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.

 
Citation proposal
. Bathymetric DEM for the coasts of Mayotte (Project Homonim). https://services.data.shom.fr:/geonetwork/srv/api/records/MNT_MAY100m_HOMONIM_WGS84.xml
 

Simple

Date ( Creation )
2015-09-09T00:00:00
Identifier

http://www.shom.fr/BATHYMETRIE/MNT_MAY100m_HOMONIM_WGS84

Presentation form
Digital map
Credit

©Shom

  Owner

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

  • Elevation

Keywords ( Theme )

  • bathymetry

  • digital elevation model

  • Product

  • open data

Keywords ( Place )

  • Mayotte

  • Indian Ocean

Keywords ( Discipline )

  • Geophysic

INSPIRE Spatial scope
High-value dataset categories
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
Pas de restriction d'accès public. No public access restrictions.
Classification
Unclassified
Spatial representation type
Grid
Distance
0.001  dd
Metadata language
French
Character set
UTF8
Topic category
  • Elevation
N
S
E
W


Vertical extent

Minimum value
-3670
Maximum value
30

Vertical CS

No information provided.

Vertical datum

No information provided.

Vertical extent

Minimum value
-3670
Maximum value
32

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
1251
Resolution
0.001  dd
Dimension name
Column
Dimension size
1251
Resolution
0.001  dd
Cell geometry
Area
Transformation parameter availability
false
Distribution format

  • ArcGis Grid

    (

    -

    )

  • BAG

    (

    -

    )

  • GLZ

    (

    -

    )

  • GRD

    (

    -

    )

  Distributor

OnLine resource
Shom geoportal  
OnLine resource
MNT_MAY100m_HOMONIM_PBMA_PYR_PNG_3857_WMSR  

Bathymetric DEM Mayotte 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:

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.

gmd:MD_Metadata

File identifier
MNT_MAY100m_HOMONIM_WGS84.xml   XML
Metadata language
French
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

  Point of contact

 
 

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  Associated resources

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