Access to Soil Moisture Values over a Sahelian Area: Modeling, Remote Sensing, and Groundmeasurements
نویسندگان
چکیده
Soil moisture is one of the most important variables that influences the soil-vegetation-atmosphere fluxes. This is particularly true over the Sahelian region, soil moisture has an important feedback on precipitation. It is particularly difficult to access to soil moisture values because its high temporal and spatial variability. Different approaches exist, but microwave remote sensing is the more appropriated to measure soil moisture values and its variations [1]. The futur SMOS (Soil Moisture and Ocean Salinity) mission is the first dedicate to soil moisture measurements [2]. The passive microwave sensor will be launched in July 2009, and will record earth emissivity in L-band. This paper proposes an evaluation of three approaches to estimate soil moisture values over a Sahelian region based on ground measurements.
منابع مشابه
Smos Soil Moisture Values Evaluation over Sahelian Area
Soil moisture is one of the most important variable that in uences the soil-vegetation-atmosphere uxes. However, due to its high temporal and spatial variability, it is dif cult to provide accurate quantitative information on soil moisture at regional and global scales. Different approaches exist, but remote sensing is the more appropriated to measure soil moisture values and its variations. It...
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