DOI: 10.5194/hess-22-417-2018
Scopus记录号: 2-s2.0-85040786062
论文题名: The role of storm scale, position and movement in controlling urban flood response
作者: Ten Veldhuis M ; -C ; , Zhou Z ; , Yang L ; , Liu S ; , Smith J
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2018
卷: 22, 期: 1 起始页码: 417
结束页码: 436
语种: 英语
Scopus关键词: Catchments
; Floods
; Land use
; Rain
; Runoff
; Correlation analysis
; Flow-path networks
; Hydrological response
; Impervious cover
; Observation based analysis
; Spatial and temporal variability
; Spatial rainfall variabilities
; Urban catchment
; Storms
; basin analysis
; catchment
; data set
; environmental impact assessment
; flood control
; hydrological response
; peak flow
; precipitation intensity
; river basin
; spatial distribution
; storm
英文摘要: The impact of spatial and temporal variability of rainfall on hydrological response remains poorly understood, in particular in urban catchments due to their strong variability in land use, a high degree of imperviousness and the presence of stormwater infrastructure. In this study, we analyze the effect of storm scale, position and movement in relation to basin scale and flow-path network structure on urban hydrological response. A catalog of 279 peak events was extracted from a high-quality observational dataset covering 15 years of flow observations and radar rainfall data for five (semi)urbanized basins ranging from 7.0 to 111.1km2 in size. Results showed that the largest peak flows in the event catalog were associated with storm core scales exceeding basin scale, for all except the largest basin. Spatial scale of flood-producing storm events in the smaller basins fell into two groups: Storms of large spatial scales exceeding basin size or small, concentrated events, with storm core much smaller than basin size. For the majority of events, spatial rainfall variability was strongly smoothed by the flow-path network, increasingly so for larger basin size. Correlation analysis showed that position of the storm in relation to the flow-path network was significantly correlated with peak flow in the smallest and in the two more urbanized basins. Analysis of storm movement relative to the flow-path network showed that direction of storm movement, upstream or downstream relative to the flow-path network, had little influence on hydrological response. Slow-moving storms tend to be associated with higher peak flows and longer lag times. Unexpectedly, position of the storm relative to impervious cover within the basins had little effect on flow peaks. These findings show the importance of observation-based analysis in validating and improving our understanding of interactions between the spatial distribution of rainfall and catchment variability. © Author(s) 2018. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79421
Appears in Collections: 气候变化事实与影响
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作者单位: Delft University of Technology, Watermanagement Department, Delft, Netherlands; Princeton University, Hydrometeorology Group, Princeton, NJ, United States; Tongji University, School of Ocean and Earth Science, Shanghai, China; UNEP-Tongji Institute of Environment for Sustainable Development Shanghai, Shanghai, China
Recommended Citation:
Ten Veldhuis M,-C,, Zhou Z,et al. The role of storm scale, position and movement in controlling urban flood response[J]. Hydrology and Earth System Sciences,2018-01-01,22(1)