A study of the relation between the land use types and urban heat island effect in Guangzhou city based on remote sensing

摘要

Urban heat island effect refers to the phenomenon of urban temperatures being higher than the suburban. relation of the city land use and the urban heat island effect has gradually become an important environmental problem that arousing general concern. Remote sensed data has been an effective measure monitoring and analyzing the land use change and the urban heat island effect. This paper adopted the maximum likelihood classification to divide the Guangzhou City land use types into cultivated land, forest, water, bare land and built-up using Landsat TM data 0f 1990, 1998 and 2005; The city heat island region was indicated by the urban brightness temperature, furthermore, the urban brightness temperature was retrieved by the band 6 of Landsat TM, the ground brightness temperature map was achieved. Based on GIS, this paper analyzed the relation of the urban heat island effect and the land use types in Guangzhou City. The aim of this paper is to provide the basic information for improving environmental quality and the rational land use pattern in Guangzhou City.