Bathymetric DEM for the coasts of Mayotte (Project Homonim)

The bathymetric DEM for the coasts of Mayotte with a resolution of 0.001° (~ 100 m) was prepared as part of the HOMONIM project.

It covers the entire island of Mayotte and extends to Anjouan island in the west. The model ranges off-shore to a depth of 3700 m.

The DEM is designed to be used in hydrodynamic models in order to produce high-precision forecasts for coastal water levels and sea conditions and therefore improve the pertinence of the Waves-Submersion monitoring programme.

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

Simple

Date (Creation)
2015-09-09T00:00:00
Citation identifier
http://www.shom.fr/BATHYMETRIE/MNT_MAY100m_HOMONIM_WGS84
Presentation form
Digital map
Credit

©Shom
Status
On going
Point of contact
Organisation name Individual name Electronic mail address Role

Shom

bps@shom.fr

Owner
Maintenance and update frequency
Not planned

GEMET - INSPIRE themes, version 1.0

  • Elevation
Theme

  • bathymetry

  • digital elevation model

  • Product

  • open data
Place

  • Mayotte

  • Indian Ocean
Discipline

  • Geophysic
INSPIRE Spatial scope
Use limitation

Data may be freely used providing that the source is mentioned as follows "Shom,2016. MNT Bathymétrique de façade de Mayotte (Projet Homonim). http://dx.doi.org/10.17183/MNT_MAY100m_HOMONIM_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
License
Use constraints
Other restrictions
Other constraints

Data may be freely used providing that the source is mentioned as follows "Shom,2016. MNT Bathymétrique de façade de Mayotte (Projet Homonim). http://dx.doi.org/10.17183/MNT_MAY100m_HOMONIM_WGS84 ".

Access constraints
Other restrictions
Other constraints
No public access restrictions.
Classification
Unclassified
Spatial representation type
Grid
Distance
0.001  dd
Language
Français
Character set
UTF8
Topic category
  • Elevation
N
S
E
W
thumbnail


Vertical extent

Minimum value
-3670
Maximum value
30

Vertical CS

Vertical datum

Extent

Description

World.
N
S
E
W
thumbnail


thumbnail

Vertical extent

Minimum value
-3670
Maximum value
32

Vertical CS

Vertical datum

Extent

Description

World.
N
S
E
W
thumbnail


thumbnail

Reference system identifier
EPSG / WGS 84 (EPSG:4326) / 7.9
Number of dimensions
2
Dimension name
Row
Dimension size
1251
Resolution
0.001  dd
Dimension name
Column
Dimension size
1251
Resolution
0.001  dd
Cell geometry
Area
Transformation parameter availability
No
Distribution format
Name Version

ArcGis Grid

-

BAG

-

GLZ

-

GRD

-
Distributor contact
Organisation name Individual name Electronic mail address Role

Shom

data-support@shom.fr

Distributor
OnLine resource
Protocol Linkage Name

WWW:LINK-1.0-http--link

 		https://data.shom.fr/

Shom geoportal

OGC:WMS

 		https://services.data.shom.fr/INSPIRE/wms/r?service=WMS&request=GetCapabilities&version=1.3.0

MNT_MAY100m_HOMONIM_PBMA_PYR_PNG_3857_WMSR

WWW:LINK-1.0-http--link

 		https://services.data.shom.fr/INSPIRE/telechargement/prepackageGroup/MNT_MAY100m_HOMONIM_PACK_DL/prepackage/MNT_FACADE_MAYOTTE_HOMONIM_PBMA/file/MNT_FACADE_MAYOTTE_HOMONIM_PBMA.7z

Download service LAT

WWW:LINK-1.0-http--link

 		https://services.data.shom.fr/INSPIRE/telechargement/prepackageGroup/MNT_MAY100m_HOMONIM_PACK_DL/prepackage/MNT_FACADE_MAYOTTE_HOMONIM_NM/file/MNT_FACADE_MAYOTTE_HOMONIM_NM.7z

Download service MSL

WWW:LINK-1.0-http--link

 		https://diffusion.shom.fr/produits/bathymetrie/mnt-facade-mayotte.html

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
Yes

Conformance result

Date (Publication)
2013-12-10
Explanation

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

In addition to the Shom data, the surveys of external organisms have been exploited, the contributors of which are as follows:

BRGM, General Council of Mayotte, NCEI, Scripps Institution of Oceanography
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.

Metadata

File identifier
MNT_MAY100m_HOMONIM_WGS84.xml XML
Metadata language
Français
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2019-06-04T17:43:33
Metadata standard name

ISO 19115:2003/19139
Metadata standard version

1.0
Metadata author
Organisation name Individual name Electronic mail address Role

Shom

data-support@shom.fr

Point of contact
Other language
Language Character encoding
English UTF8
 
 

Overviews

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overview
large_thumbnail

Spatial extent

thumbnail

Keywords

Geophysic Product bathymetry digital elevation model open data
GEMET - INSPIRE themes, version 1.0
Elevation

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Not available