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해수면에 의해 반사된 태양복사 성분의 특성: 남한의 제주도 사례
( Uno Fumichika ),( Yousay Hayashi ),황수진 ( Soo Jin Hwang ),김해동 ( Hae Dong Kim ) 한국농림기상학회 2011 한국농림기상학회지 Vol.13 No.2
Solar radiation components reflected by the sea surface (R(ss)↑) are additional energy sources comprising the solar radiation regime. Previous studies, based on observational approaches, indicated that R(ss)↑ is an available climatological resource. However, an estimation process for R(ss)↑ has not been established. In this case study over Jeju Island in South Korea, we applied a new estimation process to solar radiation modeling and discussed the spatial distribution of R(ss)↑ and its seasonal variation. Our results showed that the illuminated area and the intensity of R(ss)↑ became greatest at the winter solstice and least at the summer solstice. We estimated the illuminated area of R(ss)↑ as it expanded over the southern slope of Jeju Island. At the winter solstice, on a daily basis, the area and intensity of illumination by R(ss)↑ were 182.3 km2 and 0.41 MJ m.2 day.1, respectively. Comparing the daily accumulative and instantaneous values of R(ss)↑ intensity, the difference was about 20 times greater in daily cases than in instantaneous cases. On the other hand, for instantaneous values, the R(ss)↑ intensity accounted for up to 33% of the three components, i.e., direct, diffuse and reflected radiation in winter solstice. In addition, it was estimated that the sea surface reflectance depended on the wind speed. Therefore, in a practical use of this revised model, wind conditions should be considered as a critical factor in estimating R(ss)↑.
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