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http://dx.doi.org/10.11108/kagis.2015.18.2.059

An Analysis of Rational Green Area Ratio by Land Use Types for Mitigating Heat-Island Effects  

SONG, Bong-Geun (Bureau of Ecological Conservation Research, National Institute of Ecology)
PARK, Kyung-Hun (Dept. of Environmental Engineering, Changwon National University)
Publication Information
Journal of the Korean Association of Geographic Information Studies / v.18, no.2, 2015 , pp. 59-74 More about this Journal
Abstract
The purpose of this study is to analyze reasonable green area ratios for mitigating urban heat island considering various land use types. Land uses of 5 types such as single residential, multi residential, commercial area, public facility, and industrial area were considered. Green areas were extracted from the tree attribution of land cover. Effect of urban heat island was analysed by the surface temperature of ASTER thermal infrared radiance scanned daytime and nighttime. Mitigation effect of green area at daytime was higher than nighttime. Surface temperature of green area was low in single residential at daytime. But the difference of surface temperature by each land use type was small. The effect of surface temperature mitigation of green area was lower in industrial area. The results of reasonable green area ratios for mitigating urban heat island indicate that surface temperature was the lowest with green area ratio of 40~50% in single residential, multi residential, and commercial area at daytime. Surface temperature of nighttime was not changed much by green area ratios. Therefore, the results of this study will be suggested in urban development planning to construct effectively green area for mitigating urban heat island.
Keywords
Urban Heat Island; ASTER; Surface Temperature; Green Area; GIS;
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Times Cited By KSCI : 5  (Citation Analysis)
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