한국환경과학회지 (Journal of Environmental Science International)

  • 제25권3호
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  • Pages.405-415
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  • 2016
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  • 1225-4517(pISSN)
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  • 2287-3503(eISSN)
한국환경과학회 (The Korean Environmental Sciences Society)
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낙동강 구미 보의 증기 안개 발생 시의 미기상학적 특성

Micro-meteorological Characteristics during the Steam Fog over the Gumi Reservoir of Nakdong River

  • 김해동 (계명대학교 지구환경학과) ;
  • 조창범 (국립기상과학원 응용기상연구과) ;
  • 서광수 (부산대학교 지구과학교육과)
  • Kim, Hae-Dong (Department Of Global Environment, Keimyung University) ;
  • Cho, Chang-Bum (Applied Meteorology Research Division, National Institute of Meteorological Research) ;
  • Seo, Kwang-Su (Department of Earth Science Education, Pusan National University)
  • 투고 : 2015.11.09
  • 심사 : 2016.03.08
  • 발행 : 2016.03.31
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초록

We analyzed the micro-meteorological characteristics during typical steam fog over the Gumi Reservoir of Nakdong river with the field observation data for recent 2 year(1 April 2013~31 March 2015) collected by the national institute of meteorological research, KMA. Steam fog occur when the cold drainage flows over the warm water surface. As the sensible and latent heat from water are provided to the air, the instability of lower atmosphere is increased. The resultant vertical mixing of warm, moist air near water surface and cold air aloft causes the formation of status cloud. The convection strengthened by radiative cooling of the upper part of the stratus causes the fog to propagate downward. Also, the temperature at the lowest atmosphere is increased rapidly and the inversion near surface disappear by these processes when the fog forms. The increase of wind speed is observed because the downward transportation of momentum is caused by vertical mixing.

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