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.mspdata.eu:/geonetwork/srv/api/records/LEVES_BATHY_AVANT_1970.xml

Simple

Date ( Revision )
2023-08-08T00:00:00
Identifier
http://www.shom.fr/BATHYMETRIE/LEVES_BATHY_AVANT_1970
Presentation form
Digital map
Credit
©Shom
Status
On going

  Owner

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


Time period
1816-01-01T00:00:001969-12-31T23:59:59
Reference system identifier
EPSG / WGS 84 (EPSG:4326) / 7.9
Distribution format
  • XYZ ASCII (1.0 )

  Distributor

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.

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

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