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KMID : 1024520140230091619
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Journal of the Environmental Sciences
2014 Volume.23 No. 9 p.1619 ~ p.1626
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Investigation of Urban High Temperature Phenomenon in Summer using the High Density Ground Monitoring System in Daegu Metropolitan Area
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Kim Sang-Heon
Cho Chang-Bum
Kim Hae-Dong
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Abstract
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We analyzed diurnal variations in the surface air temperature using the high density urban climate observation
network in Daegu metropolitan city, the representative basin-type city in Korea, in summer, 2013. We used a total of 28
air temperature observation points data(16 thermometers and 12 AWSs). From the distribution of monthly average air
temperature, air temperature at the center of Daegu was higher than the suburbs. Also, the days of daily minimum air
temperature more than or equal to 25 and daily maximum air temperature more than or equal to 35 at the schools
near the center of Daegu was more than those at other schools. This tendency appeared more clearly on the days of daily
minimum air temperature more than or equal to 25 . Also, the air temperature near the center of the city was higher
than that of the suburbs in the early morning. Thus it was indicated that the air temperature was hard to decrease as the
bottom of the basin. From these results, the influence of urbanization to the formation of the daily minimum temperature
in Daegu was indicated.
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KEYWORD
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Urban climate, Basin-type city, Urbanization, Daily minimum temperature
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