Radiative transfer model MCC plus plus with evaluation of weighting functions in spherical atmosphere for use in retrieval algorithms

被引:31
作者
Postylyakov, OV [1 ]
机构
[1] RAS, AM Obukhov Inst Atmospher Res, Moscow 119017, Russia
来源
TRACE CONSTITUENTS IN THE TROPOSPHERE AND LOWER STRATOSPHERE | 2004年 / 34卷 / 04期
关键词
radiative transfer model for spherical atmosphere; multiple scattering; weighting functions; air mass factors; inverse problems; retrieval algorithms;
D O I
10.1016/j.asr.2003.07.070
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
A linearized radiative transfer model MCC++ designed for use in retrieval algorithms was developed. It calculates the weighting functions with respect to the absorption in all atmospheric layers and the layer air mass factors simultaneously with the intensities. Multiple scattering radiance is calculated by the Monte Carlo methods for spherical atmosphere taking into account the polarization of light, aerosol loading of atmosphere and the Lambertian surface albedo. A validation of the MCC++ model against other radiative transfer models is presented. It includes a comparison of weighting function calculations, a comparison for the scattering limb geometry, a comparison for twilight ground-based observations. As an example, additional errors of Brewer Umkehr retrieval algorithms, when they use the weighting functions calculated for approximation of single-scattering, are evaluated. (C) 2004 COSPAR. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:721 / +
页数:3
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