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Bathymetric datasets between 1970 and 1990

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.

Simple

Date (Revision)
2023-12-13T00:00:00
Citation identifier
http://www.shom.fr/BATHYMETRIE/LEVES_BATHY_1970-1990
Presentation form
Digital map
Credit

©Shom

Status
On going
Owner
  Shom
13 rue du Chatellier , BREST , 29200 , France
Maintenance and update frequency
Not planned
Theme
  • bathymetry

  • Product

ForM@Ter | Solid Earth Discipline ontology
  • Bathymetry
FormaTerre | Distributor
  • SHOM
Use limitation

Bathymetric Dataset are available under Open License (version 2.0 - April 2017), Etalab mission

Use limitation

Product not certified for navigation.

Use limitation

Open License (version 2.0 - April 2017), Etalab mission

Access constraints
License
Use constraints
Other restrictions
Other constraints

No public access restrictions

Classification
Unclassified
Spatial representation type
Vector
Distance
99999  metre
Language
Français
Character set
UTF8
Topic category
  • Elevation
N
S
E
W
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Begin date
1970-01-01T00:00:00
End date
1989-12-31T23:59:59
Reference system identifier
EPSG / WGS 84 (EPSG:4326) / 7.9
Distribution format
  • XYZ ASCII ( 1.0 )

Distributor
  Shom
OnLine resource
Shom geoportal ( WWW:LINK-1.0-http--link )
OnLine resource
LEVES_BATHY_1970_1990_WMSV ( OGC Web Map Service )

Bathymetric datasets between 1970 and 1990

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

Conformance result

Date (Publication)
2013-10-21
Explanation

Information sur la conformité au règlement d'interopérabilité des séries et des services de données géographiques.

Pass
No
Statement

Bathymetric datasets, collected between 1970 and 1990, are mainly acquired with single-beam echosounders. 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_1970-1990.xml XML
Metadata language
Français
Character set
UTF8
Hierarchy level
Series
Hierarchy level name

Produit

Date stamp
2024-06-12T10:24:20
Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0

Point of contact
  Shom
13 rue du Chatellier , BREST , 29200 , France
 
 

Overviews

overview
thumbnail
overview
large_thumbnail

Spatial extent

N
S
E
W
thumbnail


Keywords

Product bathymetry

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Associated resources

Not available


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