Saturday, November 21, 2015

Litto3D : a French coastal DTM

Litto 3D : a 3D seamless representation of French coastal areas

The French national program Litto3D was launched in April 2003 as a need for a better management of coastal areas.
It remains the first data set coming from the collaboration of the French National Mapping Agency (IGN) and the Hydrographic and Oceanographic Service of the French Navy (SHOM).
Litto3D is an seamless altimetric digital elevation model of French coastal foreshore.

Litto3D builds upon both bathymetric and topographic lidar surveys completed by water depths measurements using multi-beam sounder

From this results an accurate knowledge of the French wholecoastal areas (homeland andultra-peripherals: Guadeloupe, Martinique, Réunion, Guyane, Mayotte and Saint-Pierre-et-Miquelon).

The aim of Litto3D® is to produce a seamless bathymetric and topographic database
 covering the littoral zone, right now available for Brittany.

Chaussee de Sein

 Les Glénans - Fort Cigogne

Finistere 2014 available in Open Data on SHOM website

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