Abstract
Scattering parameters for ensembles of aspherical ice and liquid hydrometeors were calculated at an incidence angle ( psi ) of 50 degrees for frequencies of 10.7, 18.0, 37.0, 50.3, and 85.6 GHz. Hydrometeors are assumed to be oblate ellipsoids with semiminor axes aligned with psi =0 degrees . The angle psi 50 degrees is determined by the viewing angle of satellite-borne radiometers. The backscattering extinction coefficients at psi =0 degrees were also calculated at 18, 37, and 85.6 GHz to provide information for future nadir scanning satellite-borne radars. The hydrometeors are assumed to be characterized by Marshall-Palmer drop-size distributions. The extended boundary condition method is used to calculate the extinction and backscattering coefficients as well as the albedo for single scattering and the asymmetry factor of the phase function. Results are fitted to simple functions of the rainfall rate. Some comparisons illustrate the differences and similarities of these results with those obtained from equal volume spheres.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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