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KMID : 1024520210300100821
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Journal of the Environmental Sciences
2021 Volume.30 No. 10 p.821 ~ p.831
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A Study on the Relationship between the Summertime Night Cooling Rate and Meteorological Elements in Daegu
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Kim Ha-Young
Kim Hae-Dong
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Abstract
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The relationship between night cooling rate and meteorological elements was investigated over the past five years (2016-2020), using weather data from the new (Daegu(143)) and old (Shinam(860)) Daegu Regional Meteorological Agency located in the suburban and urban regions, respectively. There was a correlation between the total daily amount of solar radiation (Stot) and the night cooling rate in the both regions. However, a higher correlation was observed at the new Daegu Regional Meteorological Agency station (Daegu(143)). In particular, data from the new Daegu Regional Meteorological Administration's observatory, which experiences a low thermal storage effect caused by artificial structures, showed a higher correlation between nighttime cooling and weather factors. The reason for this is that the lesser the heat storage effect caused by the artificial structures, the better the effect of surface radiation cooling on temperature reduction. These findings confirm that the correlation between night cooling and weather factors can be used to assess the impact of artificial structures in cities.
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KEYWORD
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Night cooling amount, Thermal storage effect, Artificial structure
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