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Population heat exposure risk from the perspective of urban heat island spatial expansion in China during 2005-2020

文献类型：期刊论文

作者Jia, Ruoyu2; Liu, Jiawen2; He, Tong3; Han, Dongrui4; Xu, Xinliang5; Liu, Luo6; Sun, Zongyao1; Qiao, Zhi2
刊名URBAN CLIMATE
出版日期2024-07-01
卷号56页码:16
关键词Population heat exposure risk Urban heat island Spatial expansion Google earth engine China
ISSN号2212-0955
DOI10.1016/j.uclim.2024.101987
英文摘要The combined impact of global climate change and accelerated urbanization has intensified the urban heat island (UHI) effect, heightening population heat exposure risk. This study integrated MODIS LST (Land Surface Temperature), LUCC (Land Use Cover Change), GUB (Global Urban Boundaries), DEM (Digital Elevation Model), and population data to identify the spatial expansion of UHI in China from 2005 to 2020. A population-weighted urban heat island intensity (UHII) index (Ep) was proposed based on gridded UHII and population to compare the population heat exposure risk for the newly developed and pre-existing UHI under three levels of UHII. In 2020, UHI areas doubled since 2005, with infilling type exhibiting the highest UHII, while edgeexpansion type was largest, and leapfrogging type had the lowest UHII. In the summer of 2020, the Ep indices in China were 1.75 degrees C and 1.79 degrees C during daytime and nighttime, respectively, representing increases of 0.12 degrees C and 0.44 degrees C compared to 2005. For the newly developed UHI areas with UHII exceeding 2 degrees C, infilling area exhibited greater daytime population heat exposure risk, whereas leapfrogging area showed higher nighttime risk. This study established a connection between UHI spatial expansion and population exposure risk, offering the insights for mitigating urban environmental hazards in the future.
WOS关键词IMPACTS ; HEALTH ; RESILIENCE ; PATTERN ; CITIES ; SCALE
资助项目National Natural Science Foundation of China[52270187] ; National Natural Science Foundation of China[41971389] ; Natural Science Foundation of Tianjin City[21JCYBJC00390]
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:001255569600001
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Natural Science Foundation of Tianjin City
源URL[http://ir.igsnrr.ac.cn/handle/311030/206292]  
专题资源与环境信息系统国家重点实验室_外文论文
通讯作者Qiao, Zhi
作者单位1.Tianjin Univ, Sch Architecture, Tianjin 300272, Peoples R China
2.Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300350, Peoples R China
3.Beijing Normal Univ, Sch Environm, Beijing 100875, Peoples R China
4.Shandong Acad Agr Sci, Inst Agr Informat & Econ, Jinan 250100, Peoples R China
5.Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
6.South China Agr Univ, Guangdong Prov Key Lab Land Use & Consolidat, Guangzhou 510642, Peoples R China
推荐引用方式
GB/T 7714		 Jia, Ruoyu,Liu, Jiawen,He, Tong,et al. Population heat exposure risk from the perspective of urban heat island spatial expansion in China during 2005-2020[J]. URBAN CLIMATE,2024,56:16.
APA Jia, Ruoyu.,Liu, Jiawen.,He, Tong.,Han, Dongrui.,Xu, Xinliang.,...&Qiao, Zhi.(2024).Population heat exposure risk from the perspective of urban heat island spatial expansion in China during 2005-2020.URBAN CLIMATE,56,16.
MLA Jia, Ruoyu,et al."Population heat exposure risk from the perspective of urban heat island spatial expansion in China during 2005-2020".URBAN CLIMATE 56(2024):16.

入库方式： OAI收割

来源：地理科学与资源研究所

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