• Catalogue Shom
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  Bathymetric datasets before 1970

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.

 
Citation proposal
. Bathymetric datasets before 1970. https://services.data.shom.fr:/geonetwork/srv/api/records/LEVES_BATHY_AVANT_1970.xml
 

Simple

Date ( Revision )
2023-12-13T00:00:00
Identifier

http://www.shom.fr/BATHYMETRIE/LEVES_BATHY_AVANT_1970

Presentation form
Digital map
Credit

©Shom

Status
On going

  Owner

Shom  

13 rue du Chatellier

BREST

29200

France


Maintenance and update frequency
Not planned
Keywords ( Theme )
  • bathymetry

  • Open data

  • Product

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
Metadata language
French
Character set
UTF8
Topic category
  • Elevation
N
S
E
W


Begin date
1816-01-01T00:00:00
End date
1969-12-31T23:59:59
Reference system identifier

EPSG

/

WGS 84 (EPSG:4326)

/

7.9

Distribution format
  • XYZ ASCII

    (

    1.0

    )

  Distributor

Shom  

OnLine resource
Shom geoportal  
OnLine resource
LEVES_BATHY_AVANT_1970_WMSV  

Bathymetric datasets before 1970

OnLine resource
Shom marketplace  
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
false
Statement

Bathymetric datasets, collected before 1970, are historical surveys acquired with leadlines (and single-beam echosounders after 1930-1940). 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.

gmd:MD_Metadata

File identifier
LEVES_BATHY_AVANT_1970.xml   XML
Metadata language
French
Character set
UTF8
Hierarchy level
Series
Hierarchy level name

Produit

Date stamp
2024-06-12T10:24:19
Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0

  Point of contact

Shom  

13 rue du Chatellier

BREST

29200

France


 
 

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  Provided by

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  • INSPIRE
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  • XML
LEVES_BATHY_AVANT_1970.xml   Access to the portal Read here the full details and access to the data.

  Associated resources

Not available


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