Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/90839
Type: Conference paper
Title: Flood risk estimation in Australia’s coastal zone: modelling the dependence between extreme rainfall and storm surge
Author: Zheng, F.
Westra, S.P.
Sisson, S.
Leonard, M.
Citation: Proceedings of the 35th Hydrology and Water Resources Symposium 2014, 2014 / pp.390-396
Publisher: Engineers Australia
Issue Date: 2014
ISBN: 9781922107190
Conference Name: 35th Hydrology and Water Resources Symposium (20 Feb 2014 - 27 Feb 2014 : Perth, Australia)
Statement of
Responsibility: 
Feifei Zheng, Seth Westra, Scott Sisson, Michael Leonard
Abstract: This paper provides a proposed methodology for estimating flood risk in situations where the potential exists for floods to be caused by the combination of catchment-derived flows from an extreme rainfall event together with elevated ocean water levels. The statistical basis of the methodology has been developed over a period of three years of research as part of Project 18 of the Australian Rainfall and Runoff revision. The methodology has the following elements: (1) assessment of whether a joint probability analysis is required, based on a pre-screening analysis; (2) estimation of the strength of dependence between extreme rainfall and storm surge, which will be based on the location of the catchment and the storm burst duration; (3) estimation of a set of flood levels corresponding to different combinations of rainfall and storm surge; and (4) estimation of the design flood levels based on the dependence parameter and the set of flood levels. This paper describes the overall methodology, provides an Australia-wide map of dependence parameters corresponding to different storm burst durations, and illustrates the methodology using a case study.
Rights: © Engineers Australia 2014
RMID: 0030025224
Grant ID: http://purl.org/au-research/grants/arc/CE1101028
Published version: http://search.informit.com.au/documentSummary;dn=391674872453229;res=IELENG
Appears in Collections:Civil and Environmental Engineering publications

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