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The FOEN Hydrology Division’s basic monitoring network now comprises some 260 gauging stations on surface waters. In addition to lake water levels, river discharge is measured at 200 sites. 90% of all stations have automatic remote retrieval facilities.
Systematic recording of the fundamental parameters of water levels and discharge dates back to the mid-nineteenth century. The long-standing measurement series provide a basis for a wide variety of applications, such as flood protection or investigation of the effects of climate change.
As the data is now rapidly accessible through remote retrieval (via logger and modem), it can be of great importance to decision makers under extreme conditions. In order to guarantee availability, a flood-proof design is employed, as well as state-of-the-art technology. Contactless radar devices are used instead of more vulnerable floats or pneumatic measuring instruments, and the stations are set up at a safe distance from the channel.
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