LITTO3D® marine part Morbihan 2015

Litto3D Marine Part is an intermediate product of the Litto3D product containing only marine data.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
(2015) . LITTO3D® marine part Morbihan 2015. https://services.data.shom.fr:/geonetwork/telechargement/api/records/BATHYMETRIE_L3D_MAR_MORBIHAN_2015.xml

Simple

Alternate title: Land-sea altimetric database

Date ( Publication ): 2015-05-19

Edition: Edition 1.0

Identifier: http://www.shom.fr/BATHYMETRIE/L3D/L3D_MAR_MORBIHAN_2015

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 topo-bathymetric data acquired by airborne lidar as part of a demonstrator made by the Shom on the Gulf of Morbihan in 2005 and re-processed with an algorithm (after 2010) for detection of bottoms in thin-layer zone water and in turbid waters are the product "marine part" Litto3D® Gulf of Morbihan.

The bathymetric data were supplemented by Shom and Ifremer multibeam echosounder (SMF) surveys available in the area.

Litto3D® "marine part" Gulf of Morbihan V.20150519 covers a geographical area extending from its mouth to Arzon to Vannes, via Auray and Sarzeau

Originator

Shom

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.

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.

Classification: Unclassified

Spatial representation type: Grid

Distance: 5 m

Metadata language: fre French

Character set: utf8 UTF8

Topic category

Elevation

Description: MORBIHAN

Reference system identifier

EPSG

RGF93 / Lambert-93 (EPSG:2154)

7.4

Distribution format

ASC
(
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)
XYZ
(
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)

Point of contact

Shom

OnLine resource: Shom geoportal

OnLine resource

L3D_MAR_MORBIHAN_2015_PYR_3857_WMSR

LITTO3D® marine part Morbihan 2015

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

These bathymetric and topographic data have been acquired:

- For the Shom Litto3D® demonstrator by airborne lidar: around the average date of June 15, 2005

- For the Shom multibeam echosounder (SMF): around the average date of December 1, 2003

- For Ifremer SMF : around the average date of October 1, 2013.

- For Shom's Litto3D® demonstrator, bathymetric and topographic data come from an Optech Shoals 1000T sensor.

- The bathymetric data provided in addition come from multibeam sensors (Shom or Ifremer shallows). These data generally respect the order 1b of the PS44