Analysis of Heat Island Characteristics of Small and Medium-sized Cities Based on GIS and RS——Take Luohe City as an Example
With the improvement of modern living standards,the adjustment of industrial structure in small and medium-sized cities,and the earth-shaking changes in people's clothing,food,housing and transportation,the urban heat island problem of small and medium-sized cities is becoming increasingly prominent.In order to draw attention to the heat island effect of small and medium-sized cities,this paper is written.Taking Luohe City as an example,this paper integrates GIS,RS and meteorological data,and adopts meteorological heat island calculation method,split window remote sensing temperature inversion algorithm,surface heat island intensity index method(UHII)and heat island ratio index(UHPI)calculation methods to analyze urban heat island characteristics.With the increase of summer temperature in June,July and August,urban heat island characteristics are analyzed.There is no heat island effect in the underlying surface water,and the proportion of forest land and cultivated land heat island area is low,which indicates that the green vegetation of agricultural and forestry has obvious effect on alleviating the increase of land surface temperature,and the forest with high coverage is more effective.The obvious problem of heat island effect in small and medium-sized cities should be paid enough attention in urban planning and government decision-making.
geographic information systemremote sensingheat island of small and medium-sized citiesfeature analysis
NETL
NSTL
万方数据
