Please use this identifier to cite or link to this item:
https://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. 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 |
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: | Aurora harvest 7 Civil and Environmental Engineering publications |
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