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Remote Sens. 2011, 3(6), 1266-1283; doi:10.3390/rs3061266
Article

Estimating Surface Soil Moisture from TerraSAR-X Data over Two Small Catchments in the Sahelian Part of Western Niger

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Received: 22 April 2011; in revised form: 15 June 2011 / Accepted: 15 June 2011 / Published: 23 June 2011
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Abstract: The objective of this study is to validate an approach based on the change detection in multitemporal TerraSAR images (X-band) for mapping soil moisture in the Sahelian area. In situ measurements were carried out simultaneously with TerraSAR-X acquisitions on two study sites in Niger. The results show the need for comparing the difference between the rainy season image and a reference image acquired in the dry season. The use of two images enables a reduction of the roughness effects. The soils of plateaus covered with erosion crusts are dry throughout the year while the fallows show more significant moisture during the rainy season. The accuracy on the estimate of soil moisture is about 2.3% (RMSE) in comparison with in situ moisture contents.
Keywords: soil moisture estimation; Sahel; TerraSAR-X; biological crust soil moisture estimation; Sahel; TerraSAR-X; biological crust
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Baghdadi, N.; Camus, P.; Beaugendre, N.; Issa, O.M.; Zribi, M.; Desprats, J.F.; Rajot, J.L.; Abdallah, C.; Sannier, C. Estimating Surface Soil Moisture from TerraSAR-X Data over Two Small Catchments in the Sahelian Part of Western Niger. Remote Sens. 2011, 3, 1266-1283.

AMA Style

Baghdadi N, Camus P, Beaugendre N, Issa OM, Zribi M, Desprats JF, Rajot JL, Abdallah C, Sannier C. Estimating Surface Soil Moisture from TerraSAR-X Data over Two Small Catchments in the Sahelian Part of Western Niger. Remote Sensing. 2011; 3(6):1266-1283.

Chicago/Turabian Style

Baghdadi, Nicolas; Camus, Pauline; Beaugendre, Nicolas; Issa, Oumarou Malam; Zribi, Mehrez; Desprats, Jean François; Rajot, Jean Louis; Abdallah, Chadi; Sannier, Christophe. 2011. "Estimating Surface Soil Moisture from TerraSAR-X Data over Two Small Catchments in the Sahelian Part of Western Niger." Remote Sens. 3, no. 6: 1266-1283.


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