中国近50年冬夏季极端气温场的年代际空间型态及其演变特征研究  

INTERDECADAL SPATIAL STRUCTURE AND EVOLUTION OF EXTREME TEMPERATURES IN WINTER AND SUMMER OVER CHINA DURING THE PAST 50 YEARS

作　　者：江志红[1] 丁裕国[1] 屠其璞[1] 

机构地区：[1]南京气象学院

出　　处：《应用气象学报》1999年第S1期98-104,共7页Journal of Applied Meteorological Science

基　　金：国家"九五"重中之重科技项目

摘　　要：利用我国１９５３～１９９５年冬夏季平均最低气温（Ｔｍ）和平均最高气温（ＴＭ）资料，分析冬夏季ＴＭ、Ｔｍ距平场的年代际空间型态及其演变特征．指出冬夏季Ｔｍ、ＴＭ场的空间型态基本都在７０年代末至８０年代初发生显著变化，但空间型态变化的冬夏季差异十分明显，且冬季Ｔｍ、夏季ＴＭ空间型态的年代际变化在相应Ｔｍ、ＴＭ场的变化中占有明显优势．In terms of mean minimum( T m ) and maximum(T M)temperature in winter and summer from 1953 to 1995 over China,spatial structure and temporal evolution are investigated on decadal scales.The results show that an obvious change of spatial structure of these temperature fields occurred during the end of 1970s and the early 1980s,but significant structure differences are found between summer and winter.Besides,the interdecadal changes of spatial modes for winter T m and summer T M are dominant among all the variations.

关 键 词：平均最高气温 平均最低气温 空间型态 年代际变化 

分 类 号：P423.36[天文地球—大气科学及气象学]