Almeida L. P. auteur aut IRD Almar Rafaël auteur aut IRD Bergsma E. W. J. auteur aut IRD Berthier E. auteur aut IRD Baptista P. auteur aut IRD Garel E. auteur aut IRD Dada O. A. auteur aut IRD Alves B. auteur aut IRD text journalArticle eng text/pdf reformatted digital access High spatial resolution coastal Digital Elevation Models (DEMs) are crucial to assess coastal vulnerability and hazards such as beach erosion, sedimentation, or inundation due to storm surges and sea level rise. This paper explores the possibility to use high spatial-resolution Pleiades (pixel size = 0.7 m) stereoscopic satellite imagery to retrieve a DEM on sandy coastline. A 40-km coastal stretch in the Southwest of France was selected as a pilot-site to compare topographic measurements obtained from Pleiades satellite imagery, Real Time Kinematic GPS (RTK-GPS) and airborne Light Detection and Ranging System (LiDAR). The derived 2-m Pleiades DEM shows an overall good agreement with concurrent methods (RTK-GPS and LiDAR; correlation coefficient of 0.9), with a vertical Root Mean Squared Error (RMS error) that ranges from 0.35 to 0.48 m, after absolute coregistration to the LiDAR dataset. The largest errors (RMS error > 0.5 m) occurred in the steep dune faces, particularly at shadowed areas. This work shows that DEMs derived from sub-meter satellite imagery capture local morphological features (e.g., berm or dune shape) on a sandy beach, over a large spatial domain. specialized Pleiades photogrammetry LiDAR RTK-GPS beach topography FRANCE AQUITAINE ATLANTIQUE 126 064 11 5 art. 590 [11 p.] 2019 2072-4292 https://www.documentation.ird.fr/hor/fdi:010075549 10.3390/rs11050590 2072-4292 [F B010075549] https://www.documentation.ird.fr/hor/fdi:010075549 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers19-04/010075549.pdf IRD - Base Horizon / Pleins textes 2019-05-13 2025-02-24 fdi:010075549 fre