The effects of small ice crystals on the infrared radiative properties of cirrus cloudsThe effects of nonspherical small ice crystals on the IR radiative properties of cirrus clouds are investigated utilizing light scattering properties of spheroidal particles. Employing the anomalous diffraction theory for spheres and results from the exact spheroid scattering program, efficient parameterization equations are developed for calculations of the absorption and scattering properties for small ice crystals. Parameterization formulas are developed for large ice crystals employing results computed from the geometric ray-tracing method and the Fraunhofer diffraction theory for hexagonal crystals and spheroids.
Document ID
19920031350
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Takano, Y. (Utah Univ. Salt Lake City, UT, United States)
Liou, K. N. (Utah, University Salt Lake City, United States)
Asano, S. (Meteorological Research Institute Tsukuba, Japan)
Heymsfield, A. (NCAR Boulder, CO, United States)
Minnis, P. (NASA Langley Research Center Hampton, VA, United States)