Backward and forward scattering of microwaves by ice particles: A review
Abstract
Approximate and exact mathematical techniques for the calculation of the scattering properties of a single ice particle are first reviewed. Then, for dealing with practical applications such as radar meteorology or radio wave transmission along earthspace links, the problem of the scattering by an assembly of particles is examined. This problem involves the knowledge of the particle size distribution and of the orienting mechanisms which can affect the ice crystals in the clouds. Although the T matrix formalism has been successfully used in a greater range of scattering problems than the other techniques, the Rayleigh approximation may be used with confidence for calculating the crosspolarization properties of radio waves at frequencies up to at least 25 GHz. Alignment of ice particles is not expected to occur in highaltitude cirrus clouds while alignment is observed in strong thunderstorms. Thus different models are to be used in order to predict the cross polarization along earthspace links.
 Publication:

Radio Science
 Pub Date:
 October 1982
 DOI:
 10.1029/RS017i005p00953
 Bibcode:
 1982RaSc...17..953M
 Keywords:

 Backscattering;
 Forward Scattering;
 Ice;
 Microwave Scattering;
 Angular Distribution;
 Clouds (Meteorology);
 Fredholm Equations;
 Mie Scattering;
 Particle Size Distribution