1956-2005年中国极端温度空间型变化年代际特征  

Interdecadal characteristics of spatial variation of extreme temperature in China from 1956 to 2005

作　　者：刘心洁 聂道洋 Liu Xinjie;Nie Daoyang(Dongxiang Meteorological Bureau of Fuzhou,Fuzhou 344000;Fuzhou Meteorological Bureau,Fuzhou 344000)

机构地区：[1]抚州市东乡区气象局,抚州344000 [2]抚州市气象局,抚州344000

出　　处：《气象水文海洋仪器》2024年第1期79-83,共5页Meteorological,Hydrological and Marine Instruments

基　　金：抚州市气象局自筹经费科研项目(FZQXKY202207);江西省气象局面上项目(JX2022M20)资助。

摘　　要：文章利用1956-2005年逐日气温资料,通过EOF等统计方法,对中国极端温度的时空特征和空间型的年代际特征进行了分析。结果表明:1956-2005年中国极端温度均呈现增加的趋势,特别是1986-2005年极端高温增温趋势加剧,其增温趋势约是1956-2005年的3倍;极端温度的增温趋势存在季节性差异,极端高温秋季增温趋势最强、夏季最弱,极端低温冬季增温趋势最强、夏季最弱;1986-2005年极端温度的增温趋势地域性差异更为突出;极端温度变化的空间模态随年代变化有一定规律。Based on the daily temperature data from 1956 to 2005,the spatial and temporal characteristics and the interdecadal characteristics of extreme temperature in China are analyzed by using EOF and other statistical methods.The results showed that the extreme temperature in China showed an increasing trend from 1956 to 2005,especially in 19862005.The warming trend was about three times that of 19562005.There are seasonal differences in the warming trend of extreme temperature,with the strongest warming trend in autumn and the weakest in summer for extreme high temperature,and the strongest warming trend in winter and the weakest in summer for extreme low temperature.The regional difference of warming trend of extreme temperature from 1986 to 2005 was more prominent,and the warming trend in Hetao area,Northeast China and Yangtze River Basin was significant.The regional characteristics of extreme temperature change have certain regularity with the change of years.

关 键 词：极端温度 增暖趋势 年代际变化 

分 类 号：P468.021[天文地球—大气科学及气象学]