Coastal topobathymetric DEM of Ré Island's surroundings

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The coastal topobathymetric DEM of Ré Island's surroundings, with a resolution of 0.00005° (~5 meters), was created by Shom as part of the HOMONIM-3 project. It covers the coast of the municipalities of Ars-en-Ré and Saint-Clément-des-Baleines, extending offshore to a depth of about 20 meters, to the west of the Phare des Baleines lighthouse. This DEM is designed for use in hydrodynamic models to enhance the modeling of coastal processes, particularly forecasting submersion risk. The product complements the coastal topobathymetric DEM of the Pertuis-Charentais, with a resolution of 0.0002° (~20 meters), and the bathymetric DEM of the Atlantic coast, with a resolution of 0.001° (~100 meters). It is available in the vertical reference of the Lowest Astronomical Tide (LAT) or the Mean Sea Level (MSL).

Data and resources

Portail d'information géographique du Shom

Portail d'information géographique du Shom

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MNT_COTIER_ILE_DE_RE_5m_PBMA_3857_WMSR

Access point / WMS MNT PBMA

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Service de téléchargement du MNT référencé PBMA

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Service de téléchargement du MNT référencé NM

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Espace de diffusion du Shom

Espace de diffusion pour télécharger les MNT

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Additional information

Date (revision)	2024-05-17
Status	onGoing
Update frequency	notPlanned
Metadata language	fr
License	Utilisation libre sous réserve de citer les sources de la manière suivante : "Shom, 2024. MNT topo-bathymétrique côtier des abords de l’île de Ré (Projet HOMONIM). http://dx.doi.org/10.17183/MNT_COTIER_ILE_DE_RE_HOMONIM_5m_WGS84"
Source metadata	ISO 19115 XML
Last updated	2026-11-04
Created	2026-11-04
API	package_show