近20年重庆沙坪坝城市热岛效应变化特征  

Variation Characteristic of Heat Island Effect in Shapingba,Chongqing in Recent 20 Years

作　　者：唐晓萍 张德军 赵漫 何泽能 TANG Xiaoping;ZHANG Dejun;ZHAO Man;HE Zeneng(CMA Key Open Laboratory of Transforming Climate Resources to Economy/Chongqing Institute of Meteorological Sciences,Chongqing 401147,China;Shapingba Meteorological Bureau,Chongqing 400030,China)

机构地区：[1]中国气象局气候资源经济转化重点开放实验室/重庆市气象科学研究所,重庆401147 [2]重庆市沙坪坝区气象局,重庆400030

出　　处：《高原山地气象研究》2023年第2期105-112,共8页Plateau and Mountain Meteorology Research

基　　金：风云卫星应用先行计划(FY-APP-2021.0306);中国气象局省级气象科研所科技创新发展项目(SSFZ201819);重庆市气象局业务技术攻关项目(YWJSGG-202101,YWJSGG-202106);重庆市气象局青年基金项目(QNJJ-202209)。

摘　　要：基于MODIS地表温度产品,采用线性回归分析法和Mann-Kendall检验法,分析2002~2019年沙坪坝区城市热岛效应的时空分布特征和强度变化趋势。结果表明:沙坪坝区强热岛区主要集中在土主街道;较强热岛区分布在土主街道、丰文街道、陈家桥街道、虎溪街道、香炉山街道和曾家镇等部分区域,其热岛面积年平均值随时间呈波动上升的趋势,变化趋势相对平稳;沙坪坝区城市热岛效应具有显著的季节差异,其热岛强度依次为夏季>秋季>冬季>春季。Based on MODIS LST product,with the linear regression analysis and Mann-Kendall(M-K)test method,the spatiotem�poral distribution and the intensity variation of UHI in Shapingba from 2002 to 2019 are analyzed.The results show that the regions af�fected by strong UHI are concentrated in Tuzhu street.The relatively strong UHI areas are distributed in some street such as Tuzhu,Feng�wen,Chenjiaqiao,Huxi,etc.And the annual mean of the UHI shows a fluctuating upward trend with time,and the change trend is relat�ively stable.In addition,the UHI of Shapingba district shows a significant seasonal variation characteristic,and the intensity of UHI is summer>autumn>winter>spring.

关 键 词：MODIS 热岛效应 时空分布 沙坪坝 

分 类 号：P467[天文地球—大气科学及气象学]