Development of a method for generating operational solar radiation maps from satellite data for a tropical environment

被引:79
作者
Janjai, S [1 ]
Laksanaboonsong, J
Nunez, M
Thongsathitya, A
机构
[1] Silpakorn Univ, Dept Phys, Lab Atmospher Phys, Nakhon Pathom 73000, Thailand
[2] Minist Energy, Dept Alternat Energy Dev & Efficiency, Bangkok 10330, Thailand
[3] Univ Tasmania, Sch Geog & Environm Studies, Hobart, Tas 7001, Australia
关键词
solar mapping; solar radiation; satellite-derived radiation data; solar energy; solar radiation maps;
D O I
10.1016/j.solener.2004.09.009
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Despite a considerable number of publications which use satellite data to map solar radiation, relatively few studies have been undertaken in a tropical environment. In this study, we have developed a method to produce operational solar radiation maps from satellite data for this environment. The method is based on a physical model which relates the satellite-derived earth-atmospheric reflectivity from visible channel of GMS-4 and GMS-5 to the transmissivity of the atmosphere. Cloud reflectivity was determined from satellite data, while radiation absorbed by water vapour, ozone and aerosols and radiation scattered by aerosols were determined from ground-based meteorological data. Techniques for determining the radiation depleted by these atmospheric constituents over a whole country were also presented. Satellite data of a six-year period (1993-1998) with approximately ten thousand satellite images were used to construct the maps. When tested against an independent data set, monthly average of daily global irradiation calculated from this method agree with that obtained from the measurements with the relative root mean square difference of 6.8% with respect to the mean values. Solar radiation is presented as twelve maps showing the monthly average of global irradiation and one map showing the yearly average of global irradiation. Radiation patterns from the maps show a strong influence of the tropical monsoons. (c) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:739 / 751
页数:13
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