지형조건에 따른 제주도의 일사량 분포 추정
Estimation of Solar Radiation Distribution Considering the Topographic Conditions at Jeju Island
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참고문헌
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초록
The solar radiation is the primary energy source that drives many of the earth's physical and biological processes and climatechange. Understanding its importance to the solar radiation observation is a key to understanding a broad range of natural processes,agricultural, energy and human activities. The purpose of this study is to estimate solar radiation using sunshine duration, and toestimate distribution of solar radiation using a topography factor considering surface slope and aspect in complex terrain. The resultof regression analysis between ratio of solar radiation and sunshine duration from 2001 to 2010 shows high R2 value of 0.878. Regression analyses indicated that topographic attributes including elevation, slope and aspect had significant effects on solar radiation. The variation of topographic factor with aspect and slope for the summer and winter are considered. The highest month of dailymean solar radiation at Jeju island appears in April of 20.61 MJ ․ m－2 ․ day－1, and the lowest month appears in December of 6.90MJ ․ m－2 ․ day－1. These results provided useful quantitative information about the influence of topography on solar radiation in theisland region.
Abstract
The solar radiation is the primary energy source that drives many of the earth's physical and biological processes and climatechange. Understanding its importance to the solar radiation observation is a key to understanding a broad range of natural processes,agricultural, energy and human activities. The purpose of this study is to estimate solar radiation using sunshine duration, and toestimate distribution of solar radiation using a topography factor considering surface slope and aspect in complex terrain. The resultof regression analysis between ratio of solar radiation and sunshine duration from 2001 to 2010 shows high R2 value of 0.878. Regression analyses indicated that topographic attributes including elevation, slope and aspect had significant effects on solar radiation. The variation of topographic factor with aspect and slope for the summer and winter are considered. The highest month of dailymean solar radiation at Jeju island appears in April of 20.61 MJ ․ m－2 ․ day－1, and the lowest month appears in December of 6.90MJ ․ m－2 ․ day－1. These results provided useful quantitative information about the influence of topography on solar radiation in theisland region.
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