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Vector Green's function algorithm for radiative transfer in plane-parallel atmosphere

Authors
Journal
Journal of Quantitative Spectroscopy and Radiative Transfer
0022-4073
Publisher
Elsevier
Publication Date
Volume
97
Issue
2
Identifiers
DOI: 10.1016/j.jqsrt.2005.04.009
Keywords
  • Radiative Transfer
  • Green'S Function
  • Polarization
Disciplines
  • Computer Science

Abstract

Abstract Green's function is a widely used approach for boundary value problems. In problems related to radiative transfer, Green's function has been found to be useful in land, ocean and atmosphere remote sensing. It is also a key element in higher order perturbation theory. This paper presents an explicit expression of the Green's function, in terms of the source and radiation field variables, for a plane-parallel atmosphere with either vacuum boundaries or a reflecting (BRDF) surface. Full polarization state is considered but the algorithm has been developed in such way that it can be easily reduced to solve scalar radiative transfer problems, which makes it possible to implement a single set of code for computing both the scalar and the vector Green's function.

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