气候变化领域集成服务门户(CCPortal): Spatiotemporal Evolution of Heat Wave Severity and Coverage Across the United States

CCPortal

DOI	10.1029/2020GL087097
	Spatiotemporal Evolution of Heat Wave Severity and Coverage Across the United States
	Keellings D.; Moradkhani H.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:9
英文摘要	Heat waves have pronounced impacts on human health, ecosystems, and society. Heat waves have become more frequent and intense globally and are likely to intensify further in a warming climate. Across the United States there is a warming trend in average surface temperatures, but concordant increase in heat wave severity appears absent. Limitations in heat waves studies may be responsible for limited detection of a heat wave warming signal. We track daily spatiotemporal evolution of heat waves using geometric concepts and clustering algorithms to investigate how heat manifests on the land surface. We develop a spatial metric combining heat wave frequency, magnitude, duration, and areal extent. We find mixed trends in some individual heat wave characteristics across the United States during 1981–2018. However, exploration of the spatiotemporal evolution of combined heat wave characteristics shows considerable increases during this period and indicates a substantial increase in heat wave hazard across the United States. ©2020. The Authors.
英文关键词	Clustering algorithms; Combined heat; Geometric concepts; Human health; Land surface; Metric combining; Spatiotemporal evolution; Surface temperatures; Warming climate; Climatology; frequency analysis; heat wave; land surface; magnitude; spatiotemporal analysis; surface temperature; trend analysis; warming; United States
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170427
作者单位	Geography Department, University of Alabama, Tuscaloosa, AL, United States; Center for Complex Hydrosystems Research, Department of Civil, Construction and Environmental Engineering, University of Alabama, Tuscaloosa, AL, United States
推荐引用方式 GB/T 7714	Keellings D.,Moradkhani H.. Spatiotemporal Evolution of Heat Wave Severity and Coverage Across the United States[J],2020,47(9).
APA	Keellings D.,&Moradkhani H..(2020).Spatiotemporal Evolution of Heat Wave Severity and Coverage Across the United States.Geophysical Research Letters,47(9).
MLA	Keellings D.,et al."Spatiotemporal Evolution of Heat Wave Severity and Coverage Across the United States".Geophysical Research Letters 47.9(2020).