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Communication Dans Un Congrès Année : 2020

Sentinel-1 and Sentinel-2 data for the characterisation of the states of continental surface over a semi-arid region en Tunisia

Résumé

Radar and optical data have shown great potential for monitoring soil and canopy parameters. In this context, Sentinel-1 (S-1) and Sentinel-2 (S-2) time series were used to retrieve different parameters using models and different algorithms. The main objective of this study is to analyze the potential a synergetic use of radar and optical data for the estimation of soil moisture, irrigation detection and soil texture over agricultural areas for sustainable management of water and soil resources. First, the radar signal is simulated using a semi empirical backscattering model over bare soil and vegetation cover. The Water Cloud Model parameterized with NDVI for vegetation contribution allows a good estimation of soil moisture by inversion techniques. Soil moisture time series were then developed for the spatialization of irrigation and soil texture. In this study, both products have shown good agreement with in situ measurements.
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Dates et versions

hal-03085273 , version 1 (21-12-2020)

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Safa Bousbih, Mehrez Zribi, Zohra Lili-Chabaane, Bernard Mougenot, Charlotte Pelletier, et al.. Sentinel-1 and Sentinel-2 data for the characterisation of the states of continental surface over a semi-arid region en Tunisia. 2020 Mediterranean and Middle-East Geoscience and Remote Sensing Symposium (M2GARSS), Mar 2020, Tunis, Tunisia. pp.285-288, ⟨10.1109/M2GARSS47143.2020.9105158⟩. ⟨hal-03085273⟩
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