In the framework of an open call Science4society funded by ESA, researchers at CESBIO have implemented a surface water detection algorithm from radar data Sentinel-1 on a cloud computing system. An API developed by Geomatys and JeoBrowser, two IT companies in France, is used to send the resulting surface water masks to a smartphone App named ForEarth, which display the surface water fluctuation in time for Indian regions.
The beta version is available on PlayStore and displays statistics and water masks for the Hyderabad region, Telangana, India.
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Si vous avez vu le JT du 26 mars dernier, vous savez que le lac de Serre-Ponçon est à un niveau exceptionnellement bas en ce moment .
Extrait du journal 12/13 de France 3 du 26/03/2018
These Sentinel-2 images show the extent of the recent flooding near the border between Arkansas and Missouri on Apr 24, 2017 (36°30'N 90°38'W). The left image is a natural color composite (similar to what our eyes could see if we were in orbit). The right image is a color representation of the Normalized Difference Water Index (NDWI).