A rapid, economical, and accurate method to determining the physical risk of storm marine inundations using sedimentary evidence

Nott, Jonathan F. (2015) A rapid, economical, and accurate method to determining the physical risk of storm marine inundations using sedimentary evidence. Geophysical Research Letters, 42 (7). pp. 2426-2433.

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View at Publisher Website: http://dx.doi.org/10.1002/2015GL063288
 
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Abstract

The majority of physical risk assessments from storm surge inundations are derived from synthetic time series generated from short climate records, which can often result in inaccuracies and are time-consuming and expensive to develop. A new method is presented here for the wet tropics region of northeast Australia. It uses lidar-generated topographic cross sections of beach ridge plains, which have been demonstrated to be deposited by marine inundations generated by tropical cyclones. Extreme value theory statistics are applied to data derived from the cross sections to generate return period plots for a given location. The results suggest that previous methods to estimate return periods using synthetic data sets have underestimated the magnitude/frequency relationship by at least an order of magnitude. The new method promises to be a more rapid, economical, and accurate assessment of the physical risk of these events.

Item ID: 41869
Item Type: Article (Research - C1)
ISSN: 1944-8007
Keywords: tropical cyclones
Date Deposited: 08 Dec 2015 15:30
FoR Codes: 04 EARTH SCIENCES > 0406 Physical Geography and Environmental Geoscience > 040604 Natural Hazards @ 100%
SEO Codes: 96 ENVIRONMENT > 9610 Natural Hazards > 961002 Natural Hazards in Coastal and Estuarine Environments @ 100%
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