Alternate title

Land-sea altimetric database

Date ( Creation )

2021-07-02

Identifier

http://www.shom.fr/BATHYMETRIE/LITTO3D/LITTO3D_BZH_2018_2021

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

The data acquired by topographic, topo-bathymetric and bathymetric lidar airborne in the context of the operation " Litto3D® Brittany" are supplemented by inland elevations data from IGN RGE Alti database. This operation was led by Shom and IGN (French institute for geographical and forestry information) in partnership with French State, the Brittany Region and the Regional Department for the Environment, Development and Housing of Brittany (DREAL) with and the European Union within the framework of the European Regional Development Fund (FEDER).

Maintenance and update frequency

Irregular

Keywords ( Theme )

• Product , open data

GEMET - INSPIRE themes, version 1.0 ( Theme )

• Altitude Elevation

Use limitation

Data may be freely used providing that the source is mentioned as follows "Shom - IGN, 2024. https://doi.org/10.17183/L3D_BZH_2018_2021".

Use limitation

Open licence Etalab v. 2.0 avril 2017.

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

Open licence Etalab v. 2.0 avril 2017.

Access constraints

Other restrictions

Other constraints

Pas de restriction d'accès public. No public access restrictions.

Classification

Unclassified

Spatial representation type

Grid

Spatial representation type

Vector

Distance

1  m

Distance

5  m

Metadata language

fre French

Character set

utf8 UTF8

Topic category

• Elevation

Description

France, Bretagne

Distribution format

• ASC (inapplicable )

• XYZ (inapplicable )

OnLine resource

Shom geoportal  

Shom geoportal

OnLine resource

LITTO3D_BZH_2018_2021_PYR_3857_WMSR  

Access point Access point

OnLine resource

Shom distribution space to download data  

Shom distribution space to download tiles

Hierarchy level

Series

Statement

These data were acquired by airborne lidars during acquisition campaigns conducted from 4 may to 30 June 2018, from 3 May to 1 July 2019, from 26 August to 26 October 2019, from 3 February to 13 March 2020 and from 4 May to 2 July 2021. The topo-bathymetric data lidar come from a HawkEye 3 sensor in double trap configuration (Chiroptera + Deep Channel).

Metadata

File identifier

BATHYMETRIE_LITTO3D_BZH_2018_2021.xml   XML

Metadata language

fre French

Character set

utf8 UTF8

Hierarchy level

Series

Hierarchy level name

Collection de données

Date stamp

2024-02-21T13:47:49

Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0