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April 6th, 2011
Swiss Meteorological Network Upgrades with Precision GNSS Positioning

The enhanced accuracy of the instrument positions leads to an improvement in MeteoSwiss products, especially solar radiation measurement, by improving the horizon definition; and atmospheric pressure measurements by providing an accurate altitude. “MeteoSwiss operates its network of 1,100 very accurate sensors to record a wide variety of meteorological measurements, including air pressure, temperature, humidity, wind speed and direction, rainfall and radiation parameters.” explains Dr. Barbara Huguenin-Landl, Deputy Project Leader at SwissMetNet.

“The sensors measure and broadcast their data, consisting of several thousands of parameters, every ten minutes to the central MeteoSwiss database. The data is among others used by MeteoSwiss to serve as an input to a high-precision numerical weather prediction system, COSMO, which generates regional and local forecast products for the complex Swiss topography.