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SMOS-NEXT: A New Concept for Soil Moisture Retrieval from Passive Interferometric Observations

Published online by Cambridge University Press:  13 March 2013

Y. Soldo ,
F. Cabot ,
B. Rougé ,
Y. H. Kerr ,
A. Al Bitar  and
E. Epaillard
Y. Soldo
Affiliation:
Centre d’Études Spatiales de la Biosphère (CESBIO), 18 avenue Edouard Belin, bpi 2801, 31401 Toulouse Cedex 9, France. e-mail: [email protected] Centre National d’Études Spatiales (CNES), 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, France
F. Cabot
Affiliation:
Centre d’Études Spatiales de la Biosphère (CESBIO), 18 avenue Edouard Belin, bpi 2801, 31401 Toulouse Cedex 9, France. e-mail: [email protected] Centre National d’Études Spatiales (CNES), 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, France
B. Rougé
Affiliation:
Centre National d’Études Spatiales (CNES), 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, France
Y. H. Kerr
Affiliation:
Centre d’Études Spatiales de la Biosphère (CESBIO), 18 avenue Edouard Belin, bpi 2801, 31401 Toulouse Cedex 9, France. e-mail: [email protected] Centre National d’Études Spatiales (CNES), 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, France
A. Al Bitar
Affiliation:
Centre d’Études Spatiales de la Biosphère (CESBIO), 18 avenue Edouard Belin, bpi 2801, 31401 Toulouse Cedex 9, France. e-mail: [email protected]
E. Epaillard
Affiliation:
Centre d’Études Spatiales de la Biosphère (CESBIO), 18 avenue Edouard Belin, bpi 2801, 31401 Toulouse Cedex 9, France. e-mail: [email protected]
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Abstract

Present soil moisture and ocean salinity maps retrieved by remote sensing are characterized by a coarse spatial resolution. Hydrological, meteorological and climatological applications would benefit greatly from a better spatial resolution. Owing to the dimensions of the satellite structure and to the degradation of the instrument’s radiometric sensitivity, such improvement cannot be achieved with classical interferometry. Then, in order to achieve this goal an original concept for passive interferometric measurements is described. This concept should allow to achieve a much finer spatial resolution, which can be further improved with the application of disaggregation methods. The results will then allow the integration of global soil moisture maps into hydrological models, a better management of water resources at small scales and an improvement in spatial precision for various applications.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 59: New Concepts in Imaging: Optical and Statistical Models , 2013 , pp. 203 - 212
Copyright
© EAS, EDP Sciences 2013

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