Bergsma E. W. J. auteur aut IRD Almar Rafaël auteur aut IRD text journalArticle eng text/pdf born digital access Climatologic and anthropogenic pressures in coastal areas affect the coastal zone at different scales. With the development of new missions in open-access, satellites now represent an attractive solution for a broad public to capture local-scale coastal impacts at large scales. Here, the capability of the Sentinel 2 constellation to cover coastal areas and measure coastal processes -physical and biological. We show that Sentinel 2 enables high-frequency measurements across the globe. Cloud coverage at higher latitudes is overcome by decrease revisit time-intervals. Only around the equator, the longest revisit intervals and high cloud cover probability limits coastal measurements there. Sentinel 2 based methods are capable of estimating Digital Elevation Models for mid- to high-latitude coastal zones and sporadic spots for lower latitudes where 2 orbit swaths overlap. For the majority of the world's coastal bathymetries can be obtained with the Sentinel 2 imagery surpassing the depth of closure (beyond this offshore limit sediment transport is limited). Only in sheltered areas, wave-based bathymetry inversion is limited but at these areas inversion through colouring (light penetration) prevails. This works shows that Sentinel 2 enables coastal monitoring as never before, large spatial scale with revisits of a few days at most of the world. specialized Sentinel 2 Coastal areas Satellite monitoring 126 032 020 65 11 2636-2644 2020 0273-1177 https://www.documentation.ird.fr/hor/fdi:010078043 10.1016/j.asr.2020.03.001 0273-1177 [F B010078043] https://www.documentation.ird.fr/hor/fdi:010078043 https://www.documentation.ird.fr/intranet/publi/2020/06/010078043.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2020-07-02 2025-02-24 fdi:010078043 fre