THEORY OF THE SOLAR AUREOLE. PART I. SCATTERING AND RADIATIVE TRANSFER,
Abstract
The theory of the clear sky aureole around the sun is discussed as a problem of radiative transfer in a planeparallel, scattering atmosphere containing two types of particles: molecules characterized by the symmetrical Rayleigh scattering and a few larger spherical dielectric particles characterized by a highly asymmetrical, forward scattering pattern. For a single scattering process of the latter type, the classical series solution of G. Mie is replaced by the approximation proposed by D. S. Saxon making use of an integral representation of the amplitude of the scattered electromagnetic wave. After verifying the high degree of approximation thus obtained to the exact scattering pattern near the forward direction, it is shown how it can be used in the equation of radiative transfer for a turbid atmosphere, as formulated by Z. Sekera, in evaluating the effects of turbidity on the theoretical skylight corresponding to a Rayleigh atmosphere. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 03, 1957
- Accession Number
- AD0606546
Entities
People
- Diran Deirmendjian
Organizations
- RAND Corporation