Evaluation of a 45° slant quasi-linear radar polarization state for distinguishing drizzle droplets, pristine ice crystals, and less regular ice particles

摘要: Abstract A remote sensing capability is needed to detect clouds of supercooled, drizzle-sized droplets, which are a major aircraft icing hazard. Discrimination among differing ice particle types also important because both the presence and type influence survival liquid in cloud chances for occurrence these large, most hazardous droplets. This work shows how millimeter-wavelength dual-polarization radar can be used identify hydrometeors. It that by measuring depolarization ratio (DR), estimation hydrometeor accomplished deterministically drizzle droplets; particles regular shapes; considerable extent, more irregular particles, discrimination strongly influenced polarization state transmitted microwave radiation. Thus, appropriate selection emphasized. The an optimal involves trade-offs competin...