1961—2012年内蒙古秋季气温变化及低温异常类型的大气环流特征  

Variations in Autumn Temperature in Inner Mongolia and Circulation Characteristics of Abnormal Low Temperature Types during 1961-2012

作　　者：安莉娟[1] 

机构地区：[1]内蒙古气候中心,内蒙古呼和浩特010051

出　　处：《沙漠与绿洲气象》2015年第6期34-40,共7页Desert and Oasis Meteorology

基　　金：中国科学院寒旱区陆面过程与气候变化重点实验室开放基金项目(LPCC201306)资助

摘　　要：利用1961—2012年内蒙古地区82个台站秋季(9—10月)平均气温、最高气温、最低气温气象资料,运用一元线性回归、非参数检验法(Mann-Kendall)和EOF分析等方法,分析了近52 a内蒙古秋季气温变化,并对异常低温年成因进行了分析。结果表明:(1)内蒙古地区秋季平均气温、最高气温、最低气温呈上升趋势且最低气温增温速率最快,为0.51益/10 a。(2)20世纪90年代后期到21世纪气温相对集中偏暖,偏冷到异常偏冷时间段主要在20世纪80年代前期,进而分析了内蒙古秋季典型低温年的大气环流特征,环流形势分为3种不同类型。Based on the data of autumn mean temperature, maximum temperature, minimumtemperature of representative 82 stations in Inner Mongolia from 1961 to 2012, the climaticcharacteristics and causes of abnormal low temperature were analyzed using liner trend estimation,Mann-Kendall, EOF and other mathematical statistics methods. The result showed that（1） theautumn mean temperature, maximum temperature, minimum temperature in Inner Mongoliaincreased, and autumn minimum temperature increaed rate was fastest reaching to 0.51 益/10 a;（2）the autumn temperatures became colder and abnormally colder mainly before 1980 s and warmer andabnormally warmer in 1991-2012 in Inner Mongolia. Aatmospheric circulation characteristics of lowtemperature years was classified into three types.

关 键 词：内蒙古 气温 大气环流 

分 类 号：P468[天文地球—大气科学及气象学]