大气科学进展（英文版）
大氣科學進展（英文版）
대기과학진전（영문판）
ADVANCES IN ATMOSPHERIC SCIENCES
2010年
5期
1151-1168
,共18页
于乐江%张占海%周明煜%Shiyuan ZHONG%Donald LENSCHOW%Hsiaoming HSU%吴辉碇%孙波
于樂江%張佔海%週明煜%Shiyuan ZHONG%Donald LENSCHOW%Hsiaoming HSU%吳輝碇%孫波
우악강%장점해%주명욱%Shiyuan ZHONG%Donald LENSCHOW%Hsiaoming HSU%오휘정%손파
中期天气预报%NCEP%南极洲%欧洲%数据验证%年际时间尺度%季节内变化%大气观测
中期天氣預報%NCEP%南極洲%歐洲%數據驗證%年際時間呎度%季節內變化%大氣觀測
중기천기예보%NCEP%남겁주%구주%수거험증%년제시간척도%계절내변화%대기관측
reanalysis data%interannual variability%intraseasonal variability%surface layer%upper layer%Antarctica
The European Center for Medium-Range Weather Forecast （ECMWF） Re-Analysis （ERA-40） and the National Centers for Environmental Prediction-National Center for Atmospheric Research （NCEP-NCAR） ECMWF （ERA-40） and NCEP–NCAR reanalysis data were compared with Antarctic station observations, including surface-layer and upper-layer atmospheric observations, on intraseasonal and interannual timescales. At the interannual timescale, atmospheric pressure at different height levels in the ERA-40 data are in better agreement with observed pressure than that in the NCEP–NCAR reanalysis data. ERA-40 reanalysis also outperforms NCEP–NCAR reanalysis in atmospheric temperature, except in the surface layer where the biases are somewhat larger. The wind velocity fields in both datasets do not agree well with surface-and upper-layer atmospheric observations. At intraseasonal timescales, both datasets capture the observed intraseasonal variability in pressure and temperature during austral winter.
