Estimating the PPH-bias for simulations of convective and stratiform clouds

被引：6
作者：
Bäuml, G [1 ]
Chlond, A [1 ]
Roeckner, E [1 ]
机构：
[1] Max Planck Inst Meteorol, D-20146 Hamburg, Germany
来源：
ATMOSPHERIC RESEARCH | 2004年 / 72卷 / 1-4期
关键词：
radiative transfer; inhomogeneous clouds; PPH bias; effective thickness approach;
D O I：
10.1016/j.atmosres.2004.03.019
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
The plane parallel homogeneous (PPH) approximation is known to generate systematic errors in the computation of reflectivity and transmissivity of a horizontally inhomogeneous cloud field. This PPH-bias is determined for two cloud fields, a stratocumulus and a shallow convective cloud scene, which have been simulated using a cloud resolving model. The independent column approximation has been applied as reference and a PPH analogue has been interpolated from the original cloud data. In order to correct for the bias the effective thickness approach (ETA) has been employed. For the two cloud simulations, the corresponding reduction factors have been determined. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：317 / 328
页数：12
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