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Temporal Effects of Environmental Characteristics on Urban Air Temperature: The Influence of the Sky View Factor

Author

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  • Jaehyun Ha

    (Department of Urban Planning and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea)

  • Sugie Lee

    (Department of Urban Planning and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea)

  • Cheolyeong Park

    (Department of Urban Planning and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea)

Abstract

This study examines the relationship between air temperature and urban environment indices, mainly focusing on sky view factor (SVF) in Seoul, Korea. We use air temperature data observed from 295 automatic weather stations (AWS) during the day and night in Seoul. We conduct a spatial regression analysis to capture the effect of spatial autocorrelation in our data and identify changes in the effects of SVF on air temperature, while conducting the regression model for each dataset according to the floor area ratio (FAR). The findings of our study indicate that SVF negatively affects air temperature during both day and night when other effects are controlled through spatial regression models. Moreover, we address the environmental indices associated with day-time and night-time air temperatures and identify the changing effects of SVF on air temperature according to the areal floor area ratio of the analysis datasets. This study contributes to the literature on the relationship between SVF and air temperature in high-density cities and suggests policy implications for improving urban thermal environments with regard to urban design and planning.

Suggested Citation

  • Jaehyun Ha & Sugie Lee & Cheolyeong Park, 2016. "Temporal Effects of Environmental Characteristics on Urban Air Temperature: The Influence of the Sky View Factor," Sustainability, MDPI, vol. 8(9), pages 1-15, September.
    • Handle: RePEc:gam:jsusta:v:8:y:2016:i:9:p:895-:d:77415
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    References listed on IDEAS

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    1. Younha Kim & Seung Man An & Jeong-Hee Eum & Jung-Hun Woo, 2016. "Analysis of Thermal Environment over a Small-Scale Landscape in a Densely Built-Up Asian Megacity," Sustainability, MDPI, vol. 8(4), pages 1-17, April.
    2. Jihui Yuan & Kazuo Emura & Craig Farnham, 2016. "Highly Reflective Roofing Sheets Installed on a School Building to Mitigate the Urban Heat Island Effect in Osaka," Sustainability, MDPI, vol. 8(6), pages 1-10, May.
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    Cited by:

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    2. Choi, Yeri & Lee, Sugie, 2020. "The impact of urban physical environments on cooling rates in summer: Focusing on interaction effects with a kernel-based regularized least squares (KRLS) model," Renewable Energy, Elsevier, vol. 149(C), pages 523-534.
    3. Yeri Choi & Sugie Lee & Hyunbin Moon, 2018. "Urban Physical Environments and the Duration of High Air Temperature: Focusing on Solar Radiation Trapping Effects," Sustainability, MDPI, vol. 10(12), pages 1-14, December.
    4. Patryk Antoszewski & Michał Krzyżaniak & Dariusz Świerk, 2022. "The Future of Climate-Resilient and Climate-Neutral City in the Temperate Climate Zone," IJERPH, MDPI, vol. 19(7), pages 1-60, April.
    5. Yu-Hao Lin & Kang-Ting Tsai, 2017. "Screening of Tree Species for Improving Outdoor Human Thermal Comfort in a Taiwanese City," Sustainability, MDPI, vol. 9(3), pages 1-12, February.
    6. Yoonku Kwon & Shinha Joo & Soyoung Han & Chan Park, 2017. "Mapping the Distribution Pattern of Gentrification near Urban Parks in the Case of Gyeongui Line Forest Park, Seoul, Korea," Sustainability, MDPI, vol. 9(2), pages 1-17, February.
    7. Yue Ying & Mila Koeva & Monika Kuffer & Kwabena Obeng Asiama & Xia Li & Jaap Zevenbergen, 2020. "Making the Third Dimension (3D) Explicit in Hedonic Price Modelling: A Case Study of Xi’an, China," Land, MDPI, vol. 10(1), pages 1-26, December.
    8. Nikolaos D. Proutsos & Alexandra D. Solomou & Michaela Petropoulou & Nikolaos E. Chatzipavlis, 2022. "Micrometeorological and Hydraulic Properties of an Urban Green Space on a Warm Summer Day in a Mediterranean City (Attica–Greece)," Land, MDPI, vol. 11(11), pages 1-16, November.

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