基于分裂窗算法的乌鲁木齐市热岛效应分析  

Analysis of Heat Island Effect in Urumqi Based on Split Window Algorithm

作　　者：黄秋淞 何浩[1] HUANG Qiusong;HE Hao(College of Civil Engineeringand Architecture,Xinjiang University,Urumqi 830017,China)

机构地区：[1]新疆大学建筑工程学院,新疆乌鲁木齐830017

出　　处：《测绘与空间地理信息》2024年第12期66-69,77,共5页Geomatics & Spatial Information Technology

基　　金：2021年新疆维吾尔自治区自然科学基金项目——基于高光谱遥感影像的城市叶面积指数监测研究(2021D01C054)资助。

摘　　要：研究城市热岛的时空变化特征及其驱动因素,对缓解热岛效应具有现实意义。本文以乌鲁木齐为研究区,通过“分裂窗”算法反演地表温度,进而利用均值-标准差法划分热岛强度等级,并通过热岛比例指数分析热岛效应的时空变化特征,得到以下结论:通过反演地表温度,发现乌鲁木齐市地表温度呈上升趋势;从2013至2019年,乌鲁木齐市热岛区域面积逐渐扩大,2019年热岛面积相较于2013年增加3%左右,其中米东区热岛效应较为严重。本文研究结果能够为政府合理规划城市发展、缓解热岛效应提供一定的帮助。Research on the spatiotemporal change characteristics of urban heat island and its driving factorsis of practical significance to alleviate the heat island effect.In this paper,Urumqi is taken as the study area,and the“split window”algorithm is used to inverse the surface temperature,then the mean-standard deviation method is used to gradethe intensity of the heat island,and the spatiotemporal change characteristics of the heat island effect are analyzed through the heat island scale index.The following conclusions are drawn:through the inversion of the surface temperature,it is found that the surface temperature in Urumqi is on the rising trend;from 2013 to 2019,the area of Urumqi’s heat island area gradually expanded.In 2019,the area of the heat island increased by about 3%compared with 2013,and Midongdistrict’s heat island effect was more serious.The results of this study can provide some help for the government to reasonably plan urban development and alleviatethe heat island effect.

关 键 词：城市热岛 分裂窗算法 地表温度反演 时空演变 乌鲁木齐市 

分 类 号：P208[天文地球—地图制图学与地理信息工程]