As an important branch of atmospheric science, the theory of single-scattering and multiple scattering (i.e., the transfer of radiation) is fundamental to the implementation of advanced remote sensing techniques and the investigation of the radiative forcings associated with various atmospheric components such as clouds and aerosols. This talk will start with a brief review of the significant contributions of several individuals in the history of light scattering and radiative transfer research, which will be followed by the discussions of the single-scattering properties of various nonspherical ice crystals including hollow bullet rosettes and ice particles with surface roughness and the relevant applications to remote sensing and the parameterization of the radiative properties of ice clouds. Additionally, the scattering properties of nonspherical aerosol particles (dust particles, in particular) and their implication to remote sensing will also be briefly addressed.

The second half of this talk will focus on the retrieval of ice cloud properties and the study of the radiative forcing of these clouds using MODIS, CERES, and AIRS data.