Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Seasonal Variation of the Surface Heat Budget in the Gumi Reservoir of Nakdong River

낙동강 구미 보의 수면 열수지 계절 변화

  • Kim, Hak-Yun (Department Of Global Environment, Keimyung University) ;
  • Seo, Kwang-Su (Department of Earth Science Education, Pusan National University) ;
  • Cho, Chang-Bum (Applied Meteorology Research Division, National Institute of Meteorological Research, KMA) ;
  • Kim, Hae-Dong (Department Of Global Environment, Keimyung University)
  • 김학윤 (계명대학교 지구환경학과) ;
  • 서광수 (부산대학교 지구과학교육과) ;
  • 조창범 (국립기상과학원 응용기상연구과) ;
  • 김해동 (계명대학교 지구환경학과)
  • Received : 2016.01.21
  • Accepted : 2016.03.18
  • Published : 2016.08.31
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Abstract

The heat budget is investigated in the Gumi Reservoir of the Nakdong river. In warm climate season, solar radiation effects play a important role in the change of water temperature. The features of the surface heat balance are almost derived by the latent heat flux and the solar radiation flux. On the other hand, in cold climate season, change of heat stored in the water is mainly dominated by latent and sensible heat transfer between water and air, since flux of solar radiation and loss of outgoing long wave radiation balance approximately. For the annual averages, net flux of radiation, evaporation(latent heat) loss are dominant in the Gumi reservoir. The evaporation losses are dominant from spring to early winter. This means that the Gumi reservoir rolls like a lake of thermal medium or deep depth.

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