1960-2009年云南高原楚雄市气候年代际变化特征及城市气候分析  

The Analysis of Climate Decadal Change Characteristics and Urban Climate about Chuxiong City of Yunnan Plateau during 1960-2009

作　　者：何萍[1] 李宏波 黄惠[3] 

机构地区：[1]楚雄师范学院地理系,楚雄675000 [2]楚雄州气象台,楚雄675000 [3]华中师范大学,武汉430079

出　　处：《地理科学进展》2011年第1期65-72,共8页Progress in Geography

基　　金：国家自然科学基金地区基金项目(40965002);云南省自然科学基金项目(2005D0077M2)

摘　　要：文章利用云南高原楚雄站、南华站、双柏站1960-2009年近50年的气温、降水、相对湿度、低云量等气象要素资料,利用常规距平法、3阶多项式拟合趋势法、5年滑动平均法分析其年代际特征及城市气候,同时对楚雄市城市气候的影响因素进行了关联度分析。结果表明:年平均气温、最高气温、最低气温在20世纪80年代有一个明显的变化,在此前,气温一直呈下降趋势,80年代后呈上升趋势。而且城郊对比也是在80年代后越来越明显,这些都说明了楚雄市的热岛效应越来越显著。从年平均相对湿度来看,呈下降趋势,说明城市干岛正在形成,城区年降水量与年平均低云量都有高于郊区的趋势,这些也就说明楚雄市的城市雨岛已经形成。By comparison of the data（1960 to 2009） of Yunnan Chuxiong and Nanhua and shuangbai in Yunnan plateau which consist of temperature,precipitation,relative humidity,low cloud and other weather data,And then use conventional anomaly method,3-order polynomial fitting trend method,5-year moving average method to analyze the decadal characteristics and the urban climate,Otherwise use gray interrelated analysis to understand the factors which influce the urban climate.It is found that the temperature of urban area has reduced before the 80s of the 20th,however,it has been rising since 80s.Otherwise the difference of temperature between urban with suburban has been becoming more and more obvious since 80s,All show that the urban heat island effect in Chuxiong has been getting more and more obvious since 1980＇ s and the urban dry island is forming now because of the average relative humidity is reducing,what＇s more,the amount of annual precipitation and average low cloud in city are more than other two station,which also shows that the urban rain island has formed yet.

关 键 词：云南高原 城市气候 年代际变化特征 灰色关联度 楚雄市 

分 类 号：P467[天文地球—大气科学及气象学]