CORDIS OpenAire Sygma HAL INRAE Bielefeld Academic Search Engine (BASE) UnpayWall HAL-INSU HAL-IRD Horizon / Pleins textes Crossref Microsoft Academic Graph Remote Sensing of Environment Open Access 2020-08-24 2022-08-25 Abstract Radar data at C-band has shown great potential for the monitoring of soil and canopy hydric conditions of wheat crops. In this study, the C-band Sentinel-1 time series including the backscattering coefficients σ0 at VV and VH polarization, the polarization ratio (PR) and the interferometric coherence ρ are first analyzed with the support of experimental data gathered on three plots of irrigated winter wheat located in the Haouz plain in the center of Morocco covering five growing seasons. The results showed that ρ and PR are tightly related to the canopy development. ρ is also sensitive to soil preparation. By contrast, σ0 was found to be widely linked to changes in surface soil moisture (SSM) during the first growth stages when Leaf Area Index remains moderate ( [SDE] Environmental Sciences 2. Zero hunger Interferometric coherence 0211 other engineering and technologies 04 agricultural and veterinary sciences 02 engineering and technology 15. Life on land Surface soil moisture 630 Backscattering coefficient Winter wheat [SDE]Environmental Sciences Sentinel-1 0401 agriculture, forestry, and fisheries Semi-arid region C-band Nadia Ouaadi, Nadia Ouaadi, Said Khabba, Safa Bousbih, Mehrez Zribi, Lionel Jarlan, Pierre-Louis Frison, Jamal Ezzahar, El houssaine Bouras, El houssaine Bouras, 2020-12-01 journalpaper Abstract Radar data at C-band has shown great potential for the monitoring of soil and canopy hydric conditions of wheat crops. In this study, the C-band Sentinel-1 time series including the backscattering coefficients σ0 at VV and VH polarization, the polarization ratio (PR) and the interferometric coherence ρ are first analyzed with the support of experimental data gathered on three plots of irrigated winter wheat located in the Haouz plain in the center of Morocco covering five growing seasons. The results showed that ρ and PR are tightly related to the canopy development. ρ is also sensitive to soil preparation. By contrast, σ0 was found to be widely linked to changes in surface soil moisture (SSM) during the first growth stages when Leaf Area Index remains moderate ( Monitoring of wheat crops using the backscattering coefficient and the interferometric coherence derived from Sentinel-1 in semi-arid areas. Remote Sensing of Environment, 251, 112050. 10.1016/j.rse.2020.112050 https://doi.org/10.1016/j.rse.2020.112050