FormaTerre
Coastal topo-bathymetric DEM for the Gironde estuary - downstream (HOMONIM project)
The update of the coastal topo-bathymetric DEM of the Gironde estuary - downstream with a resolution of 0.0002° (~ 20 m) was carried out in the third phase of the HOMONIM project.
This DEM covers the downstream part of the Gironde estuary, from Pauillac to its mouth. It is complementary to the DEM covering the upstream estuary.
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.
This product is available with either the Lowest Astronomic Tide (LAT) or the Mean Sea Level (MSL) as a vertical reference.
Simple
- Date (Revision)
- 2022-06-13
- Edition
-
Edition 2.0
- Citation identifier
- http://www.shom.fr/BATHYMETRIE/MNT_COTIER_GIRONDE_AVAL_HOMONIM_20m_WGS84
- Presentation form
- Digital map
- Credit
-
©Shom
- Status
- On going
- Maintenance and update frequency
- Not planned
- Theme
-
-
Bathymetry
-
Digital Elevation Model
-
Open data
-
Product
-
- Place
-
-
Golfe de Gascogne
-
Atlantique
-
- 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 – Aval V2.0 (Projet HOMONIM). http://dx.doi.org/10.17183/MNT_COTIER_GIRONDE_AVAL_HOMONIM_20m_WGS84 "
- 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 – Aval V2.0 (Projet HOMONIM). http://dx.doi.org/10.17183/MNT_COTIER_GIRONDE_AVAL_HOMONIM_20m_WGS84 "
- 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
- No public access restrictions.
- Classification
- Unclassified
- Spatial representation type
- Grid
- Distance
- 0.0002 dd
- Language
- Français
- Character set
- UTF8
- Topic category
-
- Elevation
))
Vertical extent
- Minimum value
- -49.9
- Maximum value
- 70.9
Vertical CS
Vertical datum
Vertical extent
- Minimum value
- -52.34
- Maximum value
- 68.61
Vertical CS
Vertical datum
- Unique resource identifier
- WGS 84 (EPSG:4326)
- Number of dimensions
- 2
- Dimension name
- Row
- Dimension size
- 2826
- Resolution
- 0.0002 dd
- Dimension name
- Column
- Dimension size
- 4251
- Resolution
- 0.0002 dd
- Cell geometry
- Area
- Transformation parameter availability
- No
- Distribution format
-
-
ArcGis Grid
(
inapplicable
)
-
BAG
(
inapplicable
)
-
GLZ
(
inapplicable
)
-
GRD
(
inapplicable
)
-
ArcGis Grid
(
inapplicable
)
- OnLine resource
-
Shom geoportal
(
WWW:LINK-1.0-http--link
)
Shom geoportal
- OnLine resource
- MNT_COTIER_GIRONDE_AVAL_HOMONIM_20m_PBMA_4326_WMSR ( OGC Web Map Service )
- OnLine resource
- Download service LAT ( WWW:DOWNLOAD-1.0-http--download )
- OnLine resource
- Download service MSL ( WWW:DOWNLOAD-1.0-http--download )
- OnLine resource
-
Shom distribution space
(
WWW:LINK-1.0-http--link
)
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
- Yes
Conformance result
- Date (Publication)
- 2010-11-23
- Explanation
-
Information on compliance with the Geographic Data Sets and Services Interoperability Regulation.
- Pass
- Yes
- 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
DDTM de Charente-Maritime
- 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
- File identifier
- MNT_COTIER_GIRONDE_AVAL_HOMONIM_20m_WGS84.xml XML
- Metadata language
- Français
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2023-06-29T14:09:25
- Metadata standard name
-
ISO 19115:2003/19139
- Metadata standard version
-
1.0
Overviews
Spatial extent
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