Estimates of surface soil moisture in prairies using L- band passive microwaves
作者： K. Saleh , J.-P. Wigneron , P. de Rosnay , M.J. Escorihuela , Y. Kerr
DOI: 10.1109/IGARSS.2007.4423020
关键词: Salinity 、 Soil science 、 Water content 、 Microwave 、 Attenuation 、 Biosphere 、 Interception 、 Environmental science 、 L band 、 Scattering
摘要: This paper compares L-band measurements from three different experiments in areas covered by grass. The main objective is to assess soil moisture retrievals based on the Microwave Emission of Biosphere model (L-MEB) used Soil Moisture and Ocean Salinity mission (SMOS). Results indicate that over grass vegetation isotropic microwave propagation at horizontal polarisation, while vertical polarisation non-zero scattering observed for all data sets. Surface retrieved with enough accuracy sets as long roughness litter emission are calibrated beforehand. study also highlights importance detecting strong attenuation wet due rainfall interception. We show interception can be flagged using a index.
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