干旱区生态环境知识资源中心(Arid): Strong regulation of daily variations in nighttime surface urban heat islands by meteorological variables across global cities

Arid

DOI	10.1088/1748-9326/ac4630
	Strong regulation of daily variations in nighttime surface urban heat islands by meteorological variables across global cities
	She, Yihang; Liu, Zihan; Zhan, Wenfeng; Lai, Jiameng; Huang, Fan
通讯作者	Zhan, WF
来源期刊	ENVIRONMENTAL RESEARCH LETTERS
ISSN	1748-9326
出版年	2022
卷号	17 期号:1
英文摘要	Knowledge of the day-to-day dynamics of surface urban heat island (SUHI) as well as their underlying determinants is crucial to a better design of effective heat mitigation. However, there remains a lack of a globally comprehensive investigation of the responsiveness of SUHI variations to meteorological variables. Based on the MODIS land surface temperature and auxiliary data in 2017, here we investigated 10 000+ cities worldwide to reveal day-to-day SUHI intensity (SUHII) variations (termed as SUHIIdv) in response to meteorological variables using Google Earth Engine. We found that: (a) meteorological variables related to the thermal admittance, e.g. precipitation, specific humidity (SH) and soil moisture (SM) (represented by daily temperature range in rural area, DTRr), reveal a larger regulation on SUHIIdv than those related to the air conditions (e.g. wind speed and near-surface air temperature) over a global scale. (b) Meteorological regulations on SUHIIdv can differ greatly by background climates. The control of SH on SUHIIdv is significantly strengthened in arid zones, while that of wind speed is weakened prominently in equatorial zones. SUHIIdv is more sensitive to SM in cities with higher background temperatures. (c) All meteorological variables, except that related to SM (DTRr), show larger impact on SUHIIdv with antecedent precipitation over the global scale. Precipitation is observed to mitigate the SUHIIdv globally, and such effects are even more pronounced in equatorial and arid zones. We consider that our findings should be helpful in enriching the knowledge of SUHI dynamics on multiple timescales.
英文关键词	surface urban heat island land surface temperature thermal remote sensing MODIS Google Earth Engine meteorological variable
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000740828200001
WOS关键词	CLIMATE ; SCALE ; WATER ; WIND
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376821
推荐引用方式 GB/T 7714	She, Yihang,Liu, Zihan,Zhan, Wenfeng,et al. Strong regulation of daily variations in nighttime surface urban heat islands by meteorological variables across global cities[J],2022,17(1).
APA	She, Yihang,Liu, Zihan,Zhan, Wenfeng,Lai, Jiameng,&Huang, Fan.(2022).Strong regulation of daily variations in nighttime surface urban heat islands by meteorological variables across global cities.ENVIRONMENTAL RESEARCH LETTERS,17(1).
MLA	She, Yihang,et al."Strong regulation of daily variations in nighttime surface urban heat islands by meteorological variables across global cities".ENVIRONMENTAL RESEARCH LETTERS 17.1(2022).