Microwave-derived soil moisture over Mediterranean land uses: from ground-based radiometry to SMOS data
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2 mai 2010
- handle: 10670/1.7b0jya
- hal: hal-02754460
- BIBCODE: 2010EGUGA..1210991S
- PRODINRA: 37202
Mots-clés
MISSION SMOS MISSION SMOSSujets proches
Radiation monitoring Radiometry Land Land utilization Utilization of land Use of land Pattern ModelCiter ce document
Kauzar Saleh Contell et al., « Microwave-derived soil moisture over Mediterranean land uses: from ground-based radiometry to SMOS data », HAL-SHS : géographie, ID : 10670/1.7b0jya
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Résumé
This communication will present the main results of a series of airborne and ground-based experiments conductedat the Valencia Anchor Station (VAS) site for the implementation of the SMOS emission model L-MEB (L-bandMicrowave Emission model of the Biosphere, Wigneron et al., 2007), and will evaluate the performance ofL-MEB against SMOS measurements.The L-MEB model has been implemented in the context of the SMOS mission and through numerous ra-diometry experiments over different land uses. Within L-MEB, each land use is characterised by modelparameterisations that are used to describe the radiative transfer at L-band. They describe, for instance, theattenuation properties of different canopies, or the effect of soil roughness on the surface emission.In recent years, the Valencia Anchor Station site (VAS) has hosted various radiometry experiments. Thesewere performed at different scales, from the plot scale to the regional scale (up to 50 km), using ground-basedand airborne-based radiometry. The main results are discussed in this communication, and some preliminarycomparisons with SMOS measurements are presented