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Tower-based Flux Measurement Using the Eddy Covariance Method at Ieodo Ocean Research Station
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  • Journal title : Ocean and Polar Research
  • Volume 26, Issue 2,  2004, pp.145-154
  • Publisher : Korea Institute of Ocean Science & Technology
  • DOI : 10.4217/OPR.2004.26.2.145
 Title & Authors
Tower-based Flux Measurement Using the Eddy Covariance Method at Ieodo Ocean Research Station
Lee, Hee-Choon; Lee, Bang-Yong; Kim, Joon; Shim, Jae-Seol;
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 Abstract
Surface energy and fluxes have been measured over an ocean at Ieodo Ocean Research Station of KORDI since May 2003. Eddy covariance technique, which is a direct flux measurement, is used to quantitatively understand the interaction between the ocean surface and the atmospheric boundary layer. Although fluxes were continuously measured during the period from May 2003 to February 2004, the quality control of these data yielded <20% of data retrieval. The atmospheric stability did not show any distinct dirunal patterns and remained near-neutral to stable from May to June but mostly unstable during fall and winter in 2003. Sensible heat flux showed a good correlation with the difference between the sea water temperature and the air temperature. The maximum fluxes of sensible heat and latent heat were and respectively, with an averaged Bowen ratio of 0.2. The ocean around the tower absorbed from the atmosphere and the uptake rates showed seasonal variations. Based our preliminary results, the daytime flux was steady with an average of in summer and increased in winter. The nighttime uptake was greater and fluctuating, reaching up to but these data require further examination due to weak turbulent mixing at nighttime. The magnitude of flux was positively correlated with the half hourly changes in horizontal mean wind speed. Due to the paucity of quality data, further data collection is needed for more detailed analyses and interpretation.
 Keywords
Ieodo Ocean Research Station;eddy covariance;heat flux; flux;
 Language
Korean
 Cited by
1.
인공위성 데이터 기반의 공간 증발산 산정 및 에디 공분산 기법에 의한 플럭스 타워 자료 검증,서찬양;한승재;이정훈;최민하;

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