Tidal Stream Atlas in netcdf format - Western Brittany - Pack

The Tidal stream atlas netcdf product – Western Brittany provides tidal current data for an area stretching from the northern coast of Brittany (Porsguen) to the south of Penmarc'h. The product consists of four gridded files with different spatial resolutions covering the Finistère area (overall view at 500 m) and the geographical areas of the Iroise Sea (250 m), Brest bay (100 m) and Brest harbour (30 m). The U and V velocities of the tidal currents depend on the tidal conditions considered at mean neap and spring tidal rates. The data are provided in m/s for the surface layer. The times are given in relation to high tide at the reference port chosen in the area and are provided from 6 hours before to 6 hours after that reference.

 
Citation proposal
. Tidal Stream Atlas in netcdf format - Western Brittany - Pack. https://services.data.shom.fr:/geonetwork/srv/api/records/ATLASDYN-SURF_TELEMAC3D-SURF_FINISTERE_PACK.xml

Simple

Date ( Creation )
2026-06-01
Edition

Edition 2026

Identifier

http://www.shom.fr/COURANTS/ATLASDYN-SURF_TELEMAC3D-SURF_FINISTERE_PACK

Credit

©Shom

  Owner

Maintenance and update frequency
Irregular
Keywords ( Theme )

  • model

  • oceanography

  • currents

  • tide

  • tidal currents

  • open data

  • Product

Use limitation

Data may be freely used providing that the source is mentioned as follows "Shom, 2026. 2D tidal current atlas in netcdf format, https://dx.doi.org/10.17183/ATLASCOURANTS2D_NETCDF ". Open licence Etalab v. 2.0 avril 2017.

Use limitation

To be used only in addition to official nautical charts and publications.

Use limitation

Data may be freely used providing that the source is mentioned as follows "Shom, 2026. 2D tidal current atlas in netcdf format, https://dx.doi.org/10.17183/ATLASCOURANTS2D_NETCDF ". Open licence Etalab v. 2.0 avril 2017.

Use limitation

To be used only in addition to official nautical charts and publications.

Access constraints
License
Use constraints
Other restrictions
Other constraints
Licence Ouverte version 2.0 Open Licence version 2.0
Access constraints
Other restrictions
Other constraints
Pas de restriction d'accès public. No public access restrictions.
Classification
Unclassified
Spatial representation type
Grid
Metadata language
French
Character set
UTF8
Topic category
  • Oceans
N
S
E
W


Unique resource identifier
WGS 84 (EPSG:4326)
Distribution format

  • NetCDF4 - CF convention V1.8

    (

    4

    )

  • 7z

    (

    9.20

    )

  Distributor

OnLine resource
Shom Geoportal  

Shom Geoportal

OnLine resource
Shom marketplace  

Shom marketplace

OnLine resource
Download service - Tidal Stream Atlas in netcdf format - Western Brittany  

Access point / Download service

Hierarchy level
Dataset
Statement

The Tidal stream atlas netcdf product – Western Brittany is the result of using a high-resolution hydrodynamic model implemented by Shom in the Iroise Sea.

For an average neap tide and spring tide with tidal coefficients of 45 and 95 respectively, it contains numerical data of surface tidal currents over a tidal cycle sampled every 5 minutes. The product, provided on a regular grid, is available in netcdf-CF format at different resolutions (500 m, 250 m,100 m and 30 m) and on different areas (Finistère, zoom on the Iroise Sea, Brest Bay and Brest harbour).

Metadata

File identifier
ATLASDYN-SURF_TELEMAC3D-SURF_FINISTERE_PACK.xml   XML
Metadata language
French
Character set
UTF8
Parent identifier

ATLASDYN-SURF_TELEMAC3D-SURF_FINISTERE.xml

Hierarchy level
Dataset
Hierarchy level name

Jeu de données

Date stamp
2026-06-11T15:33:37
Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0

  Point of contact

 
 

  Overviews


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Associated resources

Not available