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Wave hazards on microtidal shore platforms : testing the relationship between morphology and exposure

Kennedy, David M., Ierodiaconou, Daniel, Weir, Adam and Brighton, Barbara 2016, Wave hazards on microtidal shore platforms : testing the relationship between morphology and exposure, Natural hazards, In Press, pp. 1-15, doi: 10.1007/s11069-016-2714-1.

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Title Wave hazards on microtidal shore platforms : testing the relationship between morphology and exposure
Author(s) Kennedy, David M.
Ierodiaconou, Daniel
Weir, Adam
Brighton, Barbara
Journal name Natural hazards
Season In Press
Start page 1
End page 15
Total pages 15
Publisher Springer
Place of publication Berlin, Germany
Publication date 2016
ISSN 0921-030X
1573-0840
Keyword(s) Shore platform
Hazard
Waves
Rock fishing
Water safety
Rock coast
Drowning
Summary Open-ocean rocky coasts are dangerous environments when there is a coincidence of recreational activities occurring in areas of high wave energy. Management of drowning fatalities and near-drowning incidents on these landforms is difficult as traditional approaches to beach safety cannot be easily transferred to rocky shores. In this study, we take a morphological approach to quantifying the relative danger of shore platforms in microtidal regions. Platform elevation and nearshore water depth are key variables in determining the likelihood of wave overtopping of the platform edge. The relationship between these variables is tested along a 70-km-long section of the Otway Ranges coast in Victoria, Australia. It is found that exposure is highly variable along short (100 m scale) sections of shore platforms. This variability is driven by the complexity of the nearshore morphology which can have metre-scale relief. As exposed platforms may occur in areas of low wave energy, the morphological exposure index is combined with nearshore wave energy to produce a risk rating. Risk, like exposure, was found to be highly spatially variable. The relationship between elevation and water depth has the potential to provide managers with a tool for assessing safety on rocky shores.
Language eng
DOI 10.1007/s11069-016-2714-1
Field of Research 040305 Marine Geoscience
040604 Natural Hazards
0401 Atmospheric Sciences
0406 Physical Geography And Environmental Geoscience
1701 Psychology
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Springer
Persistent URL http://hdl.handle.net/10536/DRO/DU:30090387

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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