Use of high resolution SAR images for modeling watershed response in semi-arid regions

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Résumé

In this paper we propose a methodology devoted to exploit high resolution radars for monitoring water bodies in semiarid countries. The proposed approach is based on appropriate registration, calibration and processing of SAR data, producing information ready to use by end-users. The obtained results were used to (i) estimate a relationship between surface and volume of water stored in reservoirs and (ii) validate a hydrological model that simulates the time evolution of water availability.

Mots-clés

Exploit, Watershed, Arid, Remote sensing, Synthetic aperture radar, Calibration, Computer science, High resolution, Radar imaging, Volume (thermodynamics), Hydrological modelling, Image resolution, Environmental science, Radar, Geology, Artificial intelligence, Computer vision, Climatology