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Short-term prediction of local wind conditions
Authors:Lars Landberg  Simon J Watson
Institution:(1) Department of Meteorology and Wind Energy, Risø National Laboratory, DK-400 Roskilde, Denmark;(2) Rutherford Appleton Laboratory, Chilton, OX11 0QX Didcot, Oxon, UK
Abstract:Using Numerical Weather Prediction (NWP) models it has been shown that they, combined with models (either physical or statistical) taking local effects into account, can be used to predict the wind locally better than the models commonly used today (as eg persistence). By ldquolocalrdquo is meant at one distinct spot, as eg the location of a meteorological mast. The physical model of local effects takes the following into account: shelter from near-by obstacles, the effect of roughness changes and the effect of the local orography. The large-scale flow is linked to the surface flow by the geostrophic drag law, and the logarithmic wind profile. The predictions are made up to 36 hours ahead. The model is tested on data from 50 meteorological stations scattered all over Europe.
Keywords:
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