Bathymetric datasets

Bathymetric datasets are an extraction of surveys belonging to the Shom public database. For depth up to 50m, the vertical precision of soundings varies from 30cm to 1m and the horizontal precision varies from 1 to 20m. In deep ocean, the vertical precision is mainly around 1 or 2% of the bottom depth. It is sometimes more, it depends on the technology used. The data are referenced to ZH which is assimilated to LAT. Data are corrected for sound velocity variations. <br /> October 27 2025 version

Data and resources

Additional information

Temporal extent1816-01-01 – 2025-07-03
Date (creation)2023-08-08
Date (revision)2025-10-27
StatusonGoing
Update frequencyirregular
Metadata languagefr
LicenseUtilisation libre sous réserve de citer les sources de la manière suivante : "Shom, 2026. https://dx.doi.org/10.17183/LEVES_BATHY". Licence Ouverte (version 2.0 d'avril 2017), définie par la mission Etalab.
Source metadataISO 19115 XML
Last updated2026-11-04
Created2026-11-04
APIpackage_show