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Apport de l'observation satellitaire à l'hydrologie continentale
Author(s) -
Sylvain Biancamaria,
Yann Kerr
Publication year - 2017
Publication title -
la météorologie
Language(s) - French
Resource type - Journals
eISSN - 2107-0830
pISSN - 0026-1181
DOI - 10.4267/2042/62169
Subject(s) - humanities , geography , forestry , art
EnglishOver the last decades, an increasing number of satellite missions has helped to observe the spatial and temporal variabilities of continental waters (surface water, surface snow, soil moisture, etc.). These observations helped to better understand water fluxes within river basins and their coupling with the atmosphere and oceans. They also contributed to improve flood forecasting, prevent natural hazards and track geomorphological changes in water bodies. Future satellite missions, with improved measurement accuracy and temporal sampling, will become essential tools for water resources management. francaisDepuis plusieurs decennies, un nombre croissant de satellites observe la variabilite spatio-temporelle de plusieurs compartiments des eaux continentales (eaux libres, manteau neigeux, humidite du sol...). Ces observations ont permis de mieux comprendre les echanges d'eau au sein des bassins fluviaux et le couplage avec l'atmosphere et les oceans. Elles ont aussi contribue a ameliorer les previsions d'inondation, la prevention de risques naturels et le suivi de l'evolution geomorphologique des zones en eau. Les futures missions spatiales, en ameliorant la precision et la recurrence des mesures, deviendront un outil incontournable pour gerer les ressources en eau.

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