KOPRI Repository

Recent Changes in Downward Longwave Radiation at King Sejong Station, Antarctica

Cited 19 time in wos
Cited 17 time in scopus
Metadata Downloads
Recent Changes in Downward Longwave Radiation at King Sejong Station, Antarctica
Other Titles
남극 세종기지에서의 최근 하향장파복사의 변화
Cho, Hi Ku
Jung, Yeonjin
Lee, Bang Yong
Lee, Yun Gon
Kim, J.
Meteorology & Atmospheric Sciences
Antarctica; King Sejong Station; downward longwave irradiance; long-term variabilities
Issue Date
American Meteorological Society
Cho, Hi Ku, et al. 2008. "Recent Changes in Downward Longwave Radiation at King Sejong Station, Antarctica". JOURNAL OF CLIMATE, 21(22): 5764-5776.
Effects of cloud, air temperature, and specific humidity on downward longwave irradiance and their long-term variabilities are examined by analyzing the measurements made at the King Sejong Station in the Antarctic Peninsula during the period of 1996.2006. It has been shown that the downward longwave irradiance (DLR) is significantly correlated with three variables: air temperature, specific humidity, and cloudiness. Based on the relationship of the three variables with DLR, a multiple linear regression model has been developed in order to evaluate the relative contribution of each of the variables to the variation of DLR. The three variables together explained 75% of all the variance in daily mean DLR. The respective contribution from specific humidity and cloudiness to the variation of DLR was 46% and 23%;thus most of the DLR variability can be explained by the variations in the two variables. The annual mean of longwave cloud forcing shows 52 W m2 with no remarkable seasonal cycle. It is also noted that the overcast cloud effect gives an increase by 65 W m2 with respect to clear-sky flux throughout the year. It is suggested that the multiple regression model can be used to estimate the radiative forcings of variables influencing the DLR variability.
Files in This Item
General Conditions
      ROMEO Green
    Can archive pre-print and post-print or publisher's version/PDF
      ROMEO Blue
    Can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
      ROMEO Yellow
    Can archive pre-print (ie pre-refereeing)
      ROMEO White
    Archiving not formally supported

    Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.