WAVE OVERWASH ON A ROCK PLATFORM: REMOTE SENSING AND PRESSURE SENSOR OBSERVATIONS

Hannah E. Power, Michael A. Kinsela, Caio E. Stringari, Murray J. Kendall, David J. Hanslow

Abstract


Open ocean rocky shore platforms are typically exposed to high wave energy and are often the location of recreational activities from sightseeing and walking to fishing (Kennedy et al. 2017). The exposure of these environments, combined with the use for recreation, results in a high level of risk for those who use the rock platform. In Australia, for example, 19% of coastal fatalities occur on rock coasts, most commonly when individuals fall from microtidal semi-horizontal platforms into the ocean (SLSA, 2014a,b). Managing the hazards and resultant risk on rocky shore platforms requires a different approach to that taken for sandy beaches as the sites are typically remote. Here we explore the wave overwash hazards on a remote but high visitation rocky shore platform 40 km south of Sydney, Australia.

Full Text:

PDF

References


Kennedy, Ierodiaconou, Weir, Brighton (2017): Wave hazards on microtidal shore platforms: testing the relationship between morphology and exposure, Natural Hazards, vol. 86, pp. 741-755.

Kinsela, Power, Stringari, Kendall, Morris, Hanslow (2017): Wave process and overwash on a high-energy rock platform, Proc. Coastal Dynamics 2017, pp. 685-696

SLSA (2014a): Annual report 2013/14, Surf Life Saving Australia, Sydney.

SLSA (2014b): National Coastal Safety Report 2014, Surf Life Saving Australia, Sydney.




DOI: https://doi.org/10.9753/icce.v36.waves.29