Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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On the Steam Fog in the Gumi Reservoir of Nakdong River

낙동강 구미 보의 증기 안개에 관한 연구

  • 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)
  • 김해동 (계명대학교 지구환경학과) ;
  • 조창범 (국립기상과학원 응용기상연구과) ;
  • 서광수 (부산대학교 지구과학교육과)
  • Received : 2015.10.27
  • Accepted : 2015.12.22
  • Published : 2016.01.29
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Abstract

We analyzed the characteristics of fog formation in the Gumi Reservoir of Nakdong river with the field observation data for recent 2 years (1 April 2013~31 March 2015) collected by the national institute of meteorological research, KMA. In early morning, we frequently observe the steam rising from the water surface. The fog occurs from adding water vapor into the air. We call the fog as steam fog. Steam fogs occur when cold, dry air mixes with warm, moist air above a water surface. The steam fog appears mainly in autumn under the following conditions; (1) sensible heat is positive values ($10{\sim}20W/m^2$), (2) latent heat is more positive values ($25{\sim}35W/m^2$) than sensible heat, (3) cloudless nights with light winds (about 1.5 m/s), (4) under condition(3), mountainous winds easily blows into the reservoir.

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