Study on the Urban Heat Island phenomenon in small city using the surface temperature of the homestead woodland

Creation of air temperature distribution map around the urbanized area of Tonami City using airborne thermal infrared data

Abstract

This study aimed to examine the thermal condition in and around a small city using airborne MSS data. Observation by airborne multi-spectral scanner (MSS) was performed for the Tonami district, Toyama, Japan. The highest temperatures of treetop of homestead woodland in Tonami were considered to be equal to air temperature from the viewpoint of the heat balance, so were extracted and plotted in the map. The result indicated that the temperatures of treetop in urban district were 0.5 to 1.0 degrees higher than them of surrounding areas, and the influences of urban heat island phenomenon were observed in the range of 1km from the boundary in leeward.