Quantifying the morphodynamics of beaches to nearshore and offshore rocky reefs in southwestern Australia

Laura Elena Segura Mena

doi:10.4225/23/598926467c414

Quantifying the morphodynamics of beaches to nearshore and offshore rocky reefs in southwestern Australia

Laura Elena Segura Mena

School of Earth Sciences

Research output: Thesis › Doctoral Thesis

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Abstract

This thesis investigates the impact that offshore and nearshore reefs have on the short-term and long-term beach morphodynamics at southwestern Western Australia (SWWA). Our results show that offshore reefs reduce the influence of remotely-generated swell waves in driving beach morphodynamics, accentuating the effect of local storms and sea-breeze cycles in the shoreline variability.Near shore reefs can influence beach morphodynamcs by fostering alongshore sediment
transport that results in an alongshore-variable response. The seasonal and inter-annual variation in sub-tidal water level and the seasonal variation in swell energy strongly dictate the morphodynamics at beaches fronted by nearshore reefs in SWWA.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Hansen, Jeff, Supervisor Lowe, Ryan, Supervisor Symonds, Graham, Supervisor
Award date	20 Jul 2017
DOIs	https://doi.org/10.4225/23/598926467c414
Publication status	Unpublished - 2017

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10.4225/23/598926467c414

THESIS - DOCTOR OF PHILOSOPHY - SEGURA MENA Laura Elena - 2017
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Cite this

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title = "Quantifying the morphodynamics of beaches to nearshore and offshore rocky reefs in southwestern Australia",

abstract = "This thesis investigates the impact that offshore and nearshore reefs have on the short-term and long-term beach morphodynamics at southwestern Western Australia (SWWA). Our results show that offshore reefs reduce the influence of remotely-generated swell waves in driving beach morphodynamics, accentuating the effect of local storms and sea-breeze cycles in the shoreline variability.Near shore reefs can influence beach morphodynamcs by fostering alongshore sedimenttransport that results in an alongshore-variable response. The seasonal and inter-annual variation in sub-tidal water level and the seasonal variation in swell energy strongly dictate the morphodynamics at beaches fronted by nearshore reefs in SWWA.",

keywords = "Beach morphodynamics, Fringing reefs, coastal erosion, Nearshore processes",

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school = "The University of Western Australia",

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AU - Segura Mena, Laura Elena

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N2 - This thesis investigates the impact that offshore and nearshore reefs have on the short-term and long-term beach morphodynamics at southwestern Western Australia (SWWA). Our results show that offshore reefs reduce the influence of remotely-generated swell waves in driving beach morphodynamics, accentuating the effect of local storms and sea-breeze cycles in the shoreline variability.Near shore reefs can influence beach morphodynamcs by fostering alongshore sedimenttransport that results in an alongshore-variable response. The seasonal and inter-annual variation in sub-tidal water level and the seasonal variation in swell energy strongly dictate the morphodynamics at beaches fronted by nearshore reefs in SWWA.

AB - This thesis investigates the impact that offshore and nearshore reefs have on the short-term and long-term beach morphodynamics at southwestern Western Australia (SWWA). Our results show that offshore reefs reduce the influence of remotely-generated swell waves in driving beach morphodynamics, accentuating the effect of local storms and sea-breeze cycles in the shoreline variability.Near shore reefs can influence beach morphodynamcs by fostering alongshore sedimenttransport that results in an alongshore-variable response. The seasonal and inter-annual variation in sub-tidal water level and the seasonal variation in swell energy strongly dictate the morphodynamics at beaches fronted by nearshore reefs in SWWA.

KW - Beach morphodynamics

KW - Fringing reefs

KW - coastal erosion

KW - Nearshore processes

U2 - 10.4225/23/598926467c414

DO - 10.4225/23/598926467c414

M3 - Doctoral Thesis

ER -

Quantifying the morphodynamics of beaches to nearshore and offshore rocky reefs in southwestern Australia

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