The urban heat island effect and city contiguity.
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| Title: | The urban heat island effect and city contiguity. |
|---|---|
| Authors: | Debbage, Neil1 debbage@uga.edu, Shepherd, J. Marshall1 |
| Source: | Computers, Environment & Urban Systems. Nov2015, Vol. 54, p181-194. 14p. |
| Subjects: | Urban heat islands, Urban ecology (Sociology), Urban morphology, Urbanization, Urban growth, Cities & towns |
| Abstract: | The spatial configuration of cities can affect how urban environments alter local energy balances. Previous studies have reached the paradoxical conclusions that both sprawling and high-density urban development can amplify urban heat island intensities, which has prevented consensus on how best to mitigate the urban heat island effect via urban planning. To investigate this apparent dichotomy, we estimated the urban heat island intensities of the 50 most populous cities in the United States using gridded minimum temperature datasets and quantified each city's urban morphology with spatial metrics. The results indicated that the spatial contiguity of urban development, regardless of its density or degree of sprawl, was a critical factor that influenced the magnitude of the urban heat island effect. A ten percentage point increase in urban spatial contiguity was predicted to enhance the minimum temperature annual average urban heat island intensity by between 0.3 and 0.4 °C. Therefore, city contiguity should be considered when devising strategies for urban heat island mitigation, with more discontiguous development likely to ameliorate the urban heat island effect. Unraveling how urban morphology influences urban heat island intensity is paramount given the human health consequences associated with the continued growth of urban populations in the future. [ABSTRACT FROM AUTHOR] |
| Copyright of Computers, Environment & Urban Systems is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 111566779 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: The urban heat island effect and city contiguity. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Debbage%2C+Neil%22">Debbage, Neil</searchLink><relatesTo>1</relatesTo><i> debbage@uga.edu</i><br /><searchLink fieldCode="AR" term="%22Shepherd%2C+J%2E+Marshall%22">Shepherd, J. Marshall</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Computers%2C+Environment+%26+Urban+Systems%22">Computers, Environment & Urban Systems</searchLink>. Nov2015, Vol. 54, p181-194. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Urban+heat+islands%22">Urban heat islands</searchLink><br /><searchLink fieldCode="DE" term="%22Urban+ecology+%28Sociology%29%22">Urban ecology (Sociology)</searchLink><br /><searchLink fieldCode="DE" term="%22Urban+morphology%22">Urban morphology</searchLink><br /><searchLink fieldCode="DE" term="%22Urbanization%22">Urbanization</searchLink><br /><searchLink fieldCode="DE" term="%22Urban+growth%22">Urban growth</searchLink><br /><searchLink fieldCode="DE" term="%22Cities+%26+towns%22">Cities & towns</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The spatial configuration of cities can affect how urban environments alter local energy balances. Previous studies have reached the paradoxical conclusions that both sprawling and high-density urban development can amplify urban heat island intensities, which has prevented consensus on how best to mitigate the urban heat island effect via urban planning. To investigate this apparent dichotomy, we estimated the urban heat island intensities of the 50 most populous cities in the United States using gridded minimum temperature datasets and quantified each city's urban morphology with spatial metrics. The results indicated that the spatial contiguity of urban development, regardless of its density or degree of sprawl, was a critical factor that influenced the magnitude of the urban heat island effect. A ten percentage point increase in urban spatial contiguity was predicted to enhance the minimum temperature annual average urban heat island intensity by between 0.3 and 0.4 °C. Therefore, city contiguity should be considered when devising strategies for urban heat island mitigation, with more discontiguous development likely to ameliorate the urban heat island effect. Unraveling how urban morphology influences urban heat island intensity is paramount given the human health consequences associated with the continued growth of urban populations in the future. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Computers, Environment & Urban Systems is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.compenvurbsys.2015.08.002 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 181 Subjects: – SubjectFull: Urban heat islands Type: general – SubjectFull: Urban ecology (Sociology) Type: general – SubjectFull: Urban morphology Type: general – SubjectFull: Urbanization Type: general – SubjectFull: Urban growth Type: general – SubjectFull: Cities & towns Type: general Titles: – TitleFull: The urban heat island effect and city contiguity. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Debbage, Neil – PersonEntity: Name: NameFull: Shepherd, J. Marshall IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2015 Type: published Y: 2015 Identifiers: – Type: issn-print Value: 01989715 Numbering: – Type: volume Value: 54 Titles: – TitleFull: Computers, Environment & Urban Systems Type: main |
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