Estimating Surface Soil Moisture from TerraSAR-X Data over Two Small Catchments in the Sahelian Part of Western Niger. - Nicolas N. Baghdadi; Pauline Camus; Nicolas Beaugendre; Oumarou Malam Issa; Mehrez Zribi; Jean François Desprats; Jean Louis Rajot; Chadi Abdallah; Christophe Sannier (Remote. Sens., 2011)