Time Series Evolution Analysis of Urban Heat Island Effect in Mianyang City Based on Radiation Transmission Model
[Purposes]This paper aims to explore the changes and development trend of surface tempera-ture in Mianyang City from 2017 to 2021.[Methods]Taking Mianyang City as an example,the surface temperature of Mianyang City was inverted by using the 2017,2019 and 2021 LandsSAT8 remote sens-ing data.[Findings]The results show that:①The characteristics of urban heat island effect in Mianyang City are obvious,and each grade is mainly clustered,with the most obvious distribution of strong heat is-land and strong green island.② From 2017 to 2021,the surface temperature showed an upward trend,and the strong heat island area and heat island area were mainly distributed in the central area of the city,and expanded along the river;Green Island District is mainly distributed in the northwest of Anzhou,the northern alpine jungle,Fujiang River,Anchang River,Xianhai Lake and other areas.③From 2017 to 2021,from the migration of gravity center of the middle district,heat island and strong heat island area,it was found that the city of Mianyang City developed rapidly along the Fujiang River and the Anchang River to the southeast and northwest.[Conclusions]The research results can provide a reference for urban con-struction development and ecological planning in Mianyang City.
Mianyang Citysurface temperatureradiation transmission modelheat island effect
万方数据
维普
