A new parametrization for the radiative properties of ice crystals: Comparison with existing schemes and impact in a GCM

被引:86
作者
Edwards, J. M. [1 ]
Havemann, S. [1 ]
Thelen, J. -C. [1 ]
Baran, A. J. [1 ]
机构
[1] Met Off, Exeter EX1 3PB, Devon, England
关键词
cirrus; single scattering properties; radiation parametrization; climate models;
D O I
10.1016/j.atmosres.2006.03.002
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
A new parametrization of the single scattering properties of ice crystals suitable for use in general circulation models of the atmosphere is presented. The parametrization is developed from a recent treatment of the scattering properties of an ensemble of ice crystals, which has been validated against observational data and is based on a more rigorous treatment of ice optics than has been possible until recently. The new parametrization is compared with existing schemes in idealized test cases and its impact in a climate model is assessed. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:19 / 35
页数:17
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