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The objective of this paper is to propose a new semi-empirical radar backscattering model for bare soil surfaces based on the Dubois model. A wide dataset of backscattering coefficients extracted from SAR (synthetic aperture radar) images and in situ soil surface parameter measurements (moisture content and roughness) is used. This dataset contains a wide range of incidence angles (18°-57°) and radar...
In this paper, temporal trends of brightness temperature and related microwave indexes from AMSR-E and SMOS satellites were analyzed. Datasets were collected on three forest areas characterized by different climatic conditions and tree species. The test plots are: a deciduous forest of Larix in China; an evergreen Spruce forest in Russia; the mixed “Foreste Casentinesi” in Central Italy. The availability...
This work deals with mapping snow water equivalent as well as soil moisture at low resolution from multifrequency microwave radiometers. The algorithm developed and implemented in this work produces the spatial distribution at regional scale of snow depth (SD) and of soil moisture (SMC) of snow free areas by using the brightness temperatures of the Advanced Multifrequency Scanning Radiometer (AMSR-E).
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