气候变化领域集成服务门户(CCPortal): To What Extent Are Changes in Flood Magnitude Related to Changes in Precipitation Extremes?

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DOI	10.1029/2020GL088684
	To What Extent Are Changes in Flood Magnitude Related to Changes in Precipitation Extremes?
	Do H.X.; Mei Y.; Gronewold A.D.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:18
英文摘要	Despite increasing evidence of intensification of extreme precipitation events associated with a warming climate, the magnitude of peak river flows is decreasing in many parts of the world. To better understand the range of relationships between precipitation extremes and floods, we analyzed annual precipitation extremes and flood events over the contiguous United States from 1980 to 2014. A low correlation (less than 0.2) between changes in precipitation extremes and changes in floods was found, attributable to a small fraction of co-occurrence. The covariation between precipitation extremes and floods is also substantially low, with a majority of catchments having a coefficient of determination of less than 0.5, even among the catchments with a relatively high fraction of annual maxima precipitation that can be linked to floods. The findings indicate a need for more investigations into causal mechanisms driving a nonlinear response of floods to intensified precipitation extremes in a warming climate. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Catchments; Precipitation (meteorology); Runoff; A-coefficient; Annual precipitation; Extreme precipitation events; Flood magnitudes; Low correlation; Non-linear response; Precipitation extremes; Warming climate; Floods; catchment; extreme event; flood; global warming; magnitude; peak flow; precipitation intensity; river flow; 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/169685
作者单位	School for Environment and Sustainability, University of Michigan, Ann Arbor, MI, United States; Faculty of Environment and Natural Resources, Nong Lam University, Ho Chi Minh City, Viet Nam
推荐引用方式 GB/T 7714	Do H.X.,Mei Y.,Gronewold A.D.. To What Extent Are Changes in Flood Magnitude Related to Changes in Precipitation Extremes?[J],2020,47(18).
APA	Do H.X.,Mei Y.,&Gronewold A.D..(2020).To What Extent Are Changes in Flood Magnitude Related to Changes in Precipitation Extremes?.Geophysical Research Letters,47(18).
MLA	Do H.X.,et al."To What Extent Are Changes in Flood Magnitude Related to Changes in Precipitation Extremes?".Geophysical Research Letters 47.18(2020).