Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
권호 표지
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Surface Flux Measurements at King Sejong Station in West Antarctica: I. Turbulent Characteristics and Sensible Beat Flux

남극 세종기지에서의 지표 플럭스 관측: I. 난류 특성과 현열 플럭스

  • 최태진 (연세대학교 지구환경연구소) ;
  • 이방용 (한국해양연구원 부설 극지연구소) ;
  • 이희춘 (연세대학교 대기과학과) ;
  • 심재설 (한국해양연구원 연안.항만공학연구본부)
  • Published : 2004.09.30
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Abstract

The Antarctic Peninsula is important in terms of global warming research due to pronounced increase of air temperature over the last century. The first eddy covariance system was established at King Sejong Station located in the northern region of the Antarctic Peninsula in December of 2002 and has been operated over one year. Here, we analyze turbulent characteristics to determine quality control criteria for turbulent sensible heat flux data as well as to diagnose the possibility of long term eddy covariance measurement under extreme weather conditions of the Antarctic Peninsula. We also report the preliminary result on sensible heat flux. Based on the analyses on turbulent characteristics such as integral turbulence characteristics of vertical velocity (w) and heat (T), stationarity test and investigation of correlation coefficient, they fallow the Monin-Obukhov similarity and eddy covariance flux data were reliable. ${\sim}47%$ of total retrieved sensible heat flux data could be used for further analysis. Daytime averaged sensible heat flux showed a pronounced seasonal variation, with a maximum of up to $300Wm^{-2}$ in summer. In conclusion, continuous and long-term eddy covariance measurement may be possible at the study site and the land surface may influence the atmosphere significantly through heat transport in summer.

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