DOI: 10.1002/2017JC013472
Scopus记录号: 2-s2.0-85044844873
论文题名: Mapping Dependence Between Extreme Rainfall and Storm Surge
作者: Wu W. ; McInnes K. ; O'Grady J. ; Hoeke R. ; Leonard M. ; Westra S.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期: 4 起始页码: 2461
结束页码: 2474
语种: 英语
英文关键词: coastal flood risk
; compound flood
; extreme events
; extreme rainfall
; ROMS
; storm surge
Scopus关键词: bathymetry
; coastal zone
; extreme event
; flooding
; hydrodynamics
; mapping
; precision
; rainfall
; seasonal variation
; storm surge
; Australia
英文摘要: Dependence between extreme storm surge and rainfall can have significant implications for flood risk in coastal and estuarine regions. To supplement limited observational records, we use reanalysis surge data from a hydrodynamic model as the basis for dependence mapping, providing information at a resolution of approximately 30 km along the Australian coastline. We evaluated this approach by comparing the dependence estimates from modeled surge to that calculated using historical surge records from 79 tide gauges around Australia. The results show reasonable agreement between the two sets of dependence values, with the exception of lower seasonal variation in the modeled dependence values compared to the observed data, especially at locations where there are multiple processes driving extreme storm surge. This is due to the combined impact of local bathymetry as well as the resolution of the hydrodynamic model and its meteorological inputs. Meteorological drivers were also investigated for different combinations of extreme rainfall and surge—namely rain-only, surge-only, and coincident extremes—finding that different synoptic patterns are responsible for each combination. The ability to supplement observational records with high-resolution modeled surge data enables a much more precise quantification of dependence along the coastline, strengthening the physical basis for assessments of flood risk in coastal regions. © 2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114171
Appears in Collections: 气候减缓与适应
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作者单位: Department of Infrastructure, University of Melbourne, Melbourne, VIC, Australia; School of Civil, Environmental and Mining Engineering, University of Adelaide, Adelaide, SA, Australia; Commonwealth Scientific and Industrial Research Organisation, Marine and Atmospheric Research, Aspendale, VIC, Australia
Recommended Citation:
Wu W.,McInnes K.,O'Grady J.,et al. Mapping Dependence Between Extreme Rainfall and Storm Surge[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(4)