LITTO3D® Réunion 2016

Litto3D is a unique and continuous land-sea database which can provide 3D models of the shape and location of French coastal terrain. A line separates sea and land data acquisition zones, and the associated survey readings obtained using bathymetric lidar technologies or multibeam echosounders for sea readings and airborne lidar topographical surveys for land readings, with 300 m overlap. Litto3D digital models are available in two formats: a set of 3D points and a qualified terrain mesh.

Citation proposal
(2016) . LITTO3D® Réunion 2016. https://services.data.shom.fr:/geonetwork/telechargement/api/records/BATHYMETRIE_LITTO3D_REUNION_2016.xml

Simple

Alternate title: Land-sea altimetric database

Date ( Publication ): 2016-05-02

Edition: Edition 1.0

Identifier: http://www.shom.fr/BATHYMETRIE/L3D/LITTO3D_REUNION_2016

Presentation form: Digital map

Purpose

The main aim is to produce precise digital data with unrivalled resolution (decimetric precision, metric resolution) for French coastal terrain. This solution provides the basic data required to implement many applications and public policies, such as:

• Risk prevention (tsunamis, cyclone swell, rising sea level due to global warming, coastal flooding, flooding, erosion, etc.),

• Coastal planning studies (roads, ports, etc.),

• improved knowledge of the public maritime territory, tracking coastal withdrawal,

• mapping terrestrial and marine habitats,

• creating current models and related applications (tidal and swell current energy, waste dispersal at sea, sedimentary movements, etc.)

• Integrated Coastal Zone Management (ICZM).

Credit: This approach is led by Shom (Service Hydrographique et Océanographique de la Marine - Oceanography and Hydrography Service of the French Navy) and IGN (French institute for geographical and forestry information), in partnership with the Réunion Prefecture

Originator

Shom (Service hydrographique et océanographique de la marine)

Originator

Institut Géographique National (IGN-F)

Maintenance and update frequency: Irregular

Keywords ( Theme )

Product
open data

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

Use limitation: Data may be freely used providing that the source is mentioned.

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.

Access constraints: License

Use constraints: Other restrictions

Other constraints: No public restriction.

Use limitation: Aucune contrainte

Classification: Unclassified

Spatial representation type: grid Grid

Distance: 1 m

Metadata language: fre French

Character set: utf8 UTF8

Topic category

Elevation

Description: Réunion

Reference system identifier

EPSG

RGR92 / UTM zone 40S (EPSG:2975)

7.4

Distribution format

ASC
(
-
)
XYZ
(
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)

Point of contact

Shom

OnLine resource: Shom geoportal

OnLine resource

LITTO3D_REUNION_2016_PYR_3857_WMSR

LITTO3D® Réunion 2016 raster WMS

OnLine resource: Download service

OnLine resource: Shom distribution space

Hierarchy level: Series

Conformance result

Date ( Publication ): 2010-11-23

Explanation

Information sur la conformité au règlement d'interopérabilité des séries et des services de données géographiques.

Conformité non évaluée.

Pass: false

Statement

The DEM (Digital Elevation Model) is accompanied by layers, which add local metadata. Each layer is supported by the same even mesh as the DEM. One layer provides information on the source of most data used to calculate the node, for each node, and the second layer provides information on the evaluation of the distance between the node in question and the different known points used to calculate altitude.

· bathymetric lidar survey (HAWKEYE IIa) completed between 30/05/2009 and 15/10/2009 and between 09/10/2010 et le 7/10/2010.

· topographical lidar survey (ALTM31000AE-IGN) completed 03/09/2008 and 13/09/2008 and between 16/09/2009 and 30/10/2009.

· IUEM multibeam echosounder surveys completed between 30/11/2009 and 07/12/2009.