Automatische Projektionserkennung von Geodaten mit geographischen Namen

A new solution to detect and define the coordinate system of gis data based on geographic names automatically is presented. GIS-Users with almost no knowledge of coordinate systems and projections have often problems to integrate gis data in their projects, because the datasets have a wrong, or no projection definition. Since the solution works in the Austrian Service for Torrent and Avalanche Control (The Austrian Federal Ministry of Agriculture, Forestry, Environment and Water Management), the support time for such problems decreased rapidly. The solution is based on the combination of geographic names (for instance a district) and geometries of the location saved in different coordinate systems. With this combination is it possible to detect and define the coordinate system without specialized knowledge.