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Cho, Gi-Hyoug
Sustainable Urban Plaaning and Design Lab
Research Interests
  • Urban Planning, Urban Design, Travel Behavior, Urban Heat Island , Spatial Analysis

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Examining the association between physical characteristics of green space and land Surface temperature: A case study of Ulsan, Korea

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Title
Examining the association between physical characteristics of green space and land Surface temperature: A case study of Ulsan, Korea
Author
Park, Jong-HwaCho, Gi-Hyoug
Issue Date
2016-08
Publisher
MDPI AG
Citation
SUSTAINABILITY, v.8, no.8, pp.777
Abstract
The rapid increase of impervious surfaces and the dense development that accompanies urban growth has reduced the amount of green space in urban landscapes and increased urban surface temperatures. Accordingly, the greening of urban spaces has been proposed as one approach to mitigating urban heat island (UHI) effects. To find the most practical green space design for reducing land surface temperatures (LSTs), we explored the effects of the physical characteristics of green spaces on cooling intensity and distance. The physical characteristics of green spaces were defined as shape, size, Normalized Difference Vegetation Index (NDVI), and the land-use type of their surroundings. LANDSAT 8 images were used to examine 30 green spaces in Ulsan, Korea. The analytical results showed that the cooling effect was mainly observed within 120 m of a green area and that the intensity of the cooling effects did not exceed 3.0 K. A belt-shaped green space had a greater cooling distance compared to a compact green space. We also found that the NDVI and size of a green space had a positive but non-linear association with cooling intensity.
URI
https://scholarworks.unist.ac.kr/handle/201301/20468
URL
http://www.mdpi.com/2071-1050/8/8/777
DOI
10.3390/su8080777
ISSN
2071-1050
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UEE_Journal Papers
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