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Acknowledgements
The authors would like to thank the personnel of ONERA for
the acquisition and the processing of the SAR data. This work
was supported by the BRGM (French Geological Survey),
ONERA (French Aerospace Research Centre), CETP (French
Centre for the Study of Earth and Planet Environments), INRA
(French National Agronomic Research Institute) and the PNTS
(National Remote Sensing Program).
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