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http://dx.doi.org/10.14249/eia.2019.28.1.23

Urban Street Planting Scenarios Simulation for Micro-scale Urban Heat Island Effect Mitigation in Seoul  

Kwon, You Jin (Interdisciplinary Program in Landscape Architecture, Seoul National University)
Lee, Dong Kun (Department of Landscape Architecture and Rural System Engineering, Seoul National University)
Ahn, Saekyul (Graduate School, Seoul National University)
Publication Information
Journal of Environmental Impact Assessment / v.28, no.1, 2019 , pp. 23-34 More about this Journal
Abstract
Global warming becomes a serious issue that poses subsidiary issues like a sea level rise or a capricious climate over the world. Because of severe heat-wave of the summer in Korea in 2016, a big attention has been focused on urban heat island since then. Not just about heat-wave itself, many researches have been concentrated on how to adapt in this trendy warming climate and weather in a small scope. A big part of existing studies is mitigating "Urban Heat Island effect" and that is because of huge impervious surface in urban area where highly populated areas do diverse activities. It is a serious problem that this thermal context has a high possibility causing mortality by heat vulnerability. However, there have been many articles of a green infrastructures' cooling impact in summer. This research pays attention to measure cooling effect of a street planting considering urban canyon and type of green infrastructures in neighborhood scale. This quantitative approach was proceeded by ENVI-met simulation with a spatial scope of a commercial block in Seoul, Korea. We found the dense double-row planting is more sensitive to change in temperature than that of the single-row. Among the double-row planting scenarios, shrubs which have narrow space between the plant and the land surface were found to store heat inside during the daytime and prevent emitting heat so as to have a higher temperature at night. The quantifying an amount of vegetated spaces' cooling effect research is expected to contribute to a study of the cost and benefit for the planting scenarios' assessment in the future.
Keywords
Urban canyon; Heat balance; ENVI-met; Heat wave; Cooling impact;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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