• Catalogue PIGMA
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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.

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October 27 2025 version

Simple

Date (Creation)
2023-08-08
Date (Revision)
2025-10-27
Identifier
http://www.shom.fr/BATHYMETRIE/LEVES_BATHY
Presentation form
Digital map
Credit
©Shom
Owner
  Shom
13 rue du Chatellier , BREST , 29200 , France
Maintenance and update frequency
Irregular
Theme
  • bathymetry
  • open data
  • Product
Use limitation
Data may be freely used providing that the source is mentioned as follows "Shom, 2026. https://dx.doi.org/10.17183/LEVES_BATHY". Open licence Etalab v. 2.0 avril 2017.
Use limitation
Do not use for navigation.
Use limitation
Data may be freely used providing that the source is mentioned as follows "Shom, 2026. https://dx.doi.org/10.17183/LEVES_BATHY". Open licence Etalab v. 2.0 avril 2017.
Use limitation
Do not use for navigation.
Access constraints
License
Use constraints
Other restrictions
Other constraints
Open Licence version 2.0
Access constraints
Other restrictions
Other constraints
No public access restrictions.
Classification
Unclassified
Spatial representation type
Vector
Metadata language
freFrançais
Character set
utf8 UTF8
Topic category
  • Elevation
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Begin date
1816-01-01T00:00:00
End date
2025-07-03T00:00:00
Unique resource identifier
WGS 84 (EPSG:4326)
Distribution format
  • XYZ ASCII ( 1.0 )

Distributor
  Shom
OnLine resource
Shom Geoportal ( WWW:LINK-1.0-http--link )

Shom Geoportal

OnLine resource
Shom marketplace ( WWW:LINK-1.0-http--link )

Shom marketplace

OnLine resource
Download service - Bathymetric datasets before 1970 ( WWW:LINK-1.0-http--link )

Access point / Download service

OnLine resource
Download service - Bathymetric datasets between 1970 and 1990 ( WWW:LINK-1.0-http--link )

Access point / Download service

OnLine resource
Download service - Bathymetric datasets between 1990 and 2005 ( WWW:LINK-1.0-http--link )

Access point / Download service

OnLine resource
Download service - Bathymetric datasets after 2005 ( WWW:LINK-1.0-http--link )

Access point / Download service

OnLine resource
LEVES_BATHY_AVANT_1970_WMSV ( OGC Web Map Service )

Access point / WMS Bathymetric datasets before 1970

OnLine resource
LEVES_BATHY_1970-1990_WMSV ( OGC Web Map Service )

Access point / WMS Bathymetric datasets between 1970 and 1990

OnLine resource
LEVES_BATHY_1990-2005_WMSV ( OGC Web Map Service )

Access point / WMS Bathymetric datasets between 1990 and 2005

OnLine resource
LEVES_BATHY_APRES_2005_WMSV ( OGC Web Map Service )

Access point / WMS Bathymetric datasets after 2005

OnLine resource
LEVES_BATHY_AVANT_1970_WFS:leves_bathy_avant_1970 ( OGC Web Feature Service )

Access point / WFS Bathymetric datasets before 1970

OnLine resource
LEVES_BATHY_1970-1990_WFS:leves_bathy_1970_1990 ( OGC Web Feature Service )

Access point / WFS Bathymetric datasets between 1970 and 1990

OnLine resource
LEVES_BATHY_1990-2005_WFS:leves_bathy_1990_2005 ( OGC Web Feature Service )

Access point / WFS Bathymetric datasets between 1990 and 2005

OnLine resource
LEVES_BATHY_APRES_2005_WFS:leves_bathy_apres_2005 ( OGC Web Feature Service )

Access point / WFS Bathymetric datasets after 2005

Hierarchy level
Series

Conformance result

Date (Publication)
2010-11-23
Explanation
Information sur la conformité au règlement d'interopérabilité des séries et des services de données géographiques.
Pass
Yes
Statement
Bathymetric datasets are an extraction of surveys belonging to the Shom public database. They go through a quality control before integration. Quality controls and qualification, conducted by the Shom, on these datasets are not exhaustive. Datasets may present significant uncertainties and errors may remain. From 1968, datasets are in compliance with the S-44 Standards of the International Hydrographic Organization which were in effect at the time of survey. In the Shom public database, dense datasets are decimated (typically 1m for shallow waters and 100m for deep waters).
File identifier
LEVES_BATHY.xml XML
Metadata language
freFrançais
Character set
utf8 UTF8
Hierarchy level
Series
Hierarchy level name
Collection de données
Date stamp
2026-03-24T12:34:30
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0
Point of contact
  Shom
13 rue du Chatellier , BREST , 29200 , France
 
 

Overviews

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overview
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Spatial extent

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Keywords

Product bathymetry open data

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Associated resources

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