气候变化领域集成服务门户(CCPortal): Transformation of Generation Processes From Small Runoff Events to Large Floods

CCPortal

DOI	10.1029/2020GL090547
	Transformation of Generation Processes From Small Runoff Events to Large Floods
	Tarasova L.; Basso S.; Merz R.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:22
英文摘要	Mixture of runoff generation processes poses a challenge for predicting upper flood quantiles. We examined transformations of generation processes from all identifiable runoff events to frequent and upper tail floods for a large set of mesoscale catchments and observed a substantial change of the dominant processes. Two trajectories of transformation were detected. In regions where floods occur almost exclusively in winter the dominance of processes related to snowmelt consistently increases from small events to frequent and upper tail floods. In catchments characterized by frequent winter-spring floods and occasional summer-autumn flood events triggered by rare meteorological phenomena (e.g., Vb cyclones), processes that dominate upper tails are not adequately represented in the sample of frequent floods. Predictions of extremes and projections of flood changes might remain highly uncertain in the latter cases. ©2020. The Authors.
英文关键词	Catchments; Runoff; Storms; Dominant process; Flood event; Flood quantiles; Generation process; Mesoscale catchments; Meteorological phenomena; Runoff generation process; Spring floods; Floods; catchment; flood frequency; flooding; hydrometeorology; runoff; seasonality; snowmelt
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/169379
作者单位	Department Catchment Hydrology, Helmholtz Centre for Environmental Research-UFZ, Halle (Saale), Germany
推荐引用方式 GB/T 7714	Tarasova L.,Basso S.,Merz R.. Transformation of Generation Processes From Small Runoff Events to Large Floods[J],2020,47(22).
APA	Tarasova L.,Basso S.,&Merz R..(2020).Transformation of Generation Processes From Small Runoff Events to Large Floods.Geophysical Research Letters,47(22).
MLA	Tarasova L.,et al."Transformation of Generation Processes From Small Runoff Events to Large Floods".Geophysical Research Letters 47.22(2020).