Last updated
October 28, 2020
Terms of use
Open use. Must provide the source.


The topic Hydrography contains the different features connected to water. It consists of 6 feature classes and one table. The lines of "FlowingWater" and "StagnantWater" and the points of "GWK_FW_Node" are connected with each other according to a so called edge-node structure. Edges (lines) are connected to each other with nodes (points). Every edge has therefore exactly two nodes at its end. Edges and Nodes together build a geometric network. In collaboration with the Federal Office for Water and Geology (BWG), the edges and nodes in Switzerland were structured and addressed according to GEWISS (the Swiss Water Information System). For this reason, the so called GEWISS-Attributes were integrated. A Feature Class with information on waterfalls, locks and other objects was integrated into this topic.


Additional information

Issued date
February 24, 2012
Modified date
October 28, 2020
Bundesamt für Landestopografie
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