= GIS Structures =

Three candidates are available for EDA : ["BDCarthage"] - ["CCM"] - ["ECRINs"]

When comparing surface layers for ECRINs and CCM for the bassin Loire-Bretagne : the CCM layer is more extended than the Ecrin Layer

[[Image(source:data/Docs/trac/Loire Bretagne 1 - CCM Ecrins.jpg,500px)]]

== Comparison table between CCM - Ecrins - BDCarthage ==

[[Image(source:data/Docs/trac/Tableau Comparaison CCM-Ecrins-BDCarthage.jpg)]]