干旱区生态环境知识资源中心(Arid): Water-energy-vegetation nexus explain global geographical variation in surface urban heat island intensity

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DOI	10.1016/j.scitotenv.2023.165158
	Water-energy-vegetation nexus explain global geographical variation in surface urban heat island intensity
	Liao, Jiayuan; Dai, Yongjiu; An, Le; Hang, Jian; Shi, Yurong; Zeng, Liyue
通讯作者	Hang, J
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2023
卷号	895
英文摘要	Surface urban heat island (SUHI) is a key climate risk associated with urbanization. Previous case studies have suggested that precipitation (water), radiation (energy), and vegetation have important effects on urban warming, but there is a lack of research that combines these factors to explain the global geographic variation in SUHI intensity (SUHII). Here, we utilize remotely sensed and gridded datasets to propose a new water-energy-vegetation nexus concept that explains the global geographic variation of SUHII across four climate zones and seven major regions. We found that SUHII and its frequency increase from arid zones (0.36 & PLUSMN; 0.15 & DEG;C) to humid zones (2.28 & PLUSMN; 0.10 & DEG;C), but become weaker in the extreme humid zones (2.18 & PLUSMN; 0.15 & DEG;C). We revealed that from semi-arid/humid to humid zones, high precipitation is often coupled with high incoming solar radiation. The increased solar radiation can directly enhance the energy in the area, leading to higher SUHII and its frequency. Although solar radiation is high in arid zones (mainly in West, Central, and South Asia), water limitation leads to sparse natural vegetation, suppressing the cooling effect in rural areas and resulting in lower SUHII. In extreme humid regions (mainly in tropical areas), incoming solar radiation tends to flatten out, which, coupled with increased vegetation as hydrothermal conditions become more favorable, leads to more latent heat and reduces the intensity of SUHI. Overall, this study offers empirical evidence that the water-energy-vegetation nexus highly explains the global geographic variation of SUHII. The results can be used by urban planners seeking optimal SUHI mitigation strategies and for climate change modeling work.
英文关键词	Urban heat island Geographical variation Water Energy Vegetation Nexus
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001037741100001
WOS关键词	LOCAL BACKGROUND CLIMATE ; LAND-USE ; COOL PAVEMENTS ; TEMPERATURE ; SCALE ; URBANIZATION ; VARIABILITY
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398539
推荐引用方式 GB/T 7714	Liao, Jiayuan,Dai, Yongjiu,An, Le,et al. Water-energy-vegetation nexus explain global geographical variation in surface urban heat island intensity[J],2023,895.
APA	Liao, Jiayuan,Dai, Yongjiu,An, Le,Hang, Jian,Shi, Yurong,&Zeng, Liyue.(2023).Water-energy-vegetation nexus explain global geographical variation in surface urban heat island intensity.SCIENCE OF THE TOTAL ENVIRONMENT,895.
MLA	Liao, Jiayuan,et al."Water-energy-vegetation nexus explain global geographical variation in surface urban heat island intensity".SCIENCE OF THE TOTAL ENVIRONMENT 895(2023).