气象与环境学报Issue(6)：147-157,11.DOI:10.3969/j.issn.1673-503X.2014.06.022
中国东北和西北地区三种再分析资料与探空资料的温度对比
Comparative analysis of atmospheric temperature between three reanalysis datasets and radiosonde dataset in northeast and northwest of China
摘要
Abstract
Based on temperature data from radiosonde dataset at 105 stations in China and three reanalysis datasets of NCEP/NCAR,ERA and JRA,the reliability of free atmospheric temperature in the northeast and northwest of China was analyzed by methods of a root mean square error analysis and a trend analysis and so on.The results in-dicate that in terms of climatological mean,the root mean square error of JRA datasets is lower than that of radio-sonde dataset,and it is lower in winter and higher in the northwest of China than in the northeast of China.In terms of annual variance,atmospheric temperature of three reanalysis datasets are close to that of radiosonde dataset in low layer than in upper layer in the northeast of China,while temperature differences between three reanalysis data-sets and radiosonde dataset are higher in the northwest of China than in the northeast of China.In the aspect of long-term variance,three reanalysis datasets have comparable ability in reproducing the trend in lower troposphere. Cooling trend in upper layer can be better identified by the NCEP reanalysis dataset in the northeast of China, while it is by the JRA reanalysis dataset in the northwest of China.关键词
探空资料/再分析资料/气候平均/REOFKey words
Radiosonde dataset/Reanalysis dataset/Climatological mean/REOF (rotated empirical orthogonal function)分类
天文与地球科学引用本文复制引用
支星,徐海明,米卫红,苏志侠,段项锁,唐振兴..中国东北和西北地区三种再分析资料与探空资料的温度对比[J].气象与环境学报,2014,(6):147-157,11.基金项目
公益性行业（气象）科研专项（GYHY200906014）和上海市气象局研究型业务专项（YJ201214）共同资助。 （）
