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Soil moisture is still a poorly simulated component of general circulation models (GCM). Remotely sensed soil wetness information could be useful for improving the performance of these models. Soil moisture maps derived from ERS Scatterometer imagery are discussed. The ER Scatterometer is a radar operating at 5.3 GHz (C-band) and has a spatial resolution of about 50 km. Its three antennae illuminate the surface from three different viewing directions which allows vegetation and soil moisture effects on the signal to be distinguished. Soil moisture maps of three climatic zones are presented: Mediterranean climate (Iberian Peninsula), wet-dry tropical climate (Mali), and moist-continental climate (Hungary). The analysis shows that the ERS Scatterometer based soil moisture maps reflect the different precipitation patterns of these regions very well.

Additional information

Authors: WAGNER W, JRC Ispra (IT)
Bibliographic Reference: Paper presented: ECO BP '98 International Symposium on Resource and Environmental Monitoring, Local, Regional, Global, Budapest (HU), September 1-4, 1998
Availability: Available from (1) as Paper EN 41283 ORA
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