File:Latsis 2010 SwissEx Clifton.pdf

Running under the SwissEx infrastructure, the project uses data from local ad-hoc weather stations, traditional permanent observation sites and a temporary tall wind mast installation to validate high-resolution atmospheric model simulations of the wind in the Davos region. These simulations use the model ARPS, driven with data from the MeteoSwiss COSMO numerical weather prediction system. These observation and model data are being used to investigate the local redistribution of precipitation by wind, which is important over short timescales for avalanche formation and over longer intervals for its potential impact on mountain hydrology.

We present the project concept and some of the infrastructure used in the project, as well as selected first results from the winter of 2009 / 2010. These results show that the local terrain in the region of Davos causes measurable deviation from the forecast synoptic conditions, a result which needs to be considered when forecasting precipitation distribution.warning.pngString representation The SwissEx Science project is a collabora […] en forecasting precipitation distribution. is too long.