DOI: 10.5194/hess-21-2277-2017
Scopus记录号: 2-s2.0-85018986342
论文题名: A synthesis of space-time variability in multicomponent flood response
作者: Mei Y ; , Shen X ; , Anagnostou E ; N
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2017
卷: 21, 期: 5 起始页码: 2277
结束页码: 2299
语种: 英语
Scopus关键词: Catchments
; Floods
; Network function virtualization
; Rain
; Catchment response time
; Distributed hydrologic model
; Multiple components
; Rainfall and runoffs
; Rainfall-runoff events
; Runoff generation process
; Space-time variability
; Temporal correlations
; Runoff
; analytical framework
; catchment
; flood
; flood routing
; hydrological response
; rainfall-runoff modeling
; spatiotemporal analysis
; North Carolina
; Tar Basin
; United States
英文摘要: Catchment flood response consists of multiple components of flow originating from different surface and subsurface layers. This study proposes an extension of Viglione et al. (2010a) analytical framework to represent the dependence of catchment flood response to the different runoff generation processes. The analytical framework is compared to simulations from a distributed hydrologic model. A large number of rainfall-runoff events from three catchments of Tar River basin in North Carolina are used to illustrate the analytical framework. Specifically, the framework is used to estimate three flood event characteristics (cumulative runoff volume, centroid, and "spreadness" of hydrograph) through three corresponding framework parameters: the rainfall excess and the mean and variance of catchment response time. Results show that, under the smooth topographic setups of the study area, the spatial and/or temporal correlation between rainfall and runoff generation are insignificant to flood response; delay in flood response due to runoff generation and routing are of equal importance; the shape of the flood is mainly controlled by the variability in runoff generation stage but with non-negligible contribution from the runoff routing stage. Sensitivity tests show that the framework's main error source is the systematic underestimation of the flood event's centroid and spreadness, while the random error is relatively low. © Author(s) 2017. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79185
Appears in Collections: 气候变化事实与影响
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作者单位: Civil and Environmental Engineering, University of Connecticut, Storrs, CT, United States
Recommended Citation:
Mei Y,, Shen X,, Anagnostou E,et al. A synthesis of space-time variability in multicomponent flood response[J]. Hydrology and Earth System Sciences,2017-01-01,21(5)