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Solar Irradiance Estimation in Korea by Using Modified Heliosat-II Method and COMS-MI Imagery
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 Title & Authors
Solar Irradiance Estimation in Korea by Using Modified Heliosat-II Method and COMS-MI Imagery
Won Seok, Choi; Ah Ram, Song; Il, Kim Yong;
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Solar radiation data are important data that can be used as basic research data in diverse areas. In particular, solar radiation data are essential for diverse studies that have been recently conducted in South Korea including those for new and renewable energy resource map making and crop yield forecasting. So purpose of this study is modification of Heliosat-II method to estimate solar irradiance in Korea by using COMS-MI imagery. For this purpose, in this study, errors appearing in ground albedo images were corrected through linear transformation. And method of producing background albedo map which is used in Heliosat-II method is modified to get more finely tuned one. Through the study, ground albedo correction could be successfully performed and background albedo maps could be successfully derived. Lastly, In this study, solar irradiance was estimated by using modified Heliostat-II method. And it was compared with actually measured values to verify the accuracy of the methods. Accuracy of estimated solar irradiance was 30.8% RMSE(%). And this accuracy level means that solar irradiance was estimated on 10% higher level than previous Heliosat-II method.
Solar Irradiance Map;Solar Irradiance Estimation;Heliosat-II Method;Ground Albedo Correction;Background Albedo Map;COMS-MI Imagery;
 Cited by
관측 빈도에 따른 COMS 기반의 일 평균 일사량 산출의 민감도 분석,김홍희;이경상;서민지;최성원;성노훈;이다래;진동현;권채영;허모랑;한경수;

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