VLIDORT: A linearized pseudo-spherical vector discrete ordinate radiative transfer code for forward model and retrieval studies in multilayer multiple scattering media

被引:333
作者
Spurr, Robert J. D. [1 ]
机构
[1] RT Solut Inc, Cambridge, MA 02138 USA
关键词
radiative transfer; polarization; linearization; discrete ordinates; pseudo-spherical;
D O I
10.1016/j.jqsrt.2006.05.005
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We describe a new vector discrete ordinate radiative transfer model with a full linearization facility. The VLIDORT model is designed to generate simultaneous output of Stokes vector light fields and their derivatives with respect to any atmospheric or surface property. We develop new implementations for the linearization of the vector radiative transfer solutions, and go on to show that the complete vector discrete ordinate solution is analytically differentiable for a stratified multilayer multiply scattering atmospheric medium. VLIDORT will generate all output at arbitrary viewing geometry and optical depth. The model has the ability to deal with attenuation of solar and line-of-sight paths in a curved atmosphere, and includes an exact treatment of the single scatter computation. VLIDORT also contains a linearized treatment for non-Lambertian surfaces. A number of performance enhancements have been implemented, including a facility for multiple solar zenith angle output. The model has been benchmarked against established results in the literature. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:316 / 342
页数:27
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