APC: A new code for Atmospheric Polarization Computations

Date

2013-06-27

Department

Program

Citation of Original Publication

Korkin, Sergey V., Alexei I. Lyapustin, and Vladimir V. Rozanov. “APC: A New Code for Atmospheric Polarization Computations.” Journal of Quantitative Spectroscopy and Radiative Transfer 127 (September 1, 2013): 1–11. https://doi.org/10.1016/j.jqsrt.2013.06.019.

Rights

This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Public Domain

Abstract

A new polarized radiative transfer code Atmospheric Polarization Computations (APC) is described. The code is based on separation of the diffuse light field into anisotropic and smooth (regular) parts. The anisotropic part is computed analytically. The smooth regular part is computed numerically using the discrete ordinates method. Vertical stratification of the atmosphere, common types of bidirectional surface reflection and scattering by spherical particles or spheroids are included. A particular consideration is given to computation of the bidirectional polarization distribution function (BPDF) of the waved ocean surface.