气候变化领域集成服务门户(CCPortal): Contrasting changes of urban heat island intensity during hot weather episodes

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DOI	10.1088/1748-9326/ab506b
	Contrasting changes of urban heat island intensity during hot weather episodes
	Fenner D.; Holtmann A.; Meier F.; Langer I.; Scherer D.
发表日期	2019
ISSN	17489318
卷号	14 期号:12
英文摘要	Cities typically exhibit higher air temperatures than their rural surroundings, a phenomenon known as the urban heat island (UHI) effect. Contrasting results are reported as to whether UHI intensity (UHII) is exacerbated or reduced during hot weather episodes (HWEs). This contrast is investigated for a four-year period from 2015 to 2018, utilising a set of observational data from high-quality meteorological stations, as well as from hundreds of crowdsourced citizen weather stations, located in the urban region of Berlin, Germany. It can be shown that if HWEs, defined here as the ten percent hottest days or nights during May-September, are identified via daytime conditions, or by night-time conditions at inner-city sites, then night-time UHII is exacerbated. However, if HWEs are identified via night-time conditions at rural sites, then night-time UHII is reduced. These differences in UHII change can be linked with prevalent weather conditions, namely radiation, cloud cover, wind speed, precipitation, and humidity. This highlights that, beside land cover changes, future changes in weather conditions due to climate change will control UHIIs, and thus heat-stress hazards in cities. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	Berlin; crowdsourcing; heat waves; hot weather; urban climate; urban heat island
语种	英语
scopus关键词	Climate change; Crowdsourcing; Landforms; Precipitation (meteorology); Thermal pollution; Wind; Berlin; Heat waves; Hot weather; Urban climates; Urban heat island; Atmospheric temperature; air temperature; crowdsourcing; heat island; heat wave; urban area; urban climate; weather; weather station; Berlin; Germany
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154312
作者单位	Chair of Climatology, Institute of Ecology, Technische Universitat Berlin, Rothenburgstraße 12, Berlin, D-12165, Germany; Institute of Meteorology, Freie Universitat Berlin, Carl-Heinrich-Becker-Weg 6-10, Berlin, D-12165, Germany
推荐引用方式 GB/T 7714	Fenner D.,Holtmann A.,Meier F.,et al. Contrasting changes of urban heat island intensity during hot weather episodes[J],2019,14(12).
APA	Fenner D.,Holtmann A.,Meier F.,Langer I.,&Scherer D..(2019).Contrasting changes of urban heat island intensity during hot weather episodes.Environmental Research Letters,14(12).
MLA	Fenner D.,et al."Contrasting changes of urban heat island intensity during hot weather episodes".Environmental Research Letters 14.12(2019).