortwave absorption by iron oxides emphasize the cooling effect of dust", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. The composition of soil dust aerosols derives from the mineral abundances in the parent soils that vary across dust source regions. Nonetheless, Earth system models (ESMs) have traditionally represented mineral dust as a globally homogeneous species. The growing interest in modeling dust mineralogy, facilitated by the recognized sensitivity of the dust climate impacts to composition, has motivated state-of-the-art ESMs to incorporate the mineral speciation of dust along with its effect upon the dust direct radiative effect (DRE). In this work, we enable the NASA Goddard Institute for Space Studies ModelE2.1 to calculate the shortwave (SW) DRE accounting for the regionally varying soil mineralogy. Mineral\u2013radiation interaction at solar wavelengths is calculated according to two alternative coupling schemes: (1)\u00a0external mixing of three mineral components that are optically distinguished, one of which contains embedded iron oxides; (2)\u00a0a single internal mixture of all dust minerals with a dynamic fraction of iron oxides that varies regionally and temporally. We link dust absorption to the fractional mass of iron oxides based on recent chamber measurements using natural dust aerosol samples. We show that coupled mineralogy overall enhances the scattering by dust, and thus the global cooling, compared to our control run with globally uniform composition. According to the external mixing scheme, the SW DRE at the top of atmosphere (TOA) changes from \u22120.25 to -0.30Wm-2, corresponding to a change in the net DRE, including the longwave effect, from \u22120.08 to -0.12Wm-2. The cooling increase is accentuated when the internal mixing scheme is configured: the SW DRE at the TOA becomes -0.34Wm-2 with a net DRE of -0.15Wm-2. The varying composition modifies the regional distribution of single scattering albedo (SSA), whose variations in specific regions can be remarkable (above 0.03) and significantly modify the regional SW DRE. Evaluation against the AErosol RObotic NETwork (AERONET) shows that explicit representation of soil mineralogy and its regional variations reduces the low bias of model dust SSA while improving the range of variability across stations and calendar months. Despite these improvements, the moderate spatiotemporal correlation with AERONET reveals remaining modeling challenges and the need for more accurate measurements of mineral fractions in soils.                     </p></article>", "keywords": ["[SDE] Environmental Sciences", "Mineral dusts", "Radiation", "Physics", "QC1-999", "Cicle hidrol\u00f2gic", "15. Life on land", "Aerosols atmosf\u00e8rics", "01 natural sciences", "Radiaci\u00f3", "Chemistry", "13. Climate action", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria civil::Geologia::Mineralogia", "Pols minerals", "QD1-999", "Atmospheric aerosol", "\u00c0rees tem\u00e0tiques de la UPC::Desenvolupament hum\u00e0 i sostenible::Degradaci\u00f3 ambiental", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://acp.copernicus.org/articles/24/5337/2024/acp-24-5337-2024.pdf"}, {"href": "https://doi.org/10.5194/acp-24-5337-2024"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/acp-24-5337-2024", "name": "item", "description": "10.5194/acp-24-5337-2024", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/acp-24-5337-2024"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-06-05T00:00:00Z"}}, {"id": "10.5194/acp-24-7421-2024", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:19:35Z", "type": "Journal Article", "created": "2024-06-28", "title": "Modeling impacts of dust mineralogy on fast climate response", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Mineralogical composition drives dust impacts on Earth's climate systems. However, most climate models still use homogeneous dust, without accounting for the temporal and spatial variation in mineralogy. To quantify the radiative impact of resolving dust mineralogy on Earth's climate, we implement and simulate the distribution of dust minerals (i.e., illite, kaolinite, smectite, hematite, calcite, feldspar, quartz, and gypsum) from Claquin et\u00a0al. (1999) (C1999) and activate their interaction with radiation in the GFDL AM4.0 model. Resolving mineralogy reduces dust absorption compared to the homogeneous dust used in the standard GFDL AM4.0 model that assumes a globally uniform hematite volume content of 2.7\u2009% (HD27). The reduction in dust absorption results in improved agreement with observation-based single-scattering albedo (SSA), radiative fluxes from CERES (the Clouds and the Earth's Radiant Energy System), and land surface temperature from the CRU (Climatic Research Unit) compared to the baseline HD27 model version. It also results in distinct radiative impacts on Earth's climate over North Africa. Over the 19-year (from 2001 to 2019) modeled period during JJA (June\u2013July\u2013August), the reduction in dust absorption in AM4.0 leads to a reduction of over 50\u2009% in net downward radiation across the Sahara and approximately 20\u2009% over the Sahel at the top of the atmosphere (TOA) compared to the baseline HD27 model version. The reduced dust absorption weakens the atmospheric warming effect of dust aerosols and leads to an alteration in land surface temperature, resulting in a decrease of 0.66\u2009K over the Sahara and an increase of 0.7\u2009K over the Sahel. The less warming in the atmosphere suppresses ascent and weakens the monsoon inflow from the Gulf of Guinea. This brings less moisture to the Sahel, which combined with decreased ascent induces a reduction of precipitation. To isolate the effect of reduced absorption compared to resolving spatial and temporal mineralogy, we carry out a simulation where the hematite volume content of homogeneous dust is reduced from 2.7\u2009% to 0.9\u2009% (HD09). The dust absorption (e.g., single-scattering albedo) of HD09 is comparable to that of the mineralogically speciated model on a global mean scale, albeit with a lower spatial variation that arises solely from particle size. Comparison of the two\u00a0models indicates that the spatial inhomogeneity in dust absorption resulting from resolving mineralogy does not have significant impacts on Earth's radiation and climate, provided there is a similar level of dust absorption on a global mean scale before and after resolving dust mineralogy. However, uncertainties related to emission and distribution of minerals may blur the advantages of resolving minerals to study their impact on radiation, cloud properties, ocean biogeochemistry, air quality, and photochemistry. On the other hand, lumping together clay minerals (i.e., illite, kaolinite, and smectite), but excluding externally mixed hematite and gypsum, appears to provide both computational efficiency and relative accuracy. Nevertheless, for specific research, it may be necessary to fully resolve mineralogy to achieve accuracy.                     </p></article>", "keywords": ["Mineral dusts", "Climatology", "Physics", "QC1-999", "\u00c0rees tem\u00e0tiques de la UPC::F\u00edsica", "15. Life on land", "01 natural sciences", "Chemistry", "13. Climate action", "Climatologia", "Radiative transfer", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria civil::Geologia::Mineralogia", "Pols minerals", "QD1-999", "Transfer\u00e8ncia radiativa", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://acp.copernicus.org/articles/24/7421/2024/acp-24-7421-2024.pdf"}, {"href": "https://doi.org/10.5194/acp-24-7421-2024"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/acp-24-7421-2024", "name": "item", "description": "10.5194/acp-24-7421-2024", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/acp-24-7421-2024"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-06-28T00:00:00Z"}}, {"id": "10.31223/x5qd36", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:18:53Z", "type": "Journal Article", "created": "2022-08-31", "title": "A review of coarse mineral dust in the Earth system", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Mineral dust particles suspended in the atmosphere span more than three orders of magnitude in diameter, from less than 0.1 \u00b5m to more than 100 \u00b5m. This wide size range makes dust a unique aerosol species with the ability to interact with many aspects of the Earth system, including radiation, clouds, hydrology, atmospheric chemistry, and biogeochemistry. This review focuses on coarse and super-coarse dust aerosols, which we respectively define as dust particles with a diameter between 2.5 - 10 \u00b5m and 10 - 62.5 \u00b5m. We review several lines of observational evidence indicating that coarse and super-coarse dust particles are transported farther than previously expected and that the abundance of these particles is substantially underestimated in current global models. We synthesize previous studies that used observations, theories, and model simulations to highlight the impacts of coarse and super-coarse dust aerosols on the Earth system, including their effects on dust-radiation interactions, dust-cloud interactions, and atmospheric chemistry, and biogeochemistry. In addition, we examine several limitations in the representation of coarse and super-coarse dust aerosols in current model simulations and in remote-sensing retrievals. Because these limitations substantially contribute to the uncertainties in simulating the abundance and impacts of coarse and super-coarse dust aerosols, we offer some recommendations to facilitate future studies. Overall, we conclude that an accurate representation of coarse and super-coarse properties is critical in understanding the overall impacts of dust aerosols on the Earth system.</p></article>", "keywords": ["[SDU.OCEAN]Sciences of the Universe [physics]/Ocean", "info:eu-repo/classification/ddc/550", "550", "ddc:550", "Atmosphere", "[SDU.OCEAN] Sciences of the Universe [physics]/Ocean", " Atmosphere", "Climate", "Size distribution", "Mineral dust", "01 natural sciences", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "Atmospheric Sciences", "Coarse dust", "Climate Action", "Environmental sciences", "Earth sciences", "13. Climate action", "Earth Sciences", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "environment", "Earth system", "Environmental Sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://escholarship.org/content/qt9cp497d5/qt9cp497d5.pdf"}, {"href": "https://doi.org/10.31223/x5qd36"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Aeolian%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.31223/x5qd36", "name": "item", "description": "10.31223/x5qd36", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.31223/x5qd36"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-09-02T00:00:00Z"}}, {"id": "10.5194/acp-20-55-2020", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:19:34Z", "type": "Journal Article", "created": "2020-01-03", "title": "Retrieving the global distribution of the threshold of wind erosion from satellite data and implementing it into the Geophysical Fluid Dynamics Laboratory land\u2013atmosphere model (GFDL AM4.0/LM4.0)", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Dust emission is initiated when surface wind velocities exceed the threshold of wind erosion. Many dust models used constant threshold values globally. Here we use satellite products to characterize the frequency of dust events and land surface properties. By matching this frequency derived from Moderate Resolution Imaging Spectroradiometer (MODIS) Deep Blue aerosol products with surface winds, we are able to retrieve a climatological monthly global distribution of the wind erosion threshold (Vthreshold) over dry and sparsely vegetated surfaces. This monthly two-dimensional threshold velocity is then implemented into the Geophysical Fluid Dynamics Laboratory coupled land\u2013atmosphere model (AM4.0/LM4.0). It is found that the climatology of dust optical depth (DOD) and total aerosol optical depth, surface PM10 dust concentrations, and the seasonal cycle of DOD are better captured over the \u201cdust belt\u201d (i.e., northern Africa and the Middle East) by simulations with the new wind erosion threshold than those using the default globally constant threshold. The most significant improvement is the frequency distribution of dust events, which is generally ignored in model evaluation. By using monthly rather than annual mean Vthreshold, all comparisons with observations are further improved. The monthly global threshold of wind erosion can be retrieved under different spatial resolutions to match the resolution of dust models and thus can help improve the simulations of dust climatology and seasonal cycles as well as dust forecasting.                     </p></article>", "keywords": ["[SDE] Environmental Sciences", "Climatology", "Mineral dusts", ":Desenvolupament hum\u00e0 i sostenible::Medi ambient [\u00c0rees tem\u00e0tiques de la UPC]", "550", "Erosi\u00f3 e\u00f2lica", "Physics", "QC1-999", "01 natural sciences", "Dust emission", "\u00c0rees tem\u00e0tiques de la UPC::Desenvolupament hum\u00e0 i sostenible::Medi ambient", "Chemistry", "Pols -- Control", "MODIS (Spectroradiometer)", "13. Climate action", "Climatologia", "Wind erosion", "Dust optical depth (DOD)", "QD1-999", "Dust control", "Geophysical Fluid Dynamics", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://acp.copernicus.org/articles/20/55/2020/acp-20-55-2020.pdf"}, {"href": "https://www.atmos-chem-phys.net/20/55/2020/acp-20-55-2020-supplement.pdf"}, {"href": "https://doi.org/10.5194/acp-20-55-2020"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/acp-20-55-2020", "name": "item", "description": "10.5194/acp-20-55-2020", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/acp-20-55-2020"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-01-03T00:00:00Z"}}, {"id": "10.5194/egusphere-2022-1414", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:19:38Z", "type": "Journal Article", "created": "2023-02-20", "title": "Modeling dust mineralogical composition: sensitivity to soil mineralogy atlases and their expected climate impacts", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Soil dust aerosols are a key component of the climate system, as they interact with short- and long-wave radiation, alter cloud formation processes, affect atmospheric chemistry and play a role in biogeochemical cycles by providing nutrient inputs such as iron and phosphorus. The influence of dust on these processes depends on its physico-chemical properties, which far from being homogeneous, are shaped by its regionally varying mineral composition. The relative amount of minerals in dust depends on the source region and shows a large geographical variability. However, many state-of-the-art Earth System Models (ESMs), upon which climate analyses and projections rely, still consider dust mineralogy as invariant. The explicit representation of minerals in ESMs is more hindered by our limited knowledge of the global soil composition along with the resulting size-resolved airborne mineralogy than by computational constraints. In this work, we introduce an explicit mineralogy representation within the state-of-the-art atmosphere-chemistry model MONARCH. We review and compare two existing soil mineralogy datasets, which remain a source of uncertainty for dust mineralogy modelling, and provide an evaluation of multi-annual simulations against available mineralogy observations. Soil mineralogy datasets are based on measurements performed after wet sieving, which breaks the aggregates found in the parent soil. Our model predicts the emitted particle size distribution (PSD) in terms of its constituent minerals based on Brittle Fragmentation Theory (BFT), which reconstructs the emitted mineral aggregates destroyed by wet sieving. Our simulations broadly reproduce the most abundant mineral fractions, independently of the soil composition data used. Feldspars and calcite are highly sensitive to the soil mineralogy map, mainly due to the different assumptions made in each soil dataset to extrapolate a handful of soil measurements to arid and semiarid regions worldwide. For the least abundant or more difficult to determine minerals, such as the iron oxides, uncertainties in soil mineralogy yield differences in annual mean aerosol mass fractions of up to \u223c100 %. Although BFT restores coarse aggregates including phyllosilicates that usually break during soil analysis, we still identify an overestimation of coarse quartz mass fractions (above 2 \u00b5m in diameter). In a dedicated experiment, we estimate the fraction of dust with undetermined composition as given by a soil map, which makes a \u223c10 % of the emitted dust mass at the global scale, and can be regionally larger. Changes in the underlying soil mineralogy impact our estimates of climate-relevant variables, particularly affecting the regional variability of the single scattering albedo at solar wavelengths, or the total iron deposited over oceans. All in all, this assessment represents a baseline for future model experiments including new mineralogical maps constrained by high quality spaceborne hyperspectral measurements, such as those arising from the NASA EMIT mission.                         </p></article>", "keywords": ["Mineral dusts", "[SDU.OCEAN]Sciences of the Universe [physics]/Ocean", "info:eu-repo/classification/ddc/550", "550", "Atmosphere", "ddc:550", "[SDU.OCEAN] Sciences of the Universe [physics]/Ocean", " Atmosphere", "Physics", "QC1-999", "Climatologia -- Models matem\u00e0tics", "Aerosols atmosf\u00e8rics", "15. Life on land", "Atmospheric aerosols", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "Climatology -- Mathematical models", "\u00c0rees tem\u00e0tiques de la UPC::Desenvolupament hum\u00e0 i sostenible::Enginyeria ambiental", "Earth sciences", "Chemistry", "13. Climate action", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "Pols minerals", "environment", "QD1-999"]}, "links": [{"href": "https://acp.copernicus.org/articles/23/8623/2023/acp-23-8623-2023.pdf"}, {"href": "https://doi.org/10.5194/egusphere-2022-1414"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/egusphere-2022-1414", "name": "item", "description": "10.5194/egusphere-2022-1414", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/egusphere-2022-1414"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-02-20T00:00:00Z"}}, {"id": "10.5194/acp-2022-742", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:19:34Z", "type": "Journal Article", "created": "2022-11-07", "title": "Insights into the single particle composition, size, mixing state and aspect ratio of freshly emitted mineral dust from field measurements in the Moroccan Sahara using electron microscopy", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. The chemical and morphological properties of mineral dust aerosols emitted by wind erosion from arid and semi-arid regions influence climate, ocean and land ecosystems, air quality, and multiple socio-economic sectors. However, there is an incomplete understanding of the emitted dust particle size distribution (PSD) in terms of its constituent minerals that typically result from the fragmentation of soil aggregates during wind erosion. The emitted dust PSD affects the duration of particle transport and thus each mineral\u2019s global distribution, along with its specific effect upon climate. This lack of understanding is largely due to the scarcity of relevant in situ measurements in dust sources. To advance our understanding of the physicochemical properties of the emitted dust PSD, we present insights into the elemental composition and morphology of individual dust particles collected during the FRontiers in dust minerAloGical coMposition and its Effects upoN climaTe (FRAGMENT) field campaign in the Moroccan Sahara in September 2019. We analyzed more than 300,000 freshly emitted individual particles by performing offline analysis in the laboratory using Scanning Electron Microscopy (SEM) coupled with Energy-Dispersive X-ray Spectrometry (EDX). Eight major particle-type classes were identified where clay minerals make up the majority of the analyzed particles by number, with carbonates and quartz contributing to a lesser extent. We provide an exhaustive analysis of the size distribution and potential mixing state of different particle types, focusing largely on iron-rich (Fe-oxi/hydroxides) and feldspar particles, which are key to the effects of dust upon radiation and clouds. Nearly pure or externally mixed Fe-oxi/hydroxides are present only in diameters smaller than 2 \u00b5m and mainly below 1 \u00b5m. Fe-oxi/hydroxides tend to be increasingly internally mixed with other minerals, especially clays, as particle size increases, i.e., the volume fraction of Fe-oxi/hydroxides in aggregates decreases with particle size. Pure (externally-mixed) feldspar grains represented 3.7 % of all the particles, of which we estimated about a quarter to be K-feldspar. The externally-mixed total feldspar and K-feldspar abundances are relatively invariant with particle size, in contrast to the increasing abundance of feldspar-like (internally-mixed) aggregates with particle size. We also found that overall the median aspect ratio is rather constant across particle size and mineral groups, although we obtain slightly higher aspect ratios for internally-mixed particles. The detailed information on the composition of freshly emitted individual dust particles along with the quantitative analysis of their mixing state presented here can be used to constrain climate models including mineral species in their representation of the dust cycle.                         </p></article>", "keywords": ["Atmospheric chemistry", "550", "QC1-999", "http://metadata.un.org/sdg/3", "Mineral dust", "01 natural sciences", "Climate models", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria agroaliment\u00e0ria::Ci\u00e8ncies de la terra i de la vida::Climatologia i meteorologia", "Aerosols Measurement", "Pols minerals", "QD1-999", "Ensure healthy lives and promote well-being for all at all ages", "0105 earth and related environmental sciences", "mineral dust", "info:eu-repo/classification/ddc/550", "electron microscopy", "ddc:550", "Physics", "15. Life on land", "info:eu-repo/classification/udc/502.3/.7", "Pollution", "Moroccan Sahara", "Earth sciences", "Chemistry", "13. Climate action", "Mineral dust particles", "Air quality", "Desert dust"]}, "links": [{"href": "https://acp.copernicus.org/articles/23/3861/2023/acp-23-3861-2023.pdf"}, {"href": "https://acp.copernicus.org/articles/23/3861/2023/acp-23-3861-2023-supplement.pdf"}, {"href": "https://doi.org/10.5194/acp-2022-742"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/acp-2022-742", "name": "item", "description": "10.5194/acp-2022-742", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/acp-2022-742"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-11-07T00:00:00Z"}}, {"id": "10.5194/acp-21-3973-2021", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:19:35Z", "type": "Journal Article", "created": "2021-03-17", "title": "Quantifying the range of the dust direct radiative effect due to source mineralogy uncertainty", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. The large uncertainty in the mineral dust direct radiative effect (DRE) hinders projections of future climate change due to anthropogenic activity. Resolving modeled dust mineral speciation allows for spatially and temporally varying refractive indices consistent with dust aerosol composition. Here, for the first time, we quantify the range in dust DRE at the top of the atmosphere (TOA) due to current uncertainties in the surface soil mineralogical content using a dust mineral-resolving climate model. We propagate observed uncertainties in soil mineral abundances from two soil mineralogy atlases along with the optical properties of each mineral into the DRE and compare the resultant range with other sources of uncertainty across six climate models. The shortwave DRE responds region-specifically to the dust burden depending on the mineral speciation and underlying shortwave surface albedo: positively when the regionally averaged annual surface albedo is larger than 0.28 and negatively otherwise. Among all minerals examined, the shortwave TOA DRE and single scattering albedo at the 0.44\u20130.63\u2009\u00b5m band are most sensitive to the fractional contribution of iron oxides to the total dust composition. The global net (shortwave plus longwave) TOA DRE is estimated to be within \u22120.23 to +0.35\u2009W\u2009m\u22122. Approximately 97\u2009% of this range relates to uncertainty in the soil abundance of iron oxides. Representing iron oxide with solely hematite optical properties leads to an overestimation of shortwave DRE by +0.10\u2009W\u2009m\u22122 at the TOA, as goethite is not as absorbing as hematite in the shortwave spectrum range. Our study highlights the importance of iron oxides to the shortwave DRE: they have a disproportionally large impact on climate considering their small atmospheric mineral mass fractional burden (\u223c2\u2009%). An improved description of iron oxides, such as those planned in the Earth Surface Mineral Dust Source Investigation (EMIT), is thus essential for more accurate estimates of the dust DRE.                     </p></article>", "keywords": ["Mineral dusts", "Atmospheric sciences", "550", "QC1-999", "Iron oxides", "01 natural sciences", "Atmospheric Sciences", ":Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica [\u00c0rees tem\u00e0tiques de la UPC]", "[SDU] Sciences of the Universe [physics]", "\u00d2xids de ferro", "Pols", "Meteorology & Atmospheric Sciences", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica", "QD1-999", "0105 earth and related environmental sciences", "info:eu-repo/classification/ddc/550", "Climate change science", "ddc:550", "Physics", "Climatic changes", "15. Life on land", "Climate Action", "Earth sciences", "Chemistry", "[SDU]Sciences of the Universe [physics]", "13. Climate action", "Earth Sciences", "Astronomical and Space Sciences", "Canvis clim\u00e0tics"]}, "links": [{"href": "https://acp.copernicus.org/articles/21/3973/2021/acp-21-3973-2021.pdf"}, {"href": "https://escholarship.org/content/qt27c9p2v2/qt27c9p2v2.pdf"}, {"href": "https://doi.org/10.5194/acp-21-3973-2021"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/acp-21-3973-2021", "name": "item", "description": "10.5194/acp-21-3973-2021", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/acp-21-3973-2021"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-09-15T00:00:00Z"}}, {"id": "10.5281/zenodo.7649033", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:20:58Z", "type": "Dataset", "title": "Electron microscopy of particles collected by different techniques from field measurements in the Moroccan Sahara during FRAGMENT 2019", "description": "An intensive field campaign between 4-30 September 2019 was conducted at a major source region on the edge of the Saharan desert in Morocco (29.83 \u00b0N 5.87 \u00b0W) in the context of the FRontiers in dust minerAloGical coMposition and its Effects upoN climaTe (FRAGMENT) project. Samples were collected with three different sampling techniques, namely: flat-plate sampler (FPS), free-wing impactor (FWI), and a micro-orifice uniform deposit impactor (MOUDI). Substrates in the MOUDI and FWI were collected two times a day with a typical sampling duration of a few minutes to avoid overloading the substrate for individual particle analysis. For the flat-plate sampler, the average exposure time was half a day. Here we present dataset of the elemental composition and morphology of more than 300,000 freshly emitted individual particles by performing offline analysis in the laboratory using Scanning Electron Microscopy (SEM) coupled with Energy-Dispersive X-ray Spectrometry (EDX).", "keywords": ["13. Climate action", "SEM-EDX; single particle analysis; Mineral dust"]}, "links": [{"href": "https://doi.org/10.5281/zenodo.7649033"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.7649033", "name": "item", "description": "10.5281/zenodo.7649033", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.7649033"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-02-22T00:00:00Z"}}, {"id": "10.5281/zenodo.7649034", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:20:58Z", "type": "Dataset", "title": "Electron microscopy of particles collected by different techniques from field measurements in the Moroccan Sahara during FRAGMENT 2019", "description": "An intensive field campaign between 4-30 September 2019 was conducted at a major source region on the edge of the Saharan desert in Morocco (29.83 \u00b0N 5.87 \u00b0W) in the context of the FRontiers in dust minerAloGical coMposition and its Effects upoN climaTe (FRAGMENT) project. Samples were collected with three different sampling techniques, namely: flat-plate sampler (FPS), free-wing impactor (FWI), and a micro-orifice uniform deposit impactor (MOUDI). Substrates in the MOUDI and FWI were collected two times a day with a typical sampling duration of a few minutes to avoid overloading the substrate for individual particle analysis. For the flat-plate sampler, the average exposure time was half a day. Here we present dataset of the elemental composition and morphology of more than 300,000 freshly emitted individual particles by performing offline analysis in the laboratory using Scanning Electron Microscopy (SEM) coupled with Energy-Dispersive X-ray Spectrometry (EDX).", "keywords": ["13. Climate action", "SEM-EDX; single particle analysis; Mineral dust"]}, "links": [{"href": "https://doi.org/10.5281/zenodo.7649034"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.7649034", "name": "item", "description": "10.5281/zenodo.7649034", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.7649034"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-02-22T00:00:00Z"}}, {"id": "2117/407828", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:22Z", "type": "Journal Article", "created": "2024-05-07", "title": "Observationally constrained regional variations of shortwave absorption by iron oxides emphasize the cooling effect of dust", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. The composition of soil dust aerosols derives from the mineral abundances in the parent soils that vary across dust source regions. Nonetheless, Earth system models (ESMs) have traditionally represented mineral dust as a globally homogeneous species. The growing interest in modeling dust mineralogy, facilitated by the recognized sensitivity of the dust climate impacts to composition, has motivated state-of-the-art ESMs to incorporate the mineral speciation of dust along with its effect upon the dust direct radiative effect (DRE). In this work, we enable the NASA Goddard Institute for Space Studies ModelE2.1 to calculate the shortwave (SW) DRE accounting for the regionally varying soil mineralogy. Mineral\u2013radiation interaction at solar wavelengths is calculated according to two alternative coupling schemes: (1)\u00a0external mixing of three mineral components that are optically distinguished, one of which contains embedded iron oxides; (2)\u00a0a single internal mixture of all dust minerals with a dynamic fraction of iron oxides that varies regionally and temporally. We link dust absorption to the fractional mass of iron oxides based on recent chamber measurements using natural dust aerosol samples. We show that coupled mineralogy overall enhances the scattering by dust, and thus the global cooling, compared to our control run with globally uniform composition. According to the external mixing scheme, the SW DRE at the top of atmosphere (TOA) changes from \u22120.25 to -0.30Wm-2, corresponding to a change in the net DRE, including the longwave effect, from \u22120.08 to -0.12Wm-2. The cooling increase is accentuated when the internal mixing scheme is configured: the SW DRE at the TOA becomes -0.34Wm-2 with a net DRE of -0.15Wm-2. The varying composition modifies the regional distribution of single scattering albedo (SSA), whose variations in specific regions can be remarkable (above 0.03) and significantly modify the regional SW DRE. Evaluation against the AErosol RObotic NETwork (AERONET) shows that explicit representation of soil mineralogy and its regional variations reduces the low bias of model dust SSA while improving the range of variability across stations and calendar months. Despite these improvements, the moderate spatiotemporal correlation with AERONET reveals remaining modeling challenges and the need for more accurate measurements of mineral fractions in soils.</p></article>", "keywords": ["[SDE] Environmental Sciences", "Mineral dusts", "Radiation", "Physics", "QC1-999", "Cicle hidrol\u00f2gic", "15. Life on land", "Aerosols atmosf\u00e8rics", "01 natural sciences", "Radiaci\u00f3", "Chemistry", "13. Climate action", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria civil::Geologia::Mineralogia", "Pols minerals", "QD1-999", "Atmospheric aerosol", "\u00c0rees tem\u00e0tiques de la UPC::Desenvolupament hum\u00e0 i sostenible::Degradaci\u00f3 ambiental", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://acp.copernicus.org/articles/24/5337/2024/acp-24-5337-2024.pdf"}, {"href": "https://doi.org/2117/407828"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2117/407828", "name": "item", "description": "2117/407828", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2117/407828"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-06-05T00:00:00Z"}}, {"id": "3084540378", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:44Z", "type": "Journal Article", "created": "2021-03-17", "title": "Quantifying the range of the dust direct radiative effect due to source mineralogy uncertainty", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. The large uncertainty in the mineral dust direct radiative effect (DRE) hinders projections of future climate change due to anthropogenic activity. Resolving modeled dust mineral speciation allows for spatially and temporally varying refractive indices consistent with dust aerosol composition. Here, for the first time, we quantify the range in dust DRE at the top of the atmosphere (TOA) due to current uncertainties in the surface soil mineralogical content using a dust mineral-resolving climate model. We propagate observed uncertainties in soil mineral abundances from two soil mineralogy atlases along with the optical properties of each mineral into the DRE and compare the resultant range with other sources of uncertainty across six climate models. The shortwave DRE responds region-specifically to the dust burden depending on the mineral speciation and underlying shortwave surface albedo: positively when the regionally averaged annual surface albedo is larger than 0.28 and negatively otherwise. Among all minerals examined, the shortwave TOA DRE and single scattering albedo at the 0.44\u20130.63\u2009\u00b5m band are most sensitive to the fractional contribution of iron oxides to the total dust composition. The global net (shortwave plus longwave) TOA DRE is estimated to be within \u22120.23 to +0.35\u2009W\u2009m\u22122. Approximately 97\u2009% of this range relates to uncertainty in the soil abundance of iron oxides. Representing iron oxide with solely hematite optical properties leads to an overestimation of shortwave DRE by +0.10\u2009W\u2009m\u22122 at the TOA, as goethite is not as absorbing as hematite in the shortwave spectrum range. Our study highlights the importance of iron oxides to the shortwave DRE: they have a disproportionally large impact on climate considering their small atmospheric mineral mass fractional burden (\u223c2\u2009%). An improved description of iron oxides, such as those planned in the Earth Surface Mineral Dust Source Investigation (EMIT), is thus essential for more accurate estimates of the dust DRE.                     </p></article>", "keywords": ["Mineral dusts", "Atmospheric sciences", "550", "QC1-999", "Iron oxides", "01 natural sciences", "Atmospheric Sciences", ":Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica [\u00c0rees tem\u00e0tiques de la UPC]", "[SDU] Sciences of the Universe [physics]", "\u00d2xids de ferro", "Pols", "Meteorology & Atmospheric Sciences", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica", "QD1-999", "0105 earth and related environmental sciences", "info:eu-repo/classification/ddc/550", "Climate change science", "ddc:550", "Physics", "Climatic changes", "15. Life on land", "Climate Action", "Earth sciences", "Chemistry", "[SDU]Sciences of the Universe [physics]", "13. Climate action", "Earth Sciences", "Astronomical and Space Sciences", "Canvis clim\u00e0tics"]}, "links": [{"href": "https://acp.copernicus.org/articles/21/3973/2021/acp-21-3973-2021.pdf"}, {"href": "https://escholarship.org/content/qt27c9p2v2/qt27c9p2v2.pdf"}, {"href": "https://doi.org/3084540378"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "3084540378", "name": "item", "description": "3084540378", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/3084540378"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-09-15T00:00:00Z"}}, {"id": "2117/410005", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:22Z", "type": "Journal Article", "created": "2024-06-04", "title": "Improved constraints on hematite refractive index for estimating climatic effects of dust aerosols", "description": "Abstract<p>Uncertainty in desert dust composition poses a big challenge to understanding Earth\uffe2\uff80\uff99s climate across different epochs. Of particular concern is hematite, an iron-oxide mineral dominating the solar absorption by dust particles, for which current estimates of absorption capacity vary by over two orders of magnitude. Here, we show that laboratory measurements of dust composition, absorption, and scattering provide valuable constraints on the absorption potential of hematite, substantially narrowing its range of plausible values. The success of this constraint is supported by results from an atmospheric transport model compared with station-based measurements. Additionally, we identify substantial bias in simulating hematite abundance in dust aerosols with current soil mineralogy descriptions, underscoring the necessity for improved data sources. Encouragingly, the next-generation imaging spectroscopy remote sensing data hold promise for capturing the spatial variability of hematite. These insights have implications for enhancing dust modeling, thus contributing to efforts in climate change mitigation and adaptation.</p", "keywords": ["Aerosols", "Mineral dusts", "QE1-996.5", "\u00c0rees tem\u00e0tiques de la UPC::Desenvolupament hum\u00e0 i sostenible::Degradaci\u00f3 ambiental::Canvi clim\u00e0tic", "550", "500", "Geology", "Climatic changes", "15. Life on land", "01 natural sciences", "Environmental sciences", "[SDE.MCG] Environmental Sciences/Global Changes", "13. Climate action", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria civil::Geologia::Mineralogia", "GE1-350", "Pols minerals", "Canvis clim\u00e0tics", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://www.nature.com/articles/s43247-024-01441-4.pdf"}, {"href": "https://doi.org/2117/410005"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Communications%20Earth%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2117/410005", "name": "item", "description": "2117/410005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2117/410005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-06-04T00:00:00Z"}}, {"id": "2117/411014", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:22Z", "type": "Journal Article", "created": "2024-06-28", "title": "Modeling impacts of dust mineralogy on fast climate response", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Mineralogical composition drives dust impacts on Earth's climate systems. However, most climate models still use homogeneous dust, without accounting for the temporal and spatial variation in mineralogy. To quantify the radiative impact of resolving dust mineralogy on Earth's climate, we implement and simulate the distribution of dust minerals (i.e., illite, kaolinite, smectite, hematite, calcite, feldspar, quartz, and gypsum) from Claquin et\u00a0al. (1999) (C1999) and activate their interaction with radiation in the GFDL AM4.0 model. Resolving mineralogy reduces dust absorption compared to the homogeneous dust used in the standard GFDL AM4.0 model that assumes a globally uniform hematite volume content of 2.7\u2009% (HD27). The reduction in dust absorption results in improved agreement with observation-based single-scattering albedo (SSA), radiative fluxes from CERES (the Clouds and the Earth's Radiant Energy System), and land surface temperature from the CRU (Climatic Research Unit) compared to the baseline HD27 model version. It also results in distinct radiative impacts on Earth's climate over North Africa. Over the 19-year (from 2001 to 2019) modeled period during JJA (June\u2013July\u2013August), the reduction in dust absorption in AM4.0 leads to a reduction of over 50\u2009% in net downward radiation across the Sahara and approximately 20\u2009% over the Sahel at the top of the atmosphere (TOA) compared to the baseline HD27 model version. The reduced dust absorption weakens the atmospheric warming effect of dust aerosols and leads to an alteration in land surface temperature, resulting in a decrease of 0.66\u2009K over the Sahara and an increase of 0.7\u2009K over the Sahel. The less warming in the atmosphere suppresses ascent and weakens the monsoon inflow from the Gulf of Guinea. This brings less moisture to the Sahel, which combined with decreased ascent induces a reduction of precipitation. To isolate the effect of reduced absorption compared to resolving spatial and temporal mineralogy, we carry out a simulation where the hematite volume content of homogeneous dust is reduced from 2.7\u2009% to 0.9\u2009% (HD09). The dust absorption (e.g., single-scattering albedo) of HD09 is comparable to that of the mineralogically speciated model on a global mean scale, albeit with a lower spatial variation that arises solely from particle size. Comparison of the two\u00a0models indicates that the spatial inhomogeneity in dust absorption resulting from resolving mineralogy does not have significant impacts on Earth's radiation and climate, provided there is a similar level of dust absorption on a global mean scale before and after resolving dust mineralogy. However, uncertainties related to emission and distribution of minerals may blur the advantages of resolving minerals to study their impact on radiation, cloud properties, ocean biogeochemistry, air quality, and photochemistry. On the other hand, lumping together clay minerals (i.e., illite, kaolinite, and smectite), but excluding externally mixed hematite and gypsum, appears to provide both computational efficiency and relative accuracy. Nevertheless, for specific research, it may be necessary to fully resolve mineralogy to achieve accuracy.</p></article>", "keywords": ["Mineral dusts", "Climatology", "Physics", "QC1-999", "\u00c0rees tem\u00e0tiques de la UPC::F\u00edsica", "15. Life on land", "01 natural sciences", "Chemistry", "13. Climate action", "Climatologia", "Radiative transfer", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria civil::Geologia::Mineralogia", "Pols minerals", "QD1-999", "Transfer\u00e8ncia radiativa", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://acp.copernicus.org/articles/24/7421/2024/acp-24-7421-2024.pdf"}, {"href": "https://doi.org/2117/411014"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2117/411014", "name": "item", "description": "2117/411014", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2117/411014"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-06-28T00:00:00Z"}}, {"id": "10261/199689", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:21:39Z", "type": "Journal Article", "created": "2019-06-14", "title": "Monitoring the impact of desert dust outbreaks for air quality for health studies", "description": "We review the major features of desert dust outbreaks that are relevant to the assessment of dust impacts upon human health. Our ultimate goal is to provide scientific guidance for the acquisition of relevant population exposure information for epidemiological studies tackling the short and long term health effects of desert dust. We first describe the source regions and the typical levels of dust particles in regions close and far away from the source areas, along with their size, composition, and bio-aerosol load. We then describe the processes by which dust may become mixed with anthropogenic particulate matter (PM) and/or alter its load in receptor areas. Short term health effects are found during desert dust episodes in different regions of the world, but in a number of cases the results differ when it comes to associate the effects to the bulk PM, the desert dust-PM, or non-desert dust-PM. These differences are likely due to the different monitoring strategies applied in the epidemiological studies, and to the differences on atmospheric and emission (natural and anthropogenic) patterns of desert dust around the world. We finally propose methods to allow the discrimination of health effects by PM fraction during dust outbreaks, and a strategy to implement desert dust alert and monitoring systems for health studies and air quality management.", "keywords": ["Aerosols", "Air Movements", "Epidemiological studies", "Air Pollutants", "Pols mineral -- Tesis doctorals", "Epidemiology", ":Energies [\u00c0rees tem\u00e0tiques de la UPC]", "Atmospheric particulate matter", "Dust", "15. Life on land", "Mineral dust", "01 natural sciences", "Article", "3. Good health", "Environmental sciences", "13. Climate action", "\u00c0rees tem\u00e0tiques de la UPC::Energies", "Air Pollution", "11. Sustainability", "GE1-350", "Desert dust", "Dust control", "Environmental Monitoring", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10261/199689"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environment%20International", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10261/199689", "name": "item", "description": "10261/199689", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10261/199689"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-09-01T00:00:00Z"}}, {"id": "11386/4857971", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:21:55Z", "type": "Journal Article", "created": "2023-08-23", "title": "Observing Mineral Dust in Northern Africa, the Middle East, and Europe: Current Capabilities and Challenges ahead for the Development of Dust Services", "description": "Abstract <p>Mineral dust produced by wind erosion of arid and semiarid surfaces is a major component of atmospheric aerosol that affects climate, weather, ecosystems, and socioeconomic sectors such as human health, transportation, solar energy, and air quality. Understanding these effects and ultimately improving the resilience of affected countries requires a reliable, dense, and diverse set of dust observations, fundamental for the development and the provision of skillful dust-forecast-tailored products. The last decade has seen a notable improvement of dust observational capabilities in terms of considered parameters, geographical coverage, and delivery times, as well as of tailored products of interest to both the scientific community and the various end-users. Given this progress, here we review the current state of observational capabilities, including in situ, ground-based, and satellite remote sensing observations in northern Africa, the Middle East, and Europe for the provision of dust information considering the needs of various users. We also critically discuss observational gaps and related unresolved questions while providing suggestions for overcoming the current limitations. Our review aims to be a milestone for discussing dust observational gaps at a global level to address the needs of users, from research communities to nonscientific stakeholders.</p", "keywords": ["[SDE] Environmental Sciences", "Mineral dusts", "Dust services", "550", "103039 Aerosol physics", "105208 Atmospheric chemistry", "Mineral dust", "Earth system -- environmental sciences", "[SDU] Sciences of the Universe [physics]", "Middle East", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria agroaliment\u00e0ria::Ci\u00e8ncies de la terra i de la vida::Climatologia i meteorologia", "SDG 3 - Good Health and Well-being", "Simulaci\u00f3 per ordinador", "11. Sustainability", "SDG 13 - Climate Action", "Northern Africa", "103039 Aerosolphysik", "observation capabilities", "current capabilities and challenges", "mineral dust", "info:eu-repo/classification/ddc/550", "Earth radiation", "ddc:550", "health", "15. Life on land", "Remote sensing", "Atmospheric aerosols", "Aerosols/ particulates; In situ atmospheric observations; Remote sensing; Air quality and health", "105208 Atmosph\u00e4renchemie", "Europe", "Earth sciences", "13. Climate action", "103037 Environmental physics", "SDG 3 \u2013 Gesundheit und Wohlergehen", "SDG 13 \u2013 Ma\u00dfnahmen zum Klimaschutz", "In situ atmospheric observations", "Air quality", "dust service", "Aerosols/ particulates", "Dust observation", "Satellite remote sensing observations", "103037 Umweltphysik", "Atmospheric aerosol"]}, "links": [{"href": "https://iris.cnr.it/bitstream/20.500.14243/452880/1/prod_491741-doc_205111.pdf"}, {"href": "https://www.iris.unisa.it/bitstream/11386/4857971/1/bams-BAMS-D-23-0005.1-2.pdf"}, {"href": "https://journals.ametsoc.org/downloadpdf/journals/bams/104/12/BAMS-D-23-0005.1.xml"}, {"href": "https://doi.org/11386/4857971"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Bulletin%20of%20the%20American%20Meteorological%20Society", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "11386/4857971", "name": "item", "description": "11386/4857971", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/11386/4857971"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-12-01T00:00:00Z"}}, {"id": "11250/3119077", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:21:54Z", "type": "Journal Article", "created": "2022-08-31", "title": "A review of coarse mineral dust in the Earth system", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Mineral dust particles suspended in the atmosphere span more than three orders of magnitude in diameter, from less than 0.1 \u00b5m to more than 100 \u00b5m. This wide size range makes dust a unique aerosol species with the ability to interact with many aspects of the Earth system, including radiation, clouds, hydrology, atmospheric chemistry, and biogeochemistry. This review focuses on coarse and super-coarse dust aerosols, which we respectively define as dust particles with a diameter between 2.5 - 10 \u00b5m and 10 - 62.5 \u00b5m. We review several lines of observational evidence indicating that coarse and super-coarse dust particles are transported farther than previously expected and that the abundance of these particles is substantially underestimated in current global models. We synthesize previous studies that used observations, theories, and model simulations to highlight the impacts of coarse and super-coarse dust aerosols on the Earth system, including their effects on dust-radiation interactions, dust-cloud interactions, and atmospheric chemistry, and biogeochemistry. In addition, we examine several limitations in the representation of coarse and super-coarse dust aerosols in current model simulations and in remote-sensing retrievals. Because these limitations substantially contribute to the uncertainties in simulating the abundance and impacts of coarse and super-coarse dust aerosols, we offer some recommendations to facilitate future studies. Overall, we conclude that an accurate representation of coarse and super-coarse properties is critical in understanding the overall impacts of dust aerosols on the Earth system.</p></article>", "keywords": ["550", "Climate", "3701 Atmospheric Sciences (for-2020)", "Mineral dust", "01 natural sciences", "Atmospheric Sciences", "04 Earth Sciences (for)", "Earth system", "0105 earth and related environmental sciences", "[SDU.OCEAN]Sciences of the Universe [physics]/Ocean", "37 Earth sciences (for-2020)", "info:eu-repo/classification/ddc/550", "ddc:550", "Atmosphere", "[SDU.OCEAN] Sciences of the Universe [physics]/Ocean", " Atmosphere", "Size distribution", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "Coarse dust", "Climate Action", "Earth sciences", "37 Earth Sciences (for-2020)", "41 Environmental sciences (for-2020)", "13. Climate action", "Earth Sciences", "13 Climate Action (sdg)", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "environment", "Environmental Sciences", "05 Environmental Sciences (for)"]}, "links": [{"href": "https://escholarship.org/content/qt9cp497d5/qt9cp497d5.pdf"}, {"href": "https://doi.org/11250/3119077"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Aeolian%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "11250/3119077", "name": "item", "description": "11250/3119077", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/11250/3119077"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-09-02T00:00:00Z"}}, {"id": "20.500.12556/RUNG-8602-01e09528-4a45-37fd-e7b0-cc4730d2a681", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:16Z", "type": "Journal Article", "created": "2023-06-29", "title": "Insights into the size-resolved dust emission from field measurements in the Moroccan Sahara", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. The particle size distribution (PSD) of mineral dust has a strong effect on the impacts of dust on climate. However, our understanding of the emitted dust PSD, including its variability and the fraction of super-coarse dust (diameter &gt;10\u2009\u00b5m), remains limited. Here, we provide new insights into the size-resolved dust emission process based on a field campaign performed in the Moroccan Sahara in September\u00a02019 in the context of the FRontiers in dust minerAloGical coMposition and its Effects upoN climaTe (FRAGMENT) project. The obtained dust concentration and diffusive flux PSDs show significant dependencies upon the friction velocity (u*), wind direction and type of event (regular events versus haboob events). For instance, the number fraction of sub-micrometre particles increases with u*, along with a large decrease in the mass fraction of super-coarse dust. We identify dry deposition, which is modulated by u* and fetch length, as a potential cause for this PSD variability. Using a resistance model constrained with field observations to estimate the dry deposition flux and thereby also the emitted dust flux, we show that deposition could represent up to \u223c90\u2009% of the emission of super-coarse particles (&gt;10\u2009\u00b5m) and up to \u223c65\u2009% of the emission of particles as small as \u223c5\u2009\u00b5m in diameter. Importantly, removing the deposition component significantly reduces the variability with u* in the PSD of the emitted dust flux compared with the diffusive flux, particularly for super-coarse dust. The differences between regular and haboob event concentration and diffusive flux PSDs are suspected to result from a smaller and variable dust source fetch during the haboob events, and/or an increased resistance of soil aggregates to fragmentation associated with the observed increase in relative humidity along the haboob outflow. Finally, compared to the invariant emitted dust flux PSD estimated based on brittle fragmentation theory, we obtain a substantially higher proportion of super-micrometre particles in the dust flux. Overall, our results suggest that dry deposition needs to be adequately considered to estimate the emitted PSD, even in studies limited to the fine and coarse size ranges (&lt;10\u2009\u00b5m).</p></article>", "keywords": ["mineral dust", "Take urgent action to combat climate change and its impacts", "info:eu-repo/classification/ddc/550", "550", "ddc:550", "aerosol particles", "Physics", "QC1-999", "Pollution", "520", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "Particle size distribution (PSD)", "Dust emission", "Atmospheric mineral dust", "Earth sciences", "Chemistry", "emission processes", "13. Climate action", "info:eu-repo/classification/udc/53", "http://metadata.un.org/sdg/13", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "environment", "climate", "QD1-999"]}, "links": [{"href": "https://acp.copernicus.org/articles/23/7177/2023/acp-23-7177-2023.pdf"}, {"href": "https://hal.inrae.fr/hal-04158514/file/2023_Gonz%C3%A1lez-Fl%C3%B3rez.pdf"}, {"href": "https://doi.org/20.500.12556/RUNG-8602-01e09528-4a45-37fd-e7b0-cc4730d2a681"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "20.500.12556/RUNG-8602-01e09528-4a45-37fd-e7b0-cc4730d2a681", "name": "item", "description": "20.500.12556/RUNG-8602-01e09528-4a45-37fd-e7b0-cc4730d2a681", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/20.500.12556/RUNG-8602-01e09528-4a45-37fd-e7b0-cc4730d2a681"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-12-05T00:00:00Z"}}, {"id": "1808/33524", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:03Z", "type": "Journal Article", "created": "2020-01-03", "title": "Retrieving the global distribution of the threshold of wind erosion from satellite data and implementing it into the Geophysical Fluid Dynamics Laboratory land\u2013atmosphere model (GFDL AM4.0/LM4.0)", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Dust emission is initiated when surface wind velocities exceed the threshold of wind erosion. Many dust models used constant threshold values globally. Here we use satellite products to characterize the frequency of dust events and land surface properties. By matching this frequency derived from Moderate Resolution Imaging Spectroradiometer (MODIS) Deep Blue aerosol products with surface winds, we are able to retrieve a climatological monthly global distribution of the wind erosion threshold (Vthreshold) over dry and sparsely vegetated surfaces. This monthly two-dimensional threshold velocity is then implemented into the Geophysical Fluid Dynamics Laboratory coupled land\u2013atmosphere model (AM4.0/LM4.0). It is found that the climatology of dust optical depth (DOD) and total aerosol optical depth, surface PM10 dust concentrations, and the seasonal cycle of DOD are better captured over the \u201cdust belt\u201d (i.e., northern Africa and the Middle East) by simulations with the new wind erosion threshold than those using the default globally constant threshold. The most significant improvement is the frequency distribution of dust events, which is generally ignored in model evaluation. By using monthly rather than annual mean Vthreshold, all comparisons with observations are further improved. The monthly global threshold of wind erosion can be retrieved under different spatial resolutions to match the resolution of dust models and thus can help improve the simulations of dust climatology and seasonal cycles as well as dust forecasting.</p></article>", "keywords": ["[SDE] Environmental Sciences", "Climatology", "Mineral dusts", ":Desenvolupament hum\u00e0 i sostenible::Medi ambient [\u00c0rees tem\u00e0tiques de la UPC]", "550", "Erosi\u00f3 e\u00f2lica", "Physics", "QC1-999", "01 natural sciences", "Dust emission", "\u00c0rees tem\u00e0tiques de la UPC::Desenvolupament hum\u00e0 i sostenible::Medi ambient", "Chemistry", "Pols -- Control", "MODIS (Spectroradiometer)", "13. Climate action", "Climatologia", "Wind erosion", "Dust optical depth (DOD)", "QD1-999", "Dust control", "Geophysical Fluid Dynamics", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://acp.copernicus.org/articles/20/55/2020/acp-20-55-2020.pdf"}, {"href": "https://www.atmos-chem-phys.net/20/55/2020/acp-20-55-2020-supplement.pdf"}, {"href": "https://doi.org/1808/33524"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "1808/33524", "name": "item", "description": "1808/33524", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/1808/33524"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-01-03T00:00:00Z"}}, {"id": "1871.1/1a541189-532b-4490-910f-dbbc173b6d29", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:05Z", "type": "Journal Article", "created": "2024-06-24", "title": "High-resolution sampling in the eastern tropical North Atlantic reveals episodic Saharan dust deposition: implications for the marine carbon sink", "description": "<p>In this study we present data collected between August 2017 and December 2018 from submarine sediment trap M1 located in the eastern tropical North Atlantic and determine lithogenic and biogenic fluxes, and grain-size distributions of aerosol dust. An unprecedented high sampling resolution of four days in combination with satellite imagery allowed the identification of thirteen major dust events of two types within the 468-day series. Seven dust events were classified as high-flux events identified by a deposition of &amp;gt;=25 mg m-2 d-1. The average dust deposition rate increased by 461.3% during these types of events. The remaining six events were characterized by a high composition of giant particles (&amp;gt;7.3 vol%). Seasonal variations of dust flux were recorded, with highest fluxes observed in spring at an average deposition rate of 14.8 mg m-2 d-1, and lowest fluxes in fall with an average rate of 8.6 mg m-2 d-1. The estimated total dust flux in the tropical North Atlantic was 4040.02 mg m-2 y-1. We suggest that most of the summer dust was likely transported over the sampling site at high altitudes while winter transport occurred closer to the sea surface, resulting in generally higher background fluxes. Grain-size distributions exhibited seasonal variations with increased occurrences of giant particles (&amp;gt;62.5 \uffce\uffbcm) in fall 2017 and spring, and less occurrences in winter and fall 2018. Grain-size sorting was high in spring and most variable in summer. Precipitation did not affect depositional fluxes or grain-size distributions of the aeolian dust significantly. Organic matter was deposited continuously at the sampling site with a deposition rate ranging from 14.4\uffe2\uff80\uff93862.25 mg m-2 d-1. Organic matter fluxes increased by 199.5% during high-flux dust events but decreased by 13.6% during anomalous grain-size events. Spring experienced the highest number of dust events (n=5). This unprecedented high-resolution dataset of dust deposition in marine sediment-traps enabled the distinction of dust events and their relation to organic matter flux. This suggests the possibility of a dust fertilization or mineral ballasting effect.</p", "keywords": ["Science", "Q", "General. Including nature conservation", " geographical distribution", "QH1-199.5", "15. Life on land", "mineral ballasting", "seasonal dust deposition", "Saharan dust events", "dust fertilization", "13. Climate action", "11. Sustainability", "14. Life underwater", "mineral dust flux", "marine carbon sink"]}, "links": [{"href": "https://doi.org/1871.1/1a541189-532b-4490-910f-dbbc173b6d29"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Frontiers%20in%20Marine%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "1871.1/1a541189-532b-4490-910f-dbbc173b6d29", "name": "item", "description": "1871.1/1a541189-532b-4490-910f-dbbc173b6d29", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/1871.1/1a541189-532b-4490-910f-dbbc173b6d29"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-06-24T00:00:00Z"}}, {"id": "20.500.12556/RUNG-8752", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:16Z", "type": "Journal Article", "created": "2023-12-22", "title": "Variability in sediment particle size, mineralogy, and Fe mode of occurrence across dust-source inland drainage basins: the case of the lower Dr\u00e2a Valley, Morocco", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. The effects of desert dust upon climate and ecosystems depend strongly on its particle size and size-resolved mineralogical composition. However, there is very limited quantitative knowledge on the particle size and composition of the parent sediments along with their variability within dust-source regions, particularly in dust emission hotspots. The lower Dr\u00e2a Valley, an inland drainage basin and dust hotspot region located in the Moroccan Sahara, was chosen for a comprehensive analysis of sediment particle size and mineralogy. Different sediment type samples (n=\u200942) were collected, including paleo-sediments, paved surfaces, crusts, and dunes, and analysed for particle-size distribution (minimally and fully dispersed samples) and mineralogy. Furthermore, Fe sequential wet extraction was carried out to characterise the modes of occurrence of Fe, including Fe in Fe (oxyhydr)oxides, mainly from goethite and hematite, which are key to dust radiative effects; the poorly crystalline pool of Fe (readily exchangeable ionic Fe and Fe in nano-Fe oxides), relevant to dust impacts upon ocean biogeochemistry; and structural Fe. Results yield a conceptual model where both particle size and mineralogy are segregated by transport and deposition of sediments during runoff of water across the basin and by the precipitation of salts, which causes a sedimentary fractionation. The proportion of coarser particles enriched in quartz is higher in the highlands, while that of finer particles rich in clay, carbonates, and Fe oxides is higher in the lowland dust emission hotspots. There, when water ponds and evaporates, secondary carbonates and salts precipitate, and the clays are enriched in readily exchangeable ionic Fe, due to sorption of dissolved Fe by illite. The results differ from currently available mineralogical atlases and highlight the need for observationally constrained global high-resolution mineralogical data for mineral-speciated dust modelling. The dataset obtained represents an important resource for future evaluation of surface mineralogy retrievals from spaceborne spectroscopy.</p></article>", "keywords": ["Mineral dusts", "geology", "550", "QC1-999", "Climate", "01 natural sciences", "\u00c0rees tem\u00e0tiques de la UPC::Desenvolupament hum\u00e0 i sostenible::Enginyeria ambiental", "Pols minerals", "QD1-999", "Sahara", "0105 earth and related environmental sciences", "mineral dust", "S\u00e0hara", "info:eu-repo/classification/ddc/550", "ddc:550", "Physics", "Aire--Contaminaci\u00f3", "15. Life on land", "info:eu-repo/classification/udc/502.3/.7", "6. Clean water", "Earth sciences", "Chemistry", "13. Climate action", "Air--Pollution", "Desert dust", "aerosols"]}, "links": [{"href": "https://acp.copernicus.org/articles/23/15815/2023/acp-23-15815-2023.pdf"}, {"href": "https://doi.org/20.500.12556/RUNG-8752"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "20.500.12556/RUNG-8752", "name": "item", "description": "20.500.12556/RUNG-8752", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/20.500.12556/RUNG-8752"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-12-22T00:00:00Z"}}, {"id": "20.500.12556/RUNG-9073", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:16Z", "type": "Journal Article", "created": "2022-11-07", "title": "Insights into the single particle composition, size, mixing state and aspect ratio of freshly emitted mineral dust from field measurements in the Moroccan Sahara using electron microscopy", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. The chemical and morphological properties of mineral dust aerosols emitted by wind erosion from arid and semi-arid regions influence climate, ocean and land ecosystems, air quality, and multiple socio-economic sectors. However, there is an incomplete understanding of the emitted dust particle size distribution (PSD) in terms of its constituent minerals that typically result from the fragmentation of soil aggregates during wind erosion. The emitted dust PSD affects the duration of particle transport and thus each mineral\u2019s global distribution, along with its specific effect upon climate. This lack of understanding is largely due to the scarcity of relevant in situ measurements in dust sources. To advance our understanding of the physicochemical properties of the emitted dust PSD, we present insights into the elemental composition and morphology of individual dust particles collected during the FRontiers in dust minerAloGical coMposition and its Effects upoN climaTe (FRAGMENT) field campaign in the Moroccan Sahara in September 2019. We analyzed more than 300,000 freshly emitted individual particles by performing offline analysis in the laboratory using Scanning Electron Microscopy (SEM) coupled with Energy-Dispersive X-ray Spectrometry (EDX). Eight major particle-type classes were identified where clay minerals make up the majority of the analyzed particles by number, with carbonates and quartz contributing to a lesser extent. We provide an exhaustive analysis of the size distribution and potential mixing state of different particle types, focusing largely on iron-rich (Fe-oxi/hydroxides) and feldspar particles, which are key to the effects of dust upon radiation and clouds. Nearly pure or externally mixed Fe-oxi/hydroxides are present only in diameters smaller than 2 \u00b5m and mainly below 1 \u00b5m. Fe-oxi/hydroxides tend to be increasingly internally mixed with other minerals, especially clays, as particle size increases, i.e., the volume fraction of Fe-oxi/hydroxides in aggregates decreases with particle size. Pure (externally-mixed) feldspar grains represented 3.7 % of all the particles, of which we estimated about a quarter to be K-feldspar. The externally-mixed total feldspar and K-feldspar abundances are relatively invariant with particle size, in contrast to the increasing abundance of feldspar-like (internally-mixed) aggregates with particle size. We also found that overall the median aspect ratio is rather constant across particle size and mineral groups, although we obtain slightly higher aspect ratios for internally-mixed particles. The detailed information on the composition of freshly emitted individual dust particles along with the quantitative analysis of their mixing state presented here can be used to constrain climate models including mineral species in their representation of the dust cycle.</p></article>", "keywords": ["Atmospheric chemistry", "550", "QC1-999", "http://metadata.un.org/sdg/3", "Mineral dust", "01 natural sciences", "Climate models", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria agroaliment\u00e0ria::Ci\u00e8ncies de la terra i de la vida::Climatologia i meteorologia", "Aerosols Measurement", "Pols minerals", "QD1-999", "Ensure healthy lives and promote well-being for all at all ages", "0105 earth and related environmental sciences", "mineral dust", "info:eu-repo/classification/ddc/550", "electron microscopy", "ddc:550", "Physics", "15. Life on land", "info:eu-repo/classification/udc/502.3/.7", "Pollution", "Moroccan Sahara", "Earth sciences", "Chemistry", "13. Climate action", "Mineral dust particles", "Air quality", "Desert dust"]}, "links": [{"href": "https://acp.copernicus.org/articles/23/3861/2023/acp-23-3861-2023.pdf"}, {"href": "https://acp.copernicus.org/articles/23/3861/2023/acp-23-3861-2023-supplement.pdf"}, {"href": "https://doi.org/20.500.12556/RUNG-9073"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "20.500.12556/RUNG-9073", "name": "item", "description": "20.500.12556/RUNG-9073", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/20.500.12556/RUNG-9073"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-11-07T00:00:00Z"}}, {"id": "2117/166448", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:21Z", "type": "Journal Article", "created": "2019-06-14", "title": "Monitoring the impact of desert dust outbreaks for air quality for health studies", "description": "We review the major features of desert dust outbreaks that are relevant to the assessment of dust impacts upon human health. Our ultimate goal is to provide scientific guidance for the acquisition of relevant population exposure information for epidemiological studies tackling the short and long term health effects of desert dust. We first describe the source regions and the typical levels of dust particles in regions close and far away from the source areas, along with their size, composition, and bio-aerosol load. We then describe the processes by which dust may become mixed with anthropogenic particulate matter (PM) and/or alter its load in receptor areas. Short term health effects are found during desert dust episodes in different regions of the world, but in a number of cases the results differ when it comes to associate the effects to the bulk PM, the desert dust-PM, or non-desert dust-PM. These differences are likely due to the different monitoring strategies applied in the epidemiological studies, and to the differences on atmospheric and emission (natural and anthropogenic) patterns of desert dust around the world. We finally propose methods to allow the discrimination of health effects by PM fraction during dust outbreaks, and a strategy to implement desert dust alert and monitoring systems for health studies and air quality management.", "keywords": ["Aerosols", "Air Movements", "Epidemiological studies", "Air Pollutants", "Pols mineral -- Tesis doctorals", "Epidemiology", ":Energies [\u00c0rees tem\u00e0tiques de la UPC]", "Atmospheric particulate matter", "Dust", "15. Life on land", "Mineral dust", "01 natural sciences", "Article", "3. Good health", "Environmental sciences", "13. Climate action", "\u00c0rees tem\u00e0tiques de la UPC::Energies", "Air Pollution", "11. Sustainability", "GE1-350", "Desert dust", "Dust control", "Environmental Monitoring", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/2117/166448"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environment%20International", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2117/166448", "name": "item", "description": "2117/166448", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2117/166448"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-09-01T00:00:00Z"}}, {"id": "2117/342239", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:21Z", "type": "Journal Article", "created": "2021-03-17", "title": "Quantifying the range of the dust direct radiative effect due to source mineralogy uncertainty", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. The large uncertainty in the mineral dust direct radiative effect (DRE) hinders projections of future climate change due to anthropogenic activity. Resolving modeled dust mineral speciation allows for spatially and temporally varying refractive indices consistent with dust aerosol composition. Here, for the first time, we quantify the range in dust DRE at the top of the atmosphere (TOA) due to current uncertainties in the surface soil mineralogical content using a dust mineral-resolving climate model. We propagate observed uncertainties in soil mineral abundances from two soil mineralogy atlases along with the optical properties of each mineral into the DRE and compare the resultant range with other sources of uncertainty across six climate models. The shortwave DRE responds region-specifically to the dust burden depending on the mineral speciation and underlying shortwave surface albedo: positively when the regionally averaged annual surface albedo is larger than 0.28 and negatively otherwise. Among all minerals examined, the shortwave TOA DRE and single scattering albedo at the 0.44\u20130.63\u2009\u00b5m band are most sensitive to the fractional contribution of iron oxides to the total dust composition. The global net (shortwave plus longwave) TOA DRE is estimated to be within \u22120.23 to +0.35\u2009W\u2009m\u22122. Approximately 97\u2009% of this range relates to uncertainty in the soil abundance of iron oxides. Representing iron oxide with solely hematite optical properties leads to an overestimation of shortwave DRE by +0.10\u2009W\u2009m\u22122 at the TOA, as goethite is not as absorbing as hematite in the shortwave spectrum range. Our study highlights the importance of iron oxides to the shortwave DRE: they have a disproportionally large impact on climate considering their small atmospheric mineral mass fractional burden (\u223c2\u2009%). An improved description of iron oxides, such as those planned in the Earth Surface Mineral Dust Source Investigation (EMIT), is thus essential for more accurate estimates of the dust DRE.</p></article>", "keywords": ["Mineral dusts", "Atmospheric sciences", "550", "QC1-999", "Iron oxides", "01 natural sciences", "Atmospheric Sciences", ":Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica [\u00c0rees tem\u00e0tiques de la UPC]", "[SDU] Sciences of the Universe [physics]", "\u00d2xids de ferro", "Pols", "Meteorology & Atmospheric Sciences", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica", "QD1-999", "0105 earth and related environmental sciences", "info:eu-repo/classification/ddc/550", "Climate change science", "ddc:550", "Physics", "Climatic changes", "15. Life on land", "Climate Action", "Earth sciences", "Chemistry", "[SDU]Sciences of the Universe [physics]", "13. Climate action", "Earth Sciences", "Astronomical and Space Sciences", "Canvis clim\u00e0tics"]}, "links": [{"href": "https://acp.copernicus.org/articles/21/3973/2021/acp-21-3973-2021.pdf"}, {"href": "https://escholarship.org/content/qt27c9p2v2/qt27c9p2v2.pdf"}, {"href": "https://doi.org/2117/342239"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2117/342239", "name": "item", "description": "2117/342239", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2117/342239"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-09-15T00:00:00Z"}}, {"id": "2117/360820", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:21Z", "type": "Journal Article", "created": "2022-01-14", "title": "Assimilating spaceborne lidar dust extinction can improve dust forecasts", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Atmospheric mineral dust has a rich tri-dimensional spatial and temporal structure that is poorly constrained in forecasts and analyses when only column-integrated aerosol optical depth (AOD) is assimilated. At present, this is the case of most operational global aerosol assimilation products. Aerosol vertical distributions obtained from spaceborne lidars can be assimilated in aerosol models, but questions about the extent of their benefit upon analyses and forecasts along with their consistency with AOD assimilation remain unresolved. Our study thoroughly explores the added value of assimilating spaceborne vertical dust profiles, with and without the joint assimilation of dust optical depth (DOD). We also discuss the consistency in the assimilation of both sources of information and analyse the role of the smaller footprint of the spaceborne lidar profiles in the results. To that end, we have performed data assimilation experiments using dedicated dust observations for a period of 2 months over northern Africa, the Middle East, and Europe. We assimilate DOD derived from the Visible Infrared Imaging Radiometer Suite (VIIRS) on board Suomi National Polar-Orbiting Partnership (SUOMI-NPP) Deep Blue and for the first time Cloud-Aerosol Lidar with Orthogonal Polarisation (CALIOP)-based LIdar climatology of Vertical Aerosol Structure for space-based lidar simulation studies (LIVAS) pure-dust extinction coefficient profiles on an aerosol model. The evaluation is performed against independent ground-based DOD derived from AErosol RObotic NETwork (AERONET) Sun photometers and ground-based lidar dust extinction profiles from the Cyprus Clouds Aerosol and Rain Experiment (CyCARE) and PREparatory: does dust TriboElectrification affect our ClimaTe (Pre-TECT) field campaigns. Jointly assimilating LIVAS and Deep Blue data reduces the root mean square error (RMSE) in the DOD by 39\u2009% and in the dust extinction coefficient by 65\u2009% compared to a control simulation that excludes assimilation. We show that the assimilation of dust extinction coefficient profiles provides a strong added value to the analyses and forecasts. When only Deep Blue data are assimilated, the RMSE in the DOD is reduced further, by 42\u2009%. However, when only LIVAS data are assimilated, the RMSE in the dust extinction coefficient decreases by 72\u2009%, the largest improvement across experiments. We also show that the assimilation of dust extinction profiles yields better skill scores than the assimilation of DOD under an equivalent sensor footprint. Our results demonstrate the strong potential of future lidar space missions to improve desert dust forecasts, particularly if they foresee a depolarization lidar channel to allow discrimination of desert dust from other aerosol types.</p></article>", "keywords": ["Mineral dusts", "info:eu-repo/classification/ddc/550", "550", "ddc:550", "9. Industry and infrastructure", "Physics", "QC1-999", "Optical radar", "Aerosols atmosf\u00e8rics", "Atmospheric aerosols", "Radar \u00f2ptic", "01 natural sciences", ":Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica [\u00c0rees tem\u00e0tiques de la UPC]", "Earth sciences", "Chemistry", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria de la telecomunicaci\u00f3::Radiocomunicaci\u00f3 i exploraci\u00f3 electromagn\u00e8tica::Teledetecci\u00f3", ":Enginyeria de la telecomunicaci\u00f3::Radiocomunicaci\u00f3 i exploraci\u00f3 electromagn\u00e8tica::Teledetecci\u00f3 [\u00c0rees tem\u00e0tiques de la UPC]", "13. Climate action", "Pols", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica", "QD1-999", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://acp.copernicus.org/articles/22/535/2022/acp-22-535-2022.pdf"}, {"href": "https://doi.org/2117/360820"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2117/360820", "name": "item", "description": "2117/360820", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2117/360820"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-01-14T00:00:00Z"}}, {"id": "2117/364526", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:21Z", "type": "Journal Article", "created": "2022-03-17", "title": "Quantification of the dust optical depth across spatiotemporal scales with the MIDAS global dataset (2003\u20132017)", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Quantifying the dust optical depth (DOD) and its uncertainty across spatiotemporal scales is key to understanding and constraining the dust cycle and its interactions with the Earth System. This study quantifies the DOD along with its monthly and year-to-year variability between 2003 and 2017 at global and regional levels based on the MIDAS (ModIs Dust AeroSol) dataset, which combines Moderate Resolution Imaging Spectroradiometer (MODIS)-Aqua retrievals and Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA-2), reanalysis products. We also describe the annual and seasonal geographical distributions of DOD across the main dust source regions and transport pathways. MIDAS provides columnar mid-visible (550\u2009nm) DOD at fine spatial resolution (0.1\u2218\u00d70.1\u2218), expanding the current observational capabilities for monitoring the highly variable spatiotemporal features of the dust burden. We obtain a global DOD of 0.032\u00b10.003 \u2013 approximately a quarter (23.4\u2009%\u00b12.4\u2009%) of the global aerosol optical depth (AOD) \u2013 with about 1\u00a0order of magnitude more DOD in the Northern Hemisphere (0.056\u00b10.004; 31.8\u2009%\u00b12.7\u2009%) than in the Southern Hemisphere (0.008\u00b10.001; 8.2\u2009%\u00b11.1\u2009%) and about 3.5 times more DOD over land (0.070\u00b10.005) than over ocean (0.019\u00b10.002). The Northern Hemisphere monthly DOD is highly correlated with the corresponding monthly AOD (R2=0.94) and contributes 20\u2009% to 48\u2009% of it, both indicating a dominant dust contribution. In contrast, the contribution of dust to the monthly AOD does not exceed 17\u2009% in the Southern Hemisphere, although the uncertainty in this region is larger. Among the major dust sources of the planet, the maximum DODs (\u223c1.2) are recorded in the Bod\u00e9l\u00e9 Depression of the northern Lake Chad Basin, whereas moderate-to-high intensities are encountered in the Western Sahara (boreal summer), along the eastern parts of the Middle East (boreal summer) and in the Taklamakan Desert (spring). Over oceans, major long-range dust transport is observed primarily along the tropical Atlantic (intensified during boreal summer) and secondarily in the North Pacific (intensified during boreal spring). Our calculated global and regional averages and associated uncertainties are consistent with some but not all recent observation-based studies. Our work provides a simple yet flexible method to estimate consistent uncertainties across spatiotemporal scales, which will enhance the use of the MIDAS dataset in a variety of future studies.</p></article>", "keywords": ["Mineral dusts", "3702 Climate change science (for-2020)", "QC1-999", "0201 Astronomical and Space Sciences (for)", "0401 Atmospheric Sciences (for)", "3701 Atmospheric Sciences (for-2020)", "01 natural sciences", "Meteorology & Atmospheric Sciences (science-metrix)", "Atmospheric Sciences", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria agroaliment\u00e0ria::Ci\u00e8ncies de la terra i de la vida::Climatologia i meteorologia", "Simulaci\u00f3 per ordinador", "Pols", "Meteorology & Atmospheric Sciences", "Datasets", "Dust optical depth (DOD)", "Earth System", "QD1-999", "0105 earth and related environmental sciences", ":Enginyeria agroaliment\u00e0ria::Ci\u00e8ncies de la terra i de la vida::Climatologia i meteorologia [\u00c0rees tem\u00e0tiques de la UPC]", "3701 Atmospheric sciences (for-2020)", "Physics", "MIDAS global dataset", "16. Peace & justice", "Climate Action", "Chemistry", "37 Earth Sciences (for-2020)", "13. Climate action", "Mineral dust particles", "13 Climate Action (sdg)", "Astronomical and Space Sciences"]}, "links": [{"href": "https://acp.copernicus.org/articles/22/3553/2022/acp-22-3553-2022.pdf"}, {"href": "https://escholarship.org/content/qt9v38c6qs/qt9v38c6qs.pdf"}, {"href": "https://doi.org/2117/364526"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2117/364526", "name": "item", "description": "2117/364526", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2117/364526"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-07-19T00:00:00Z"}}, {"id": "2117/393811", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:22Z", "type": "Journal Article", "created": "2023-02-20", "title": "Modeling dust mineralogical composition: sensitivity to soil mineralogy atlases and their expected climate impacts", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Soil dust aerosols are a key component of the climate system, as they interact with short- and long-wave radiation, alter cloud formation processes, affect atmospheric chemistry and play a role in biogeochemical cycles by providing nutrient inputs such as iron and phosphorus. The influence of dust on these processes depends on its physico-chemical properties, which far from being homogeneous, are shaped by its regionally varying mineral composition. The relative amount of minerals in dust depends on the source region and shows a large geographical variability. However, many state-of-the-art Earth System Models (ESMs), upon which climate analyses and projections rely, still consider dust mineralogy as invariant. The explicit representation of minerals in ESMs is more hindered by our limited knowledge of the global soil composition along with the resulting size-resolved airborne mineralogy than by computational constraints. In this work, we introduce an explicit mineralogy representation within the state-of-the-art atmosphere-chemistry model MONARCH. We review and compare two existing soil mineralogy datasets, which remain a source of uncertainty for dust mineralogy modelling, and provide an evaluation of multi-annual simulations against available mineralogy observations. Soil mineralogy datasets are based on measurements performed after wet sieving, which breaks the aggregates found in the parent soil. Our model predicts the emitted particle size distribution (PSD) in terms of its constituent minerals based on Brittle Fragmentation Theory (BFT), which reconstructs the emitted mineral aggregates destroyed by wet sieving. Our simulations broadly reproduce the most abundant mineral fractions, independently of the soil composition data used. Feldspars and calcite are highly sensitive to the soil mineralogy map, mainly due to the different assumptions made in each soil dataset to extrapolate a handful of soil measurements to arid and semiarid regions worldwide. For the least abundant or more difficult to determine minerals, such as the iron oxides, uncertainties in soil mineralogy yield differences in annual mean aerosol mass fractions of up to \u223c100 %. Although BFT restores coarse aggregates including phyllosilicates that usually break during soil analysis, we still identify an overestimation of coarse quartz mass fractions (above 2 \u00b5m in diameter). In a dedicated experiment, we estimate the fraction of dust with undetermined composition as given by a soil map, which makes a \u223c10 % of the emitted dust mass at the global scale, and can be regionally larger. Changes in the underlying soil mineralogy impact our estimates of climate-relevant variables, particularly affecting the regional variability of the single scattering albedo at solar wavelengths, or the total iron deposited over oceans. All in all, this assessment represents a baseline for future model experiments including new mineralogical maps constrained by high quality spaceborne hyperspectral measurements, such as those arising from the NASA EMIT mission.</p></article>", "keywords": ["Mineral dusts", "[SDU.OCEAN]Sciences of the Universe [physics]/Ocean", "info:eu-repo/classification/ddc/550", "550", "Atmosphere", "ddc:550", "[SDU.OCEAN] Sciences of the Universe [physics]/Ocean", " Atmosphere", "Physics", "QC1-999", "Climatologia -- Models matem\u00e0tics", "Aerosols atmosf\u00e8rics", "15. Life on land", "Atmospheric aerosols", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "Climatology -- Mathematical models", "\u00c0rees tem\u00e0tiques de la UPC::Desenvolupament hum\u00e0 i sostenible::Enginyeria ambiental", "Earth sciences", "Chemistry", "13. Climate action", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "Pols minerals", "environment", "QD1-999"]}, "links": [{"href": "https://acp.copernicus.org/articles/23/8623/2023/acp-23-8623-2023.pdf"}, {"href": "https://doi.org/2117/393811"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2117/393811", "name": "item", "description": "2117/393811", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2117/393811"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-02-20T00:00:00Z"}}, {"id": "2117/400337", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:22Z", "type": "Journal Article", "created": "2024-01-21", "title": "On-orbit calibration and performance of the EMIT imaging spectrometer", "description": "Open AccessArticle signat per 56 autors: David R. Thompson, Robert O. Green, Christine Bradley, Philip G. Brodrick, Natalie Mahowald, Eyal Ben Dor, Matthew Bennett, Michael Bernas, Nimrod Carmon, K. Dana Chadwick, Roger N. Clark, Red Willow Coleman, Evan Cox, Ernesto Diaz, Michael L. Eastwood, Regina Eckert, Bethany L. Ehlmann, Paul Ginoux, Mar\u00eda Gon\u00e7alves Ageitos, Kathleen Grant, Luis Guanter, Daniela Heller Pearlshtien, Mark Helmlinger, Harrison Herzog, Todd Hoefen, Yue Huang, Abigail Keebler, Olga Kalashnikova, Didier Keymeulen, Raymond Kokaly, Martina Klose, Longlei Li, Sarah R. Lundeen, John Meyer, Elizabeth Middleton, Ron L. Miller, Pantazis Mouroulis, Bogdan Oaida, Vincenzo Obiso, Francisco Ochoa, Winston Olson-Duvall, Gregory S. Okin, Thomas H. Painter, Carlos P\u00e9rez Garc\u00eda-Pando, Randy Pollock, Vincent Realmuto, Lucas Shaw, Peter Sullivan, Gregg Swayze, Erik Thingvold, Andrew K. Thorpe, Suresh Vannan, Catalina Villarreal, Charlene Ung, Daniel W. Wilson, Sander Zandbergen.", "keywords": ["Mineral dusts", "Teledetecci\u00f3", "550", "Radiative forcing", "7. Clean energy", "Validation", "\u00c0rees tem\u00e0tiques de la UPC::F\u00edsica::Astronomia i astrof\u00edsica", "Spectrometer--Calibration", "Pols minerals", "Visible-shortwave infrared spectroscopy", "info:eu-repo/classification/ddc/550", "ddc:550", "International space station", "Remote sensing", "Mineralogy", "Espect\u00f2metres--Calibratge", "Imaging spectroscopy", "EMIT", "Earth sciences", "Atmospheric correction", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria de la telecomunicaci\u00f3::Radiocomunicaci\u00f3 i exploraci\u00f3 electromagn\u00e8tica::Teledetecci\u00f3", "13. Climate action", "Hyperspectral imagery", "Calibration", "Mineral dust cycle", "NASA"]}, "links": [{"href": "https://doi.org/2117/400337"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Remote%20Sensing%20of%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2117/400337", "name": "item", "description": "2117/400337", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2117/400337"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-03-01T00:00:00Z"}}, {"id": "2117/401602", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:22Z", "type": "Journal Article", "created": "2023-05-15", "title": "Performance and Early Results from the Earth Surface Mineral Dust Source Investigation (EMIT) Imaging Spectroscopy Mission", "description": "RestrictedThe authors gratefully acknowledge all the elements of the National Aeronautics and Space Administration, our partners, and the science community who have contributed to the development of the EMIT mission. EMIT is supported by the National Aeronautics and Space Administration Earth Venture Instrument Program under the Earth Science Division of the Science Mission Directorate. This research was performed at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.", "keywords": ["Mineral dusts", "550", "500", "15. Life on land", "7. Clean energy", "Spectrometer", "3. Good health", "Earth (Planet)--Surface", "Espect\u00f2metres", "13. Climate action", "Terra (Planeta)--Superf\u00edcie", "11. Sustainability", "\u00c0rees tem\u00e0tiques de la UPC::F\u00edsica::Astronomia i astrof\u00edsica", "14. Life underwater", "Pols minerals"]}, "links": [{"href": "http://xplorestaging.ieee.org/ielx7/10115529/10115530/10115851.pdf?arnumber=10115851"}, {"href": "https://doi.org/2117/401602"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2023%20IEEE%20Aerospace%20Conference", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2117/401602", "name": "item", "description": "2117/401602", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2117/401602"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-03-04T00:00:00Z"}}, {"id": "2949948697", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:36Z", "type": "Journal Article", "created": "2019-06-14", "title": "Monitoring the impact of desert dust outbreaks for air quality for health studies", "description": "We review the major features of desert dust outbreaks that are relevant to the assessment of dust impacts upon human health. Our ultimate goal is to provide scientific guidance for the acquisition of relevant population exposure information for epidemiological studies tackling the short and long term health effects of desert dust. We first describe the source regions and the typical levels of dust particles in regions close and far away from the source areas, along with their size, composition, and bio-aerosol load. We then describe the processes by which dust may become mixed with anthropogenic particulate matter (PM) and/or alter its load in receptor areas. Short term health effects are found during desert dust episodes in different regions of the world, but in a number of cases the results differ when it comes to associate the effects to the bulk PM, the desert dust-PM, or non-desert dust-PM. These differences are likely due to the different monitoring strategies applied in the epidemiological studies, and to the differences on atmospheric and emission (natural and anthropogenic) patterns of desert dust around the world. We finally propose methods to allow the discrimination of health effects by PM fraction during dust outbreaks, and a strategy to implement desert dust alert and monitoring systems for health studies and air quality management.", "keywords": ["Aerosols", "Air Movements", "Epidemiological studies", "Air Pollutants", "Pols mineral -- Tesis doctorals", "Epidemiology", ":Energies [\u00c0rees tem\u00e0tiques de la UPC]", "Atmospheric particulate matter", "Dust", "15. Life on land", "Mineral dust", "01 natural sciences", "Article", "3. Good health", "Environmental sciences", "13. Climate action", "\u00c0rees tem\u00e0tiques de la UPC::Energies", "Air Pollution", "11. Sustainability", "GE1-350", "Desert dust", "Dust control", "Environmental Monitoring", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/2949948697"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environment%20International", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2949948697", "name": "item", "description": "2949948697", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2949948697"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-09-01T00:00:00Z"}}, {"id": "3154587330", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:49Z", "type": "Journal Article", "created": "2021-10-25", "title": "Mineral dust cycle in the Multiscale Online Nonhydrostatic AtmospheRe CHemistry model (MONARCH) Version 2.0", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. We present the dust module in the Multiscale Online Non-hydrostatic AtmospheRe CHemistry model (MONARCH) version 2.0, a chemical weather prediction system that can be used for regional and global modeling at a range of resolutions. The representations of dust processes in MONARCH were upgraded with a focus on dust emission (emission parameterizations, entrainment thresholds, considerations of soil moisture and surface cover), lower boundary conditions (roughness, potential dust sources), and dust\u2013radiation interactions. MONARCH now allows modeling of global and regional mineral dust cycles using fundamentally different paradigms, ranging from strongly simplified to physics-based parameterizations. We present a detailed description of these updates along with four global benchmark simulations, which use conceptually different dust emission parameterizations, and we evaluate the simulations against observations of dust optical depth. We determine key dust parameters, such as global annual emission/deposition flux, dust loading, dust optical depth, mass-extinction efficiency, single-scattering albedo, and direct radiative effects. For dust-particle diameters up to 20\u2009\u00b5m, the total annual dust emission and deposition fluxes obtained with our four experiments range between about 3500 and 6000\u2009Tg, which largely depend upon differences in the emitted size distribution. Considering ellipsoidal particle shapes and dust refractive indices that account for size-resolved mineralogy, we estimate the global total (longwave and shortwave) dust direct radiative effect (DRE) at the surface to range between about \u22120.90 and \u22120.63\u2009W\u2009m\u22122 and at the top of the atmosphere between \u22120.20 and \u22120.28\u2009W\u2009m\u22122. Our evaluation demonstrates that MONARCH is able to reproduce key features of the spatiotemporal variability of the global dust cycle with important and insightful differences between the different configurations.                     </p></article>", "keywords": ["Mineral dusts", "Previsi\u00f3 del temps", "QE1-996.5", "info:eu-repo/classification/ddc/550", "550", "ddc:550", "Geology", "15. Life on land", "01 natural sciences", ":Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica [\u00c0rees tem\u00e0tiques de la UPC]", "Weather forecasting", "Climate Action", "[SDU] Sciences of the Universe [physics]", "Earth sciences", "[SDU]Sciences of the Universe [physics]", "13. Climate action", "Earth Sciences", "Pols", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria qu\u00edmica::Qu\u00edmica del medi ambient::Qu\u00edmica atmosf\u00e8rica", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://gmd.copernicus.org/articles/14/6403/2021/gmd-14-6403-2021.pdf"}, {"href": "https://escholarship.org/content/qt2r39x8b5/qt2r39x8b5.pdf"}, {"href": "https://doi.org/3154587330"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoscientific%20Model%20Development", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "3154587330", "name": "item", "description": "3154587330", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/3154587330"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-04-01T00:00:00Z"}}, {"id": "3185943994", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:22:51Z", "type": "Journal Article", "created": "2022-03-17", "title": "Quantification of the dust optical depth across spatiotemporal scales with the MIDAS global dataset (2003\u20132017)", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Abstract. Quantifying the dust optical depth (DOD) and its uncertainty across spatiotemporal scales is key to understanding and constraining the dust cycle and its interactions with the Earth System. This study quantifies the DOD along with its monthly and year-to-year variability between 2003 and 2017 at global and regional levels based on the MIDAS (ModIs Dust AeroSol) dataset, which combines Moderate Resolution Imaging Spectroradiometer (MODIS)-Aqua retrievals and Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA-2), reanalysis products. We also describe the annual and seasonal geographical distributions of DOD across the main dust source regions and transport pathways. MIDAS provides columnar mid-visible (550\u2009nm) DOD at fine spatial resolution (0.1\u2218\u00d70.1\u2218), expanding the current observational capabilities for monitoring the highly variable spatiotemporal features of the dust burden. We obtain a global DOD of 0.032\u00b10.003 \u2013 approximately a quarter (23.4\u2009%\u00b12.4\u2009%) of the global aerosol optical depth (AOD) \u2013 with about 1\u00a0order of magnitude more DOD in the Northern Hemisphere (0.056\u00b10.004; 31.8\u2009%\u00b12.7\u2009%) than in the Southern Hemisphere (0.008\u00b10.001; 8.2\u2009%\u00b11.1\u2009%) and about 3.5 times more DOD over land (0.070\u00b10.005) than over ocean (0.019\u00b10.002). The Northern Hemisphere monthly DOD is highly correlated with the corresponding monthly AOD (R2=0.94) and contributes 20\u2009% to 48\u2009% of it, both indicating a dominant dust contribution. In contrast, the contribution of dust to the monthly AOD does not exceed 17\u2009% in the Southern Hemisphere, although the uncertainty in this region is larger. Among the major dust sources of the planet, the maximum DODs (\u223c1.2) are recorded in the Bod\u00e9l\u00e9 Depression of the northern Lake Chad Basin, whereas moderate-to-high intensities are encountered in the Western Sahara (boreal summer), along the eastern parts of the Middle East (boreal summer) and in the Taklamakan Desert (spring). Over oceans, major long-range dust transport is observed primarily along the tropical Atlantic (intensified during boreal summer) and secondarily in the North Pacific (intensified during boreal spring). Our calculated global and regional averages and associated uncertainties are consistent with some but not all recent observation-based studies. Our work provides a simple yet flexible method to estimate consistent uncertainties across spatiotemporal scales, which will enhance the use of the MIDAS dataset in a variety of future studies.                     </p></article>", "keywords": ["Mineral dusts", ":Enginyeria agroaliment\u00e0ria::Ci\u00e8ncies de la terra i de la vida::Climatologia i meteorologia [\u00c0rees tem\u00e0tiques de la UPC]", "Physics", "QC1-999", "MIDAS global dataset", "16. Peace & justice", "01 natural sciences", "Atmospheric Sciences", "Climate Action", "Chemistry", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria agroaliment\u00e0ria::Ci\u00e8ncies de la terra i de la vida::Climatologia i meteorologia", "13. Climate action", "Mineral dust particles", "Simulaci\u00f3 per ordinador", "Pols", "Meteorology & Atmospheric Sciences", "Datasets", "Dust optical depth (DOD)", "Earth System", "QD1-999", "Astronomical and Space Sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://acp.copernicus.org/articles/22/3553/2022/acp-22-3553-2022.pdf"}, {"href": "https://escholarship.org/content/qt9v38c6qs/qt9v38c6qs.pdf"}, {"href": "https://doi.org/3185943994"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Atmospheric%20Chemistry%20and%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "3185943994", "name": "item", "description": "3185943994", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/3185943994"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-07-19T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Mineral+dust&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Mineral+dust&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Mineral+dust&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Mineral+dust&offset=42", "hreflang": "en-US"}], "numberMatched": 42, "numberReturned": 42, "distributedFeatures": [], "timeStamp": "2026-09-21T04:53:56.211048Z"}