The Eddington approximation calculation of radiation flux in the atmosphere-ocean system

被引：4
|
作者：
Shi, Chong [1 ,3 ]
Nakajima, Teruyuki [2 ]
机构：
[1] Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing 100029, Peoples R China
[2] Univ Tokyo, Atmosphere & Ocean Res Inst, Kashiwa, Chiba 2778568, Japan
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2015年 / 157卷
基金：
中国国家自然科学基金;
关键词：
Radiative transfer; Atmosphere-ocean system; Eddington approximation; HARMONIC EXPANSION APPROXIMATION; SOLAR-RADIATION; COMPUTATION; INTENSITY; COLOR;
D O I：
10.1016/j.jqsrt.2015.02.007
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An analytical approximation method is presented to calculate the radiation flux in the atmosphere-ocean system using the Eddington approximation when the upwelling radiation from the ocean body is negligibly small. Numerical experiments were carried out to investigate the feasibility of the method in two cases: flat and rough ocean surfaces. The results show good consistency for the reflectivity at the top of atmosphere and transmissivity just above the ocean surface, in comparison with the exact values calculated by radiative transfer models in each case. Moreover, an obvious error might be introduced for the calculation of radiation flux at larger solar zenith angles when the roughness of the ocean surface is neglected. (C) 2015 Elsevier Ltd. All rights reserved.
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页码：34 / 41
页数：8
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