Coastal topo-bathymetric DTM of the Arcachon basin and its surroundings (HOMONIM Project)
The coastal topo-bathymetric DTM of the Arcachon basin and its surroundings at a resolution of 0.0002° (~ 20 m) was produced as part of the HOMONIM project. The DTM covers the coastline of a part of the Gironde department, from the Carcans and Hourtin ponds in the North, to the Cazaux and Sanguinet lakes in the South. It covers the entire Arcachon basin and extends offshore to about 40 m depth. The DTM is intended to be implemented in hydrodynamic models in order to produce accurate forecasts of water heights and sea states at the coast and to improve the French storm surge warning system. This product is available with the Lowest Astronomic Tide (LAT) or with the Mean Sea Level (MSL) as a vertical datum.
Data and resources
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Portail d'information géographique du ShomHTML Open
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Access point / WMS MNT PBMAWMS Open
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HTML Open
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HTML Open
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Espace de diffusion du ShomHTML Open
Additional information
| Date (creation) | 2022-06-13 |
|---|---|
| Status | onGoing |
| Update frequency | notPlanned |
| Metadata language | fr |
| License | Utilisation libre sous réserve de citer les sources de la manière suivante : "SHOM,2022. MNT topo-bathymétrique côtier du bassin d'Arcachon et ses abords (projet HOMONIM) http://dx.doi.org/10.17183/MNT_COTIER_ARCACHON_HOMONIM_20m_WGS84." |
| Source metadata | ISO 19115 XML |
| Last updated | 2026-11-04 |
| Created | 2026-11-04 |
| API | package_show |