Application of a Bayesian Wind Profile Retrieval Technique to Radar Data Collected in the Alpine Southern Upslope Region and Comparison with Upstream Wind Profiler Measurements

摘要

In this paper, a new operational technique to retrieve the horizontal wind profile form Doppler radar mea- surements is used to carry out a statistical comparison of upslope and upstream wind profiles in the southern flank of the European Alps. The method relies upon a first-order velocity azimuth display (VAD) expansion of the radial velocity and allows for recovering, through Bayesian updates, the likeliest wind speed and direction at each height. The major advantage of this new approach over existing ones is that it does not require any preliminary dealiasing of the radar data.