Compare of Satellite-based Soil Moisture Products and Western Siberia In-situ Data

The result of the comparison of satellite-based soil moisture products and in-situ data are presented. The data obtained by the SMOS and SMAP spacecraft were used. The in-situ soil moisture content was measured via a thermogravimetric approach. The absolute values of in-situ and satellite-based soil moisture have differed values on several samples. This may be due to both measurement errors and inaccuracies in the soil moisture retrieval algorithm.