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Abstract
The meteorological surveillance of the four Swiss nuclear power plants is of first importance in such a highly populated country. A new tool combining ground-based remote sensing information assimilated into a high resolution numerical weather prediction model was recently developed and is currently in a pre-operational stage.
The upper-air measurement network consists of three stations including surface measurements as well as a wind profiler and a microwave radiometer for wind and temperature profiling. This information is operationally assimilated in the 2.2km resolution NWP model COSMO which provides 24-hours regional forecasts every 3 hours.
In this paper, we describe first the measurement network configured to take into account the regional specificities. Then, the dedicated model configuration will be shortly presented. Finally, validation of the tool versus independent measurements will show the positive effects of assimilating wind profiler data into a NWP model at the regional scale.