In Europe there exist a very lot of different
Coordinate Reference Systems (CRS), and new CRS are defined. For
building up a Spatial Data Infrastructure (SDI), one condition is
that all spatial data (geodata) which are used for a specific
purpose need to use the same CRS simultaniously. For that, the
definition of each CRS ant their relations has to be known.
This collection of European Coordinate Reference
Systems collects a lot of paneuropean, regional and national CRS
(map projections, geodetic reference systems) informations.