中国西北地区与东部季风区秋季气温对比  

Comparison of Autumn Temperatures between Arid Area of Northwest China and Monsoon Area of East China

作　　者：张天峰[1,2] 王劲松[1] 张洪芬 黄斌 毛玉琴 

机构地区：[1]中国气象局兰州干旱气象研究所,甘肃省干旱气候变化与减灾重点实验室,中国气象局干旱气候变化与减灾重点开放实验室,甘肃兰州730020 [2]甘肃省庆阳市气象局,甘肃庆阳745000

出　　处：《干旱区研究》2010年第1期121-127,共7页Arid Zone Research

基　　金：国家自然科学基金项目(40775057)资助

摘　　要：选取1962-2006年中国西北地区139个气象站、东部季风区378个气象站的秋季平均气温资料,采用相关分析、周期分析、线性趋势分析,分别对西北干旱区、东部季风区秋季平均气温时空分布特征作了初步对比,分析了西北干旱区与东部同纬度季风区气温变化特征的异同。结果表明:西北干旱区和东部季风区秋季气温主要受大尺度天气系统影响,其历年变化趋势基本一致;在全球变暖的背景下,西北干旱区和东部季风区气温逐步升高的趋势是一致的,并且气温升高有进一步加剧的趋势。西北干旱区增温幅度0.36℃/10 a,东部季风区增温幅度0.31℃/10 a,西北干旱区升温的幅度明显高于东部季风区,是气候变化的敏感区和脆弱区。This paper compares the spatiotemporal distribution of average autumn temperature in arid area of northwest China and monsoon area of east China using the average autumn temperature data observed by 139 meteorological stations in arid area of northwest China and 378 ones in monsoon area of east China during the period from 1962 to 2006 by applying the correlation analysis, cycle analysis, linear trend analysis and correlation analysis of climate trends, and also analyzes the similarity and difference of temperature change characteristics in the regions with the same latitudes. The results show that the autumn temperatures in arid area of northwest China and monsoon area of east China are affected by westerly large weather systems, also by latitudes, terrain and altitude of the regions, and obviously by monsoon and sea-field distribution in monsoon area of east China. Under global warming, temperature is gradually increased in these two regions. Linear trend calculation shows that the temperature increase range in arid area of northwest China （0.36 ℃/10 a） is higher than that in monsoon of east China （0.31 ℃/ 10 a） , which reveals that the arid area of northwest China is more sensitive to climate change than the monsoon area of east China.

关 键 词：西北地区 东部地区 季风区 秋季 平均气温 气候变化 

分 类 号：P467[天文地球—大气科学及气象学]