Polarimetric Radar Measurements of Rain and Radar Derived Attenuation and Depolarization in Rain at 20/30 GHz

Propagation properties of rain are derived from radar measurements. The radar measurements of rain have been performed using the polarimetric DFVLR weather radar. Measurements of the horizontal reflectivity, differential reflectivity and linear depolarization ratio in rain are presented. The mean canting angle of raindrops is directly derived from measurements at several linear polarizations. The radar data is corrected for propagation effects which occur on the way between radar and scatter volume. Attenuation and depolarization are derived from the corrected radar data for the frequencies of planned satellite-earth links at 20 and 30 GHz.