• Catalogue Shom
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  Coastal topo-bathymetric DEM for the Morbihan (TANDEM project)

The coastal topo- bathymetric DEM for the coasts of Morbihan with a resolution of 0.0002° (~ 20 m) was prepared as part of the TANDEM project (Programme Investissements d'Avenir, ANR-11-RSNR-00023-01).

It covers the French administrative department of Morbihan and part of Loire-Atlantique. This DEM runs from the Gâvres peninsula in the north west to La Baule in the south east and covers the Gulf of Morbihan, the Quiberon bay and peninsula, Houat, Hoëdic and Belle-Ile islands and the Vilaine estuary.

The DEM is designed to be implemented in the hydrodynamic models of the TANDEM project in order to estimate the coastal effects of tsunamis for the Atlantic and English Channel, where French nuclear power plants have been installed for about 30 years.

This product is available with the Lowest Astronomic Tide (LAT) or the Mean Sea Level (MSL) as a vertical datum.

 
Citation proposal
. Coastal topo-bathymetric DEM for the Morbihan (TANDEM project). https://services.data.shom.fr:/geonetwork/WS/api/records/MNT_COTIER_MORBIHAN_TANDEM_20m_WGS84.xml
 

Simple

Date ( Creation )
2015-10-19T00:00:00
Identifier

http://www.shom.fr/BATHYMETRIE/MNT_COTIER_MORBIHAN_TANDEM_20m_WGS84

Presentation form
Digital map
Credit

©Shom

Status
On going

  Owner

Shom  

13 rue du Chatellier

Brest

29200

France


Maintenance and update frequency
Not planned
GEMET - INSPIRE themes, version 1.0 ( Theme )
  • Elevation

Keywords ( Theme )
  • topography

  • bathymetry

  • digital elevation model

  • Product

  • open data

Keywords ( Place )
  • Golfe de Gascogne

  • Atlantique

Keywords ( Discipline )
  • Geophysic

High-value dataset categories
  • Observation de la terre et environnement
Use limitation

Data may be freely used providing that the source is mentioned as follows "Shom,2015.MNT topo-bathymétrique côtier de la zone "Morbihan" à 20m (Projet TANDEM). http://dx.doi.org/10.17183/MNT_COTIER_MORBIHAN_TANDEM_20m_WGS84"

Use limitation

Data may not be modified or distributed without the agreement of the distributor.

Use limitation

Do not use for navigation

Use limitation

The product is distributed under an Opendata license (version 2.0, April 2017), defined by the Etalab mission.

Use limitation

Data may not be modified or distributed without the agreement of the distributor.

Access constraints
Other restrictions
Use constraints
License
Other constraints

Data may be freely used providing that the source is mentioned as follows "Shom,2015.MNT topo-bathymétrique côtier de la zone "Morbihan" à 20m (Projet TANDEM). http://dx.doi.org/10.17183/MNT_COTIER_MORBIHAN_TANDEM_20m_WGS84"

Access constraints
Other restrictions
Other constraints
Pas de restriction d'accès public. No public access restrictions.
Classification
Unclassified
Spatial representation type
Grid
Distance
0.0002  dd
Metadata language
fre French
Character set
utf8 UTF8
Topic category
  • Elevation
N
S
E
W


Vertical extent

Minimum value
-81.92
Maximum value
90.16

Vertical CS

No information provided.

Vertical datum

No information provided.

Vertical extent

Minimum value
-79.09
Maximum value
93.52

Vertical CS

No information provided.

Vertical datum

No information provided.
Reference system identifier

EPSG

/

WGS 84 (EPSG:4326)

/

7.9

Number of dimensions
2
Dimension name
Row
Dimension size
2626
Resolution
0.0002  dd
Dimension name
Column
Dimension size
4834
Resolution
0.0002  dd
Cell geometry
Area
Transformation parameter availability
false
Distribution format
  • ArcGis Grid

    (

    -

    )

  • BAG

    (

    -

    )

  • GLZ

    (

    -

    )

  • GRD

    (

    -

    )

  Distributor

Shom  

OnLine resource
Shom geoportal  
OnLine resource
MNT_COTIER_MORBIHAN_TANDEM_20m_PBMA_3857_WMSR  

Bathymetric DEM Morbihan raster WMS

OnLine resource
Download service LAT  
OnLine resource
Download service MSL  
OnLine resource
Shom distribution space  
Hierarchy level
Dataset

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

In addition to the Shom data, the surveys of external organisms have been exploited, the contributors of which are as follows: IGN, DDE Morbihan, Institution d'Aménagement de la Vilaine, Port Atlantique-Nantes-Saint-Nazaire, Syndicat Mixte de la Ria d'Etel.

Description

The main tasks involved in producing this range of solutions are based on 4 key aspects, each intended to reduce uncertainty for the DEM:

1) collecting, evaluating, pre-processing and selecting data from multiple sources after acquisition using survey systems from various eras;

2) homogenising the vertical and horizontal datums for data sets;

3) using interpolation algorithms suitable for a heterogeneous distribution and the variable density of data, and

4) evaluating and qualifying the final product and preparing documentation.

gmd:MD_Metadata

File identifier
MNT_COTIER_MORBIHAN_TANDEM_20m_WGS84.xml   XML
Metadata language
French
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2015-11-03T09:36:02
Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0

  Point of contact

Shom  

13 rue du Chatellier - CS 92803

BREST

29228

France


 
 

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MNT_COTIER_MORBIHAN_TANDEM_20m_WGS84.xml   Access to the portal Read here the full details and access to the data.

  Associated resources

Not available


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