Coastal topo-bathymetric DEM for the Gironde estuary - upstream (HOMONIM project)

The update of the coastal topo-bathymetric DEM of the Gironde estuary - upstream with a resolution of 0.0002° (~ 20 m) was carried out in the third phase of the HOMONIM project. This DEM covers the upstream part of the Gironde estuary, from Pauillac to Bordeaux on the Garonne and to Libourne on the Dordogne. It is complementary to the DEM covering the downstream estuary (between Pauillac and the mouth of the Gironde). The DEM is intended to be implemented in hydrodynamic models in order to produce forecasts as accurate as possible of water heights and sea states at the coast to improve the relevance of the Wave-Submergence Vigilance. This product is available with either the Lowest Astronomic Tide (LAT) or the Mean Sea Level (MSL) as a vertical reference.

Data and resources

Additional information

Date (revision)2022-06-13
StatusonGoing
Update frequencynotPlanned
Metadata languagefr
LicenseUtilisation libre sous réserve de citer les sources de la manière suivante : "Shom, 2022. MNT topo-bathymétrique côtier de l’estuaire de la Gironde – Amont V2.0 (Projet HOMONIM). https://dx.doi.org/10.17183/MNT_COTIER_GIRONDE_AMONT_HOMONIM_20m_WGS84"
Source metadataISO 19115 XML
Last updated2026-11-04
Created2026-11-04
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