미기상 관측을 통한 하절기 도심과 외곽의 열환경 비교

Abstract

This study which is the fundamental work to investigate the property of urban climate compared the property of thermal environment in the downtown location and the outskirt site based on the field observation in the summer. We analysed thermal environment in the downtown location mainly by distributional characteristics during day and night with changes and correlation analysis of the air temperature, the globe temperature and the surface temperature through the simultaneous observation of the property of thermal environment at two places in real time. The summary of finding in this study is as follows. ①It is observed on the day chosen by sample that diurnal air temperature range in the downtown location is 22.3∼34.9℃, and diurnal air temperature range in the Outskirt site is 20.0∼34.3℃, so, we found that the diurnal air temperature range in the outskirt site is 1.7℃higher than in the downtown location. ②In comparison of the globe temperature after sunset, we found the change of more sudden temperature drops in the outskirt site than in the downtown location. ③It is observed on the days chosen by sample that the average of globe temperature range is 1.1℃, the average of surface temperature range is 1.0℃, and air temperature range is 2.0℃, thus, the we found that the average of air temperature is 1.0℃ higher than globe temperature and the surface temperature. ④After the consideration of air temperature and globe temperature distribution, the highest temperature reaching time of globe temperature is one hour earlier than air temperature in the downtown location, on the other hand, although the highest temperature reaching time of globe temperature in the outskirt sites is one hour later than in the downtown location, the timelag found in the downtown location was not found in the outskirt site.