Spatial and Temporal Effects of Built Environment on Urban Air Temperature in Seoul City, Korea: An Application of Spatial Regression Models

In this study we examined the relationships between the built environment and urban air temperature in Seoul city, Korea. We developed multivariate regression models that address the relationship between built environment characteristics and the ambient air temperature with spatial statistics techni...

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Main Authors: Sugie Lee, Jaehyun Ha, Hyemin Cho
Format: Article
Language:English
Published: Taylor & Francis Group 2017-01-01
Series:Journal of Asian Architecture and Building Engineering
Subjects:
Online Access:http://dx.doi.org/10.3130/jaabe.16.123
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author Sugie Lee
Jaehyun Ha
Hyemin Cho
author_facet Sugie Lee
Jaehyun Ha
Hyemin Cho
author_sort Sugie Lee
collection DOAJ
description In this study we examined the relationships between the built environment and urban air temperature in Seoul city, Korea. We developed multivariate regression models that address the relationship between built environment characteristics and the ambient air temperature with spatial statistics techniques. In addition, we analyzed the difference in daytime and nighttime air temperature to identify the built environment characteristics that affect the intensity of the nocturnal urban heat island effect (UHI). The large sample size of AWS locations in Seoul makes it possible to analyze the factors that influence ambient air temperature and UHI effect. The analysis results indicate that the sky view factor (SVF) and gross floor area significantly influence the daytime air temperature, while the building coverage and albedo showed strong relationships with the nocturnal air temperature. This study also demonstrated the importance of advanced spatial statistics techniques that control spatial autocorrelation and spatial heteroscedasticity in urban air temperature research. Our models confirmed the need to capture the effects of spatial autocorrelations within our spatial data. The findings of this study are valuable for understanding the complicated associations between the built environment and urban air temperature and to develop public policies to mitigate UHI effects.
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spelling doaj.art-92dba774b65b4e628eb2ec1beaa9b4252023-08-03T09:15:31ZengTaylor & Francis GroupJournal of Asian Architecture and Building Engineering1347-28522017-01-0116112313010.3130/jaabe.16.12312029066Spatial and Temporal Effects of Built Environment on Urban Air Temperature in Seoul City, Korea: An Application of Spatial Regression ModelsSugie Lee0Jaehyun Ha1Hyemin Cho2Hanyang UniversityHanyang UniversityHanyang UniversityIn this study we examined the relationships between the built environment and urban air temperature in Seoul city, Korea. We developed multivariate regression models that address the relationship between built environment characteristics and the ambient air temperature with spatial statistics techniques. In addition, we analyzed the difference in daytime and nighttime air temperature to identify the built environment characteristics that affect the intensity of the nocturnal urban heat island effect (UHI). The large sample size of AWS locations in Seoul makes it possible to analyze the factors that influence ambient air temperature and UHI effect. The analysis results indicate that the sky view factor (SVF) and gross floor area significantly influence the daytime air temperature, while the building coverage and albedo showed strong relationships with the nocturnal air temperature. This study also demonstrated the importance of advanced spatial statistics techniques that control spatial autocorrelation and spatial heteroscedasticity in urban air temperature research. Our models confirmed the need to capture the effects of spatial autocorrelations within our spatial data. The findings of this study are valuable for understanding the complicated associations between the built environment and urban air temperature and to develop public policies to mitigate UHI effects.http://dx.doi.org/10.3130/jaabe.16.123air temperaturebuilt environmenturban heat island effectautomatic weather stationsspatial statistics
spellingShingle Sugie Lee
Jaehyun Ha
Hyemin Cho
Spatial and Temporal Effects of Built Environment on Urban Air Temperature in Seoul City, Korea: An Application of Spatial Regression Models
Journal of Asian Architecture and Building Engineering
air temperature
built environment
urban heat island effect
automatic weather stations
spatial statistics
title Spatial and Temporal Effects of Built Environment on Urban Air Temperature in Seoul City, Korea: An Application of Spatial Regression Models
title_full Spatial and Temporal Effects of Built Environment on Urban Air Temperature in Seoul City, Korea: An Application of Spatial Regression Models
title_fullStr Spatial and Temporal Effects of Built Environment on Urban Air Temperature in Seoul City, Korea: An Application of Spatial Regression Models
title_full_unstemmed Spatial and Temporal Effects of Built Environment on Urban Air Temperature in Seoul City, Korea: An Application of Spatial Regression Models
title_short Spatial and Temporal Effects of Built Environment on Urban Air Temperature in Seoul City, Korea: An Application of Spatial Regression Models
title_sort spatial and temporal effects of built environment on urban air temperature in seoul city korea an application of spatial regression models
topic air temperature
built environment
urban heat island effect
automatic weather stations
spatial statistics
url http://dx.doi.org/10.3130/jaabe.16.123
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AT jaehyunha spatialandtemporaleffectsofbuiltenvironmentonurbanairtemperatureinseoulcitykoreaanapplicationofspatialregressionmodels
AT hyemincho spatialandtemporaleffectsofbuiltenvironmentonurbanairtemperatureinseoulcitykoreaanapplicationofspatialregressionmodels