Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Characteristic analysis of solar radiation and atmospheric transmissivity at Chupungryeong

추풍령의 일사량과 대기투과율의 특성 분석

  • Park, Jin Ki (Department of Agriculture and Rural Engineering, Chungbuk National University) ;
  • Kim, Bong Seop (Department of Agriculture and Rural Engineering, Chungbuk National University) ;
  • Park, Jong Hwa (Department of Agriculture and Rural Engineering, Chungbuk National University)
  • 박진기 (충북대학교 지역건설공학과) ;
  • 김봉섭 (충북대학교 지역건설공학과) ;
  • 박종화 (충북대학교 지역건설공학과)
  • Received : 2014.05.26
  • Accepted : 2014.06.23
  • Published : 2014.06.30
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Abstract

The surface solar radiation is an important indicators for climate and agricultural research over the Earth system. For the climate and agricultural research, long-term meteorological data and accurate measured data are needed. The daily solar radiation from Jan. 2001 to Dec. 2010 have been employed in this study analyze atmospheric transmissivity for Chupungryeong. The corresponding daily value of atmospheric transmissivity is calculated for Chupungryeong meteorological data. In this paper, relationship analysis of daily solar radiation and atmospheric transmissivity is presented. It shows that atmospheric transmissivity over late December peaked in the 2000s, substantially decreased from the early-January, and changed little after that in summer. Reduction of solar radiation caused a reduction of more than 0.3 in atmospheric transmissivity during July to August. It was concluded that the atmospheric transmissivity could be very useful for evaluating solar radiation. Atmospheric transmissivity approach is suitable for daily-term simulation studies and useful for computing solar radiation.

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References

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