气候变化领域集成服务门户(CCPortal): Meteorological controls on daily variations of nighttime surface urban heat islands

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DOI	10.1016/j.rse.2020.112198
	Meteorological controls on daily variations of nighttime surface urban heat islands
	Lai J.; Zhan W.; Voogt J.; Quan J.; Huang F.; Zhou J.; Bechtel B.; Hu L.; Wang K.; Cao C.; Lee X.
发表日期	2021
ISSN	00344257
卷号	253
英文摘要	Most previous studies of surface urban heat islands (SUHIs) have focused solely on their controlling factors on a seasonal/annual timescale, while the controls on daily variations are largely unknown. By extracting the daily variations of nighttime SUHI features using the Gaussian model and investigating their correlations with various explanatory factors, we have attempted to determine the controls on SUHIs on a daily-basis over Chinese cities. Specific controls of weather conditions on the intensity, extent, shape, and centroid of the SUHIs were identified. Our results show that: (1) SUHI intensity (SUHII) was considerably more sensitive to weather conditions than the SUHI footprint (i.e., extent, shape, and centroid). (2) Meteorological variables including relative humidity, accumulated precipitation, and aerosol optical depth, had the greatest impact on SUHI intensity; whereas factors related to temperature fluctuations (day-to-day fluctuations of surface and air temperature) were the main factors influencing SUHI extent, shape, and the direction in which SUHI centroid varies. (3) Antecedent precipitation substantially impacted the subsequent SUHIs under clear-skies, changing both the SUHI itself and its sensitivity to other factors. Typically, the clear-sky SUHIs directly following rainfall showed a higher dependence on the relative humidity, soil moisture and aerosol, but were less affected by wind. (4) The meteorological contributions to the daily nighttime SUHIIs varied among Chinese cities with different bioclimatic conditions. In general, they were stronger in temperate zones than in subtropical zones. Our results provide an improved understanding of the controls on SUHIs on a daily timescale, as well as a foundation for predicting daily SUHIs based on the influencing meteorological variables. © 2020 Elsevier Inc.
英文关键词	Gaussian model; Land surface temperature; MODIS; Remote sensing; Surface urban heat island; Weather conditions
语种	英语
scopus关键词	Aerosols; Meteorology; Soil moisture; Aerosol optical depths; Air temperature; Chinese cities; Controlling factors; Daily variations; Meteorological variables; Surface urban heat islands; Temperature fluctuation; Atmospheric temperature; aerosol; climate conditions; diurnal variation; heat island; meteorology; numerical model; soil moisture; timescale; China
来源期刊	Remote Sensing of Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179025
作者单位	Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, Nanjing, Jiangsu 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China; Department of Geography, University of Western Ontario, London, ON N6A 5C2, Canada; State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China; School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu, 611731, China; Department of Geography, Ruhr-University Bochum, Bochum, 44801, Germany; Department of Atmospheric Science, University of Alabama in HuntsvilleAL 35899, United States; State Key Laboratory of Earth Surface Processes and Resource Ecology, College of Global Change and Earth System Science, Beijing Normal ...
推荐引用方式 GB/T 7714	Lai J.,Zhan W.,Voogt J.,et al. Meteorological controls on daily variations of nighttime surface urban heat islands[J],2021,253.
APA	Lai J..,Zhan W..,Voogt J..,Quan J..,Huang F..,...&Lee X..(2021).Meteorological controls on daily variations of nighttime surface urban heat islands.Remote Sensing of Environment,253.
MLA	Lai J.,et al."Meteorological controls on daily variations of nighttime surface urban heat islands".Remote Sensing of Environment 253(2021).