S. Oshchepkov et H. Isaka, INVERSE SCATTERING PROBLEM FOR MIXED-PHASE AND ICE CLOUDS .1. NUMERICAL-SIMULATION OF PARTICLE SIZING FROM PHASE-FUNCTION MEASUREMENTS, Applied optics, 36(33), 1997, pp. 8765-8774
We propose a new method of particle size retrieval for mixed-phase and
ice crystal clouds. The method enables us to identify each component
of a bicomponent cloud composed of water droplets and ice crystals and
to retrieve a size distribution separately for each cloud component.
We explore the method's capability by using sythetic multiangular data
of scattered-light intensity. We model cloud microphysical characteri
stics by assuming two noninteracting cloud components, such as liquid
or supercooled droplets and cubic or hexagonal ice crystals, with regu
lar simple geometrical shapes as first approximation. The sensitivity
of the method is tested for different relative concentrations of the c
loud components that are varied over a wide range. First, we investiga
te the applicability limit of the single-component cloud approximation
in retrieving particle size distributions of a bicomponent cloud. Sec
ond, we test the method to retrieve size distributions simultaneously
for both components in mixed-phase clouds, and we discuss the conditio
ns of its applicability. (C) 1997 Optical Society of America.