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Spatiotemporal patterns of urban thermal environment and comfort across 180 cities in summer under China’s rapid urbanization
BACKGROUND: China is considered as the largest and most rapidly urbanizing nation in the world. However, possible changes of urban thermal environment and comfort under the rapid urbanization in China still remain poorly understood at a national scale. METHODS: Based on the data collected from 180 c...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
PeerJ Inc.
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6681799/ https://www.ncbi.nlm.nih.gov/pubmed/31396454 http://dx.doi.org/10.7717/peerj.7424 |
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author | Ren, Zhibin Fu, Yao Du, Yunxia Zhao, Hongbo |
author_facet | Ren, Zhibin Fu, Yao Du, Yunxia Zhao, Hongbo |
author_sort | Ren, Zhibin |
collection | PubMed |
description | BACKGROUND: China is considered as the largest and most rapidly urbanizing nation in the world. However, possible changes of urban thermal environment and comfort under the rapid urbanization in China still remain poorly understood at a national scale. METHODS: Based on the data collected from 180 cities in 1990, 2005, and 2015 in China, the spatiotemporal patterns of urban thermal environment and comfort in summer and their relationships with urbanization variables were investigated in this study. RESULTS: Our results indicate that urban thermal environment has changed greatly during the 25 years. Furthermore, the changes of urban climate in different regions are inconsistent. The Physiological Equivalent Temperature (PET) at most cities (81%) in China increased from 1990 to 2015, which suggested that urban thermal comfort in China was also deteriorating during the 25 years. However, while the PET of some cities in China began to decrease from 2005 to 2015, there were still 33% of cities that had positive trends,which mainly located in North region. Urbanization resulted in a significant influence on urban climate. Compared to southern cities, northern cities were more sensitive to urbanization impact. The most important contribution to increasing of PET for urbanization variables is gross domestic product, followed by urban population. The analysis results reveal changing patterns of urban thermal comfort in China during summer season. It can help urban government and managers improve urban thermal environment and comfort. |
format | Online Article Text |
id | pubmed-6681799 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | PeerJ Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-66817992019-08-08 Spatiotemporal patterns of urban thermal environment and comfort across 180 cities in summer under China’s rapid urbanization Ren, Zhibin Fu, Yao Du, Yunxia Zhao, Hongbo PeerJ Climate Change Biology BACKGROUND: China is considered as the largest and most rapidly urbanizing nation in the world. However, possible changes of urban thermal environment and comfort under the rapid urbanization in China still remain poorly understood at a national scale. METHODS: Based on the data collected from 180 cities in 1990, 2005, and 2015 in China, the spatiotemporal patterns of urban thermal environment and comfort in summer and their relationships with urbanization variables were investigated in this study. RESULTS: Our results indicate that urban thermal environment has changed greatly during the 25 years. Furthermore, the changes of urban climate in different regions are inconsistent. The Physiological Equivalent Temperature (PET) at most cities (81%) in China increased from 1990 to 2015, which suggested that urban thermal comfort in China was also deteriorating during the 25 years. However, while the PET of some cities in China began to decrease from 2005 to 2015, there were still 33% of cities that had positive trends,which mainly located in North region. Urbanization resulted in a significant influence on urban climate. Compared to southern cities, northern cities were more sensitive to urbanization impact. The most important contribution to increasing of PET for urbanization variables is gross domestic product, followed by urban population. The analysis results reveal changing patterns of urban thermal comfort in China during summer season. It can help urban government and managers improve urban thermal environment and comfort. PeerJ Inc. 2019-08-02 /pmc/articles/PMC6681799/ /pubmed/31396454 http://dx.doi.org/10.7717/peerj.7424 Text en ©2019 Ren et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. |
spellingShingle | Climate Change Biology Ren, Zhibin Fu, Yao Du, Yunxia Zhao, Hongbo Spatiotemporal patterns of urban thermal environment and comfort across 180 cities in summer under China’s rapid urbanization |
title | Spatiotemporal patterns of urban thermal environment and comfort across 180 cities in summer under China’s rapid urbanization |
title_full | Spatiotemporal patterns of urban thermal environment and comfort across 180 cities in summer under China’s rapid urbanization |
title_fullStr | Spatiotemporal patterns of urban thermal environment and comfort across 180 cities in summer under China’s rapid urbanization |
title_full_unstemmed | Spatiotemporal patterns of urban thermal environment and comfort across 180 cities in summer under China’s rapid urbanization |
title_short | Spatiotemporal patterns of urban thermal environment and comfort across 180 cities in summer under China’s rapid urbanization |
title_sort | spatiotemporal patterns of urban thermal environment and comfort across 180 cities in summer under china’s rapid urbanization |
topic | Climate Change Biology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6681799/ https://www.ncbi.nlm.nih.gov/pubmed/31396454 http://dx.doi.org/10.7717/peerj.7424 |
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