Coastal topo-bathymetric DEM for the Gironde estuary - upstream (HOMONIM project) - MSL

The update of the coastal topo-bathymetric DEM of the Gironde estuary - upstream with a resolution of 0.0002° (~ 20 m) was carried out in the third phase of the HOMONIM project.

This DEM covers the upstream part of the Gironde estuary, from Pauillac to Bordeaux on the Garonne and to Libourne on the Dordogne. It is complementary to the DEM covering the downstream estuary (between Pauillac and the mouth of the Gironde).

The DEM is intended to be implemented in hydrodynamic models in order to produce forecasts as accurate as possible of water heights and sea states at the coast to improve the relevance of the Wave-Submergence Vigilance.

The vertical reference for this product is Mean Sea Level (MSL).

 
Citation proposal
Shom Shom . Coastal topo-bathymetric DEM for the Gironde estuary - upstream (HOMONIM project) - MSL. https://services.data.shom.fr:/geonetwork/srv/api/records/MNT_COTIER_GIRONDE_AMONT_HOMONIM_20m_WGS84_ZNEG_NM.xml

Simple

Date ( Revision )
2022-06-13
Edition

Edition 2.0

Identifier

http://www.shom.fr/BATHYMETRIE/MNT_COTIER_GIRONDE_AMONT_HOMONIM_20m_WGS84_ZNEG_NM

Presentation form
Digital map
Credit

©Shom

Status
On going

  Author

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

  • Bathymetry

  • Digital Elevation Model

  • Open data

Keywords ( Place )

  • Golfe de Gascogne

  • Atlantique

Keywords ( Discipline )

  • Geophysic

Use limitation

Data may be freely used providing that the source is mentioned as follows : "Shom, 2022. MNT topo-bathymétrique côtier de l’estuaire de la Gironde – Amont V2.0 (Projet HOMONIM). http://dx.doi.org/10.17183/MNT_GIR-AMONT20m_HOMONIM_WGS84_V2.0 "

Use limitation

Do not use for navigation

Use limitation

Data may be freely used providing that the source is mentioned as follows : "Shom, 2022. MNT topo-bathymétrique côtier de l’estuaire de la Gironde – Amont V2.0 (Projet HOMONIM). http://dx.doi.org/10.17183/MNT_GIR-AMONT20m_HOMONIM_WGS84_V2.0 "

Use limitation

Do not use for navigation

Access constraints
License
Use constraints
Other restrictions
Other constraints

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

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
French
Character set
UTF8
Topic category
  • Elevation
N
S
E
W


Vertical extent

Minimum value
-19.43
Maximum value
88.19

Vertical CS

No information provided.

Vertical datum

No information provided.
Unique resource identifier
WGS 84 (EPSG:4326)
Number of dimensions
2
Dimension name
Row
Dimension size
1894
Resolution
0.0002  dd
Dimension name
Column
Dimension size
2770
Resolution
0.0002  dd
Cell geometry
Area
Transformation parameter availability
false
Distribution format

  • ArcGis Grid

    (

    inapplicable

    )

  • BAG

    (

    inapplicable

    )

  • GLZ

    (

    inapplicable

    )

  • GRD

    (

    inapplicable

    )

  Distributor

OnLine resource
Shom geoportal  

Shom geoportal

OnLine resource
MNT_COTIER_GIRONDE_AMONT_HOMONIM_20m_PBMA_4326_WMSR  

Access point / WMS DEM LAT

OnLine resource
Download service MSL  
OnLine resource
Shom distribution space  

Shom distribution space to download DEMs

Hierarchy level
Dataset

Conformance result

Date ( Publication )
2013-12-10
Explanation

Information on compliance with INSPIRE specifications for the Altitude theme.

Pass
true

Conformance result

Date ( Publication )
2010-11-23
Explanation

Information on compliance with the Geographic Data Sets and Services Interoperability Regulation.

Pass
true
Statement

In addition to the Shom data, the surveys of external organisms have been used, with the following contributors :

IGN (RGEALTI® V2.0)

Grand Port Maritime de Bordeaux

Description

The main production tasks of this product line are based on 4 major axes each aiming at reducing the DTM uncertainties:

1) the collection, evaluation, pre-processing, and selection of data from multiple sources whose acquisition is from different sensors and time periods;

2) homogenization of the vertical and horizontal reference of the data sets;

3) the use of interpolation algorithms adapted to the heterogeneous distribution and variable density of the data, and

4) the evaluation and qualification of the final product and the elaboration of its documentation

Metadata

File identifier
MNT_COTIER_GIRONDE_AMONT_HOMONIM_20m_WGS84_ZNEG_NM.xml   XML
Metadata language
French
Character set
UTF8
Parent identifier

MNT_COTIER_GIRONDE_AMONT_HOMONIM_20m_WGS84.xml

Hierarchy level
Dataset
Date stamp
2023-06-29T14:07:30
Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0

  Point of contact

 
 

  Overviews


Provided by

Access to the portal

Associated resources

Not available