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《Journal of Glaciology and Geocryology》 2010-05
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Correlation between NCEP/NCAR Reanalyzed Air Temperatures and the Observed Air Temperatures from Automatic Meteorological Stations along the Route from Zhongshan Station to Dome A,East Antarctica

XIE Ai-hong1,XIAO Cun-de1,2,REN Jia-wen1(1.State Key Laboratory of Cryospheric Sciences,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China;2.Chinese Academy of Meteorological Sciences,Beijing100081,China)  
The daily mean temperatures of National Centers for Environmental Prediction/National Center for Atmospheric Research(hereafter,NCEP/NCAR)reanalysis were compared with those independently observed by automatic meteorological stations(AMS)from Zhongshan Station,LGB69,Eagle and Dome A in eastern Antarctica from 2005 to 2006.It is found that the correlation coefficients were high,0.624,0.648,0.744 and 0.705(p0.001,n≥365)between the NCEP/NCAR reanalysis and the observations from Zhongshan Station,LGB69,Eagle and Dome A,respectively,which indicates that the NCEP/ NCAR reanalysis is able to capture the annual and seasonal temperature change in the region.Compared with the observed temperatures at the above four stations,the NCEP/NCAR reanalysis has the characteristics of warm bias,decreasing annual temperature range and standard deviation,with an applicability better in spring and summer and worse in autumn and winter.Furthermore,there is a tendency that the error increases from the edge to the interior along the Route from Zhongshan Station to Dome A.
【Fund】: 国家自然科学基金项目(40801027;40776002);; 中国极地科学战略研究基金项目(20070228);; 中国科学院“百人计划”项目;中国科学院寒区旱区环境与工程研究所青年人才基金项目资助;; 科技部支撑计划项目(2006BAB18B01)
【CateGory Index】: P412.3
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