Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Daily Variation of Heat Budget Balance in the Gangjeong-Goryung Reservoir for Summertime - Concerning around the Rate of Heat Storage -

낙동강 강정고령보의 여름철 열수지 일변화 - 열 저장량 변동을 중심으로 -

  • Kim, Seong-Rak (Department Of Global Environment, Keimyung University) ;
  • Cho, Chang-Bum (Applied Meteorology Research Division, National Institute of Meteorological Research, KMA) ;
  • Kim, Hae-Dong (Department Of Global Environment, Keimyung University)
  • 김성락 (계명대학교 지구환경학과) ;
  • 조창범 (국립기상연구소 응용기상연구과) ;
  • 김해동 (계명대학교 지구환경학과)
  • Received : 2015.01.14
  • Accepted : 2015.05.12
  • Published : 2015.06.30
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Abstract

Surface heat balance of the Gangjeong-Goryung Reservoir is analyzed for 12-17 August 2013. Each flux elements at the water surface is derived from the special field observations with application of an aerodynamical bulk method for the turbulent heat fluxes and empirical formulae for the radiation heat fluxes. The rate of heat storage in the reservoir is estimated by using estimated by surface heating rate and the vertical water temperature data. The flux divergence of heat transport is estimated as a residual. The features of the surface heat balance are almost decided by the latent heat flux and the solar radiation flux. On average for 12-17 August 2014 in the Gangjeong- Goryung Reservoir, if one defines the insolation at the water surface as 100 %, 94 % is absorbed in the reservoir; thereafter the reservoir loses about 30~50% by sensible heat, latent heat and net long-wave radiation. The residue of 50~80 % raises the water temperature in the reservoir or transported away by the river flow during the daytime.

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