HR: 0800h
AN: GC51A-1049    [Abstracts]
TI: Surface Flux Measurements at King Sejong Station in West Antarctica
AU: * Choi, T
EM: ctjin@yonsei.ac.kr
AF: Global Environmental Laboratory/Dept. of Atmospheric Sciences, Yonsei University, Seoul, 120-749 Korea, Republic of
AU: Lee, B
EM: bylee@kopri.re.kr
AF: Korea Polar Research Institute, KORDI, Ansan P.O. Box 29, Seoul, 425-600 Korea, Republic of
AU: Lee, H
EM: fluxes@atmos.yonsei.ac.kr
AF: Global Environmental Laboratory/Dept. of Atmospheric Sciences, Yonsei University, Seoul, 120-749 Korea, Republic of
AU: Shim, J
EM: jsshim@kordi.re.kr
AF: Coastal and Harbor Engineering Research Division, KORDI, Ansan P.O. Box 29, Seoul, 425-600 Korea, Republic of
AB: 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 and turbulent fluxes of heat, water vapor, CO2 and momentum have been measured at King Sejong Station (62 \deg 13›¯S, 58 \deg 47›¯W) located in the northern edge of the Antarctic Peninsula since December in 2002. Our objectives are to better understand the interactions between the Antarctic land surface and the atmosphere and to test the feasibility of the long-term operation of eddy covariance system under extreme weather conditions. Various lichens cover the study area and the dominant species is Usnea fasciata-Himantormia. Based on the analyses on turbulent statistics such as integral turbulence characteristics of vertical velocity (w) and heat (T), stationarity test and investigation of correlation coefficient, they follow the Monin-Obukhov similarity and eddy covariance flux data were reliable. About 50 % of total retrieved sensible heat flux data could be used for further analysis. We will report on seasonal variations of energy and mass fluxes and environmental variables. In addition, factors controlling these fluxes will be presented. Acknowledgement: This study was supported by ­rEnvironmental Monitoring on Human Impacts at the King Sejong Station, Antarctica­_ (Project PP04102 of Korea Polar Research Institute) and ­rEco-technopia 21 project­_ (Ministry of Environment of Korea).
DE: 3322 Land/atmosphere interactions
DE: 1704 Atmospheric sciences
DE: 0315 Biosphere/atmosphere interactions
SC: Global Climate Change [GC]
MN: 2004 AGU Fall Meeting