Alexandre Cyprien auteur aut IRD Johary R. auteur aut IRD Catry Thibault auteur aut IRD Mouquet Pascal auteur aut IRD Revillion C. auteur aut IRD Rakotondraompiana S. auteur aut IRD Pennober G. auteur aut IRD text journalArticle eng text/pdf reformatted digital access In the future, climate change will induce even more severe hurricanes. Not only should these be better understood, but there is also a necessity to improve the assessment of their impacts. Flooding is one of the most common powerful impacts of these storms. Analyzing the impacts of floods is essential in order to delineate damaged areas and study the economic cost of hurricane-related floods. This paper presents an automated processing chain for Sentinel-1 synthetic aperture radar (SAR) data. This processing chain is based on the S1-Tiling algorithm and the normalized difference ratio (NDR). It is able to download and clip S1 images on Sentinel-2 tiles footprints, perform multi-temporal filtering, and threshold NDR images to produce a mask of flooded areas. Applied to two different study zones, subject to hurricanes and cyclones, this chain is reliable and simple to implement. With the rapid mapping product of EMS Copernicus (Emergency Management Service) as reference, the method confers up to 95% accuracy and a Kappa value of 0.75. specialized hurricane cyclone flood Sentinel 1 time series change detection NDR SAR 126 062 021 12 2 252 [18 ] 2020 https://www.documentation.ird.fr/hor/fdi:010077971 10.3390/rs12020252 [F B010077971] https://www.documentation.ird.fr/hor/fdi:010077971 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers20-04/010077971.pdf IRD - Base Horizon / Pleins textes 2020-05-18 2025-02-24 fdi:010077971 fre