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http://dx.doi.org/10.11108/kagis.2020.23.3.220

Analysis of Nocturnal Cold Air Flow Characteristics for Setting of Tropical Night Response Zone in Daegu  

SEO, Bo-Yong (Dept. of Environmental Science, Keimyung University)
LEE, Sang-Beom (Raum Inc.)
GWON, Soon-Beom (Dept. of Environmental Science, Keimyung University)
CHA, Jae-Gyu (Division of Ecosystem Assessment, National Institute of Ecology)
JUNG, Eung-Ho (Dept. of Global Environment, Keimyung University)
Publication Information
Journal of the Korean Association of Geographic Information Studies / v.23, no.3, 2020 , pp. 220-235 More about this Journal
Abstract
Heat wave generation in cities is basically affected by global warming, but it is further exacerbated by the impact of artificial heat emission and heat accumulation in the city. In particular, the effects of urban heat waves directly affect the occurrence of tropical nights. Basically, however, the choice of countermeasures against tropical nights is very limited compared to the daytime heat wave response. The purpose of this study was to analyze the characteristics of cold air flow at night as a countermeasure against tropical nights in Daegu Metropolitan City and to suggest its spatial applicability. As a research method, the spatial characteristics (flow velocity, flow rate, flow direction and range) of cold air flow in Daegu were quantitatively analyzed using KLAM_21, a cold air flow analysis program. As a result of the analysis, it was found that cold air generation and flow in the surrounding mountains of Daegu Metropolitan City was very active, but the inflow was limited to the urban area, which has tropical nights. However, it has been shown that the flow of cold air flowing from the surrounding mountains is very active in some urban areas, so it has spatial conditions that are very effective in countering tropical nights. If these spatial conditions are used for the urban planning, it will be very useful to develop countermeasures for tropical nights.
Keywords
Tropical Nights; Cold Air Generation and Flow; Wind Corridor; Urban Planning; KLAM_21;
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Times Cited By KSCI : 8  (Citation Analysis)
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