Analysis of Heat Island Effect in Urumqi Based on Split Window Algorithm
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 spatiotem-poral 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.
urban heat islandsplit window algorithmsurface temperature inversionspatiotemporal evolutionUrumqi
NETL
NSTL
万方数据
