• Guyane-SIG
  •  
  •  
  •  

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.

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
  Shom
13 rue du Chatellier , BREST , 29200 , France
Maintenance and update frequency
Not planned
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
Français
Character set
UTF8
Topic category
  • Elevation
N
S
E
W
thumbnail


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 ( WWW:LINK-1.0-http--link )
OnLine resource
LEVES_BATHY_AVANT_1970_WMSV ( OGC Web Map Service )

Bathymetric datasets before 1970

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 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.
File identifier
LEVES_BATHY_AVANT_1970.xml XML
Metadata language
Français
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
 
 

Overviews

overview
thumbnail
overview
large_thumbnail

Spatial extent

N
S
E
W
thumbnail


Keywords

Product bathymetry

Provided by

logo

Share on social sites

Access to the portal
Read here the full details and access to the data.

Associated resources

Not available


  •  
  •  
  •