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  Context sensitivity of surface urban heat island at the local and regional scales

Li, Y., Zhou, B., Glockmann, M., Kropp, J. P., Rybski, D. (2021): Context sensitivity of surface urban heat island at the local and regional scales. - Sustainable Cities and Society, 74, 103146.
https://doi.org/10.1016/j.scs.2021.103146

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Item Permalink: https://publications.pik-potsdam.de/pubman/item/item_25796 Version Permalink: https://publications.pik-potsdam.de/pubman/item/item_25796_3
Genre: Journal Article

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 Creators:
Li, Yunfei1, Author              
Zhou, Bin1, Author              
Glockmann, Manon1, Author              
Kropp, Jürgen P.1, Author              
Rybski, Diego1, Author              
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1Potsdam Institute for Climate Impact Research, ou_persistent13              

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 Abstract: In this study we analysed the multi-annual (2002–2011) average summer surface urban heat island (SUHI) intensity of the 5000 largest urban clusters in Europe. We investigated its relationship with a proposed Gravitational Urban Morphology (GUM) index that can capture the local context sensitivity of SUHI. The GUM index was found to be an effective predictor of SUHI intensity. Together with other urban factors we built different multivariate linear regression models and a climate space based geographically weighted regression (GWR) model that can better predict SUHI intensity. As the GWR model captures the variation of influence from different urban factors on SUHI, it considerably outperformed linear models in predicting SUHI intensity in terms of and other statistical criteria. By investigating the variation of GWR coefficients against background climate factors, we further built a nonlinear regression model that takes into account the sensitivity of SUHI to regional climate context. The nonlinear model showed comparable performance to that of the GWR model and it prevailed against all the linear models. Our work underlines the potential of SUHI reduction through optimising urban morphology, as well as the importance of integrating future urbanisation and climate change into the implementation of urban heat mitigation strategies.

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Language(s): eng - English
 Dates: 2021-07-052021-07-212021-11
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: PIKDOMAIN: RD2 - Climate Resilience
MDB-ID: yes - 3175
Organisational keyword: RD2 - Climate Resilience
Working Group: Urban Transformations
Research topic keyword: Cities
Research topic keyword: Land use
DOI: 10.1016/j.scs.2021.103146
 Degree: -

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Title: Sustainable Cities and Society
Source Genre: Journal, SCI, Scopus
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Pages: - Volume / Issue: 74 Sequence Number: 103146 Start / End Page: - Identifier: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/sustainable-cities-and-societies
Publisher: Elsevier