An insight into headland sand bypassing and wave climate variability from shoreface bathymetric change at Byron Bay, New South Wales, Australia

Goodwin, Ian; Freeman, R. F.; Blackmore, Karen

doi:10.1016/j.margeo.2013.05.005

Cited by 68 publications

(67 citation statements)

References 25 publications

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“…For example, Ten Mile Beach ( Figure 1B) Because many beaches along the northern NSW coast are connected via a northward-directed littoral sand transport system [40], temporary or persisting divergences in transport rates can also drive periodic beach erosion or ongoing shoreline recession. Periodic erosion may occur where wave climate variability supports only intermittent sediment bypassing of prominent headlands [41,54]. On the other hand, persistent and ongoing shoreline recession may result from a long-term sediment budget imbalance within a coastal sediment compartment.…”

Section: Exposure To Coastal Erosionmentioning

confidence: 99%

Second-Pass Assessment of Potential Exposure to Shoreline Change in New South Wales, Australia, Using a Sediment Compartments Framework

Kinsela

Morris

Linklater

et al. 2017

JMSE

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Abstract:The impacts of coastal erosion are expected to increase through the present century, and beyond, as accelerating global mean sea-level rise begins to enhance or dominate local shoreline dynamics. In many cases, beach (and shoreline) response to sea-level rise will not be limited to passive inundation, but may be amplified or moderated by sediment redistribution between the beach and the broader coastal sedimentary system. We describe a simple and scalable approach for estimating the potential for beach erosion and shoreline change on wave-dominated sandy beaches, using a coastal sediment compartments framework to parameterise the geomorphology and connectivity of sediment-sharing coastal systems. We apply the approach at regional and local scales in order to demonstrate the sensitivity of forecasts to the available data. The regional-scale application estimates potential present and future asset exposure to coastal erosion in New South Wales, Australia. The assessment suggests that shoreline recession due to sea-level rise could drive a steep increase in the number and distribution of asset exposure in the present century. The local-scale example demonstrates the potential sensitivity of erosion impacts to the distinctive coastal geomorphology of individual compartments. Our findings highlight that the benefits of applying a coastal sediment compartments framework increase with the coverage and detail of geomorphic data that is available to parameterise sediment-sharing systems and sediment budget principles. Such data is crucial to reducing uncertainty in forecasts by understanding the potential response of key sediment sources and sinks (e.g., the shoreface, estuaries) to sea-level rise in different settings.

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Section: Exposure To Coastal Erosionmentioning

confidence: 99%

Second-Pass Assessment of Potential Exposure to Shoreline Change in New South Wales, Australia, Using a Sediment Compartments Framework

Kinsela

Morris

Linklater

et al. 2017

JMSE

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“…Sediment connectivity via littoral and shoreface sand transport means that many NSW beaches cannot be considered isolated features that vary independently from surrounding beaches (Goodwin et al, 2013). Rather, most beaches are elements of larger sediment-sharing systems, and respond to the redistribution of sand within the system due to evolving forcing conditions, such as the energy climate or sea level (Cowell et al, 2003).…”

Section: Regional Settingmentioning

confidence: 99%

A Flexible Approach to Forecasting Coastline Change on Wave-Dominated Beaches

Kinsela¹,

Morris²,

Daley³

et al. 2016

Journal of Coastal Research

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“…However, four processes contribute to the problem. Three of these are: (1) a decadal-scale sand-supply deficit in the longshore sand-transport rate bypassing Cape Byron and which is associated with fluctuations in wave climate (Goodwin, Freeman and Blackmore 2013); (2) an increase in incident easterly storm-wave power; and (3) the interruption of natural sand transport alongshore by the Jonson Street carpark (Byron Bay Central Business District (CBD) -see Figure 1). …”

Section: The Byron Bay Backgroundmentioning

confidence: 99%

Management of the Coastal Zone in Byron Bay: The Neglect of Medium-term Considerations

Roche¹,

Goodwin²,

McAneney³

2013

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An insight into headland sand bypassing and wave climate variability from shoreface bathymetric change at Byron Bay, New South Wales, Australia

Cited by 68 publications

References 25 publications

Second-Pass Assessment of Potential Exposure to Shoreline Change in New South Wales, Australia, Using a Sediment Compartments Framework

Second-Pass Assessment of Potential Exposure to Shoreline Change in New South Wales, Australia, Using a Sediment Compartments Framework

A Flexible Approach to Forecasting Coastline Change on Wave-Dominated Beaches

Management of the Coastal Zone in Byron Bay: The Neglect of Medium-term Considerations

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