3D Wind Field Retrieval Applied to Snow Events Using Doppler Radar

摘要

The variational analysis method of Laroche and Zawadzki for the retrieval of the 3D wind field from single- Doppler radar data is adapted to analyze stratiform snow events. Modifications include prefiltering of noisy Radial velocity data using a velocity azimuth display (VAD) analysis,, the use of snow particle fall speeds derived From extended VAD analyses, and the usage of high-elevation angle data. Arctic cases were collected during The Beaufort and Arctic Storms Experiment with X-band radar located at Inuvik and Tuktoyaktuk, Northwest Territories, Canada.