• Catalogue Shom
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  wave model of evolution of sea state

Wave forecasting models allow the representation of sea states based on a spectral resolution at the global scale or at the scale of ocean basins. This code calculates the evolution of the sea state by decomposing it into a wave spectrum that propagates in different directions and with different periods. During the propagation, the wave energy is increased or decreased by the effects of wind, breaking waves and energy exchanges between the different components.

The wave forecasts available on data.shom.fr are calculated with 2 different types of models: MFWAM for the offshore domain (resolution from 0.5° to 0.1°) and Wavewatch III ® (WW3) for the coastal domain (resolution from 2min to 200m).

MFWAM is a sea state forecasting model (wind wave and swell) derived from the third generation WAM code (WAMDI Group, 1988).

Wavewatch III ® (WW3) is developed in a collaboration between the United States Weather Service (NOAA/NCEP), Shom, the University of Darmstadt in Germany, and other partners. The forecasts published on data.shom.fr are issued from the parameterization carried out and optimized by the Shom and Météo-France within the framework of the Homonim project (national coastal flood/wave/storm warning system).

 
Citation proposal
(2017) . wave model of evolution of sea state. https://services.data.shom.fr:/geonetwork/cache/api/records/OCEANO_MODELE_VAGUES.xml
 

Simple

Date ( Publication )
2017-02-21
Edition
Identifier

http://www.shom.fr/OCEANO/MODELE_VAGUES

Credit

Shom et Météo-France

  Point of contact

Shom  

13 rue du Chatellier

BREST

29200

France


Maintenance and update frequency
Daily
Update scope
Dataset
Keywords ( Theme )
  • model

  • oceanography

  • wave

  • Produit

  • product

GEMET - INSPIRE themes, version 1.0 ( Theme )
  • Oceanographic geographical features
INSPIRE Spatial scope
  • Nationales
High-value dataset categories
  • Observation de la terre et environnement
Use limitation

forecasts released under the Open License version 2.0 of April 2017, defined by the Etalab mission.

Use limitation

free use allowed on condition that the source is acknowledged and the last udate date is given.

Use limitation

MFWAM/WW3 wave forecasts (Météo-France, Shom) are released under the Open License version 2.0 of April 2017, defined by the Etalab mission.

Access constraints
License
Use constraints
Other restrictions
Other constraints

Open License version 2.0 of April 2017, defined by the Etalab mission.

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


Supplemental Information

The size of the model domains considered often requires the use of relatively loose meshes (generally from 1° to 0.25°) in order to keep acceptable the computation time. A succession of nested models allows to reach finer resolutions, from the global scale to the regional scale (a few kilometers) and the local scale (a few hundred meters). Another technique to reach high resolutions at the coast while avoiding model nesting is the use of unstructured grids.

The models are regularly compared with observations made by the in-situ wave buoy networks (Cerema).

Attributes: sea surface wave peak direction, wave peak frequency, significant height of wind and swell waves,significant height of wind and swell waves, wave from direction partition 0, wave from direction partition 1, significant wave height partition 0, significant wave height partition 1, dominant wave period partition 0, dominant wave period partition 1

Distribution format
  • NetCDF

    (

    4

    )

  Point of contact

Shom  

OnLine resource
Portail d'information géographique du Shom  
OnLine resource
Access point / WMS  

Access point / WMS

Hierarchy level
Series

Conformance result

Date ( Publication )
2010-11-23
Explanation

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

Pass
true

Conformance result

Date ( Publication )
2013-12-10
Explanation

Information sur la conformité de la ressource à une spécification (INSPIRE).

Pass
true
Statement

The wave model outputs available on data.shom.fr provide for each run wave forecasts from day D to day D+2/D+3/D+4, depending on the configuration:

- GLOB05: MFWAM model, global 0.5° resolution grid, forced by the ECMWF IFS-ECMWF weather model

- EURAT01: MFWAM model, European 0.1° resolution grid, forced by the Météo-France ARPEGE weather model

- ANGUY01: MFWAM model, 0.1° resolution grid for Antilles-Guyane area (from the GLOB0125 grid), forced by the ECMWF IFS-CEP weather model

- MASCA01: MFWAM model, 0.1° resolution grid for Indian Ocean area, forced by the Météo-France AROME Outre-Mer weather model supplemented by the IFS-ECMWF model

- NORGAS-UG, MENOR-UG, ANGUY-CG and INDIEN-UG: irregular-mesh grid from the WW3 model, with a resolution ranging from 10km offshore to 200m at the coast. On data.shom.fr, these irregular grids are reprojected onto regular grids with different resolutions: 2min, 500m and 200m. The more closer to the coast the area is, the more refined the resolution (for example: NORGAS-2MIN -> MANCHE-NORD-500M -> NORMANDIE-200M). For metropolitan France, WW3 is forced by the Météo-France ARPEGE weather model; in the Antilles-Guyane and the Réunion-Mayotte areas WW3 is forced by the Météo-France AROME Outre-Mer model.

The "time" variable refers to the data in terms of its validity date: it is expressed in Julian days elapsed since 1st January 1990 at 00:00:00.

gmd:MD_Metadata

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

Collection de données

Date stamp
2014-07-25T14:56:54
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

  Views

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

  Associated resources

Not available


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