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= Change the coordinate system in !ArcGis =

Change the coordinate system of an input Dataset to a new Output Dataset with a newly defined coordinate system, including the datum and spheroid.[[BR]]

Ecoregions - Geographic Coordinate System : GCS_sphere_ARC_INFO  this coordinate system doesn't exist in the srid in postgis. So we had to use Arcgis to change the coordinate system into ETRS1989 LAEA (srid=3035 in postgis).

Add the different layers :
  - dmeereea4074i_tic
  - dmeereea4074i_label
  - dmeereea4074i_arc
  - dmeereea4074i_polygon

In the !ArcToolbox select : Data Management Tools > Projections and Transformations > Feature > Project[[BR]][[BR]]
Open Project and :[[BR]]
   - "Input Dataset or Feature Class" : select the layer to reproject (dmeereea4074i_arc)[[BR]]
   - "Output Dataset or Feature Class" : a new name is given by default (or change it)[[BR]]
   - In "Output Coordinate System" : you'll have to choose the ETRS1989 LAEA coordinate system[[BR]]
   Output Coordinate System > XY Coordinate System > Select > Projected Coordinate Systems > Continental > Europe > Choose : ETRS1989 LAEA