西安城市热岛效应及气象因素分析  

Urban Heat Island Effect and Meteorologic Factors in Xi'an

作　　者：刘转年[1] 阴秀菊[2] 

机构地区：[1]西安科技大学地质与环境工程系,710054 [2]陕西省气象台,710014

出　　处：《干旱区资源与环境》2008年第2期87-90,共4页Journal of Arid Land Resources and Environment

摘　　要：根据西安市区和郊区7个站点18年的气候资料,分析了西安城市热岛效应的年、季、月的变化特征。1985-2003年,西安城市热岛效应存在且随时间推移呈现增大的趋势。市区和郊区年平均温差为0.485℃,2002年温差最大为0.983℃,1990年市区与郊区温差最小,仅为0.2℃。西安城市热岛效应春季最强,秋季最弱。利用灰色关联度分析法,分析了影响西安城市热岛效应的主要气象因子,影响顺序为：相对湿度〉日照时数〉降雨量〉风速。The urban heat island of Xi＇an city, Shaanxi Province, was analyzed using the data from seven automantic stations at a rural and six urban site, from 1985 to 2003. The results showed that the urban heat island strengthened in the recent 18 years, and the strongest period was in Spring , the weakest period was in Autumn. The annual averge heat island intensity was 0.485℃. The maximum heat island intensity（0.983℃ ） was observed in 2002 ,and the minimum（0.2℃ ） was observed in 1994. According to the gray analysis the effect of meteorologic factors on urban heat island was relative humidity, sunshine hours, rainfall, wind speed.

关 键 词：西安 热岛效应 灰色关联度分析 

分 类 号：P423[天文地球—大气科学及气象学]