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Incorporating estuaries as a source or sink of sediment within assessments of coastline risk and adaptation to climate change

Conference Paper


Download full-text (Open Access)

Abstract


  • Complex coastal landforms exhibit variable behaviour in response to sea-level rise. A

    proposed modelling framework that integrates shoreline changes associated with longterm

    recession, short-term variability and sea-level rise advocates that coastal risk

    assessment be undertaken within the context of a geomorphologically-based modelling

    framework whereby a coastline is subdivided into coastal compartments or cells,

    thereby recognising the sedimentary links between compartments. For example, the

    Narrabeen coastline includes bounding headland compartments, a bay compartment

    and an estuary compartment; and the behaviour of the coastline varies according to the

    response of each of these compartments to variable climatic and oceanic conditions.

    This approach is extended to other estuarine systems in southern NSW. Estuaries play

    an important role as a source or sink of sediment that varies widely in accordance with

    climatic and oceanic conditions. Accounting for the role of estuaries in coastline

    behaviour involves identifying the variable shorelines within estuaries; establishing the

    long-term estuarine shoreline behaviour and the response of shorelines to sea-level

    change; and integrating models that best represent the response of estuarine

    shorelines to climate change within the proposed integrated modelling framework for

    coastal risk assessment. Recognising the links between sedimentary sources and

    sinks and integrating models of estuarine behaviour with models of open coast

    behaviour will improve coastal risk assessment and provide greater confidence in

    adaptation options.

Publication Date


  • 2012

Citation


  • Rogers, K. & Woodroffe, C. D. (2012). Incorporating estuaries as a source or sink of sediment within assessments of coastline risk and adaptation to climate change. 21st NSW Coastal Conference Papers (pp. 1-16). Austarlia: ACS.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1578&context=smhpapers

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/565

Start Page


  • 1

End Page


  • 16

Place Of Publication


  • Austarlia

Abstract


  • Complex coastal landforms exhibit variable behaviour in response to sea-level rise. A

    proposed modelling framework that integrates shoreline changes associated with longterm

    recession, short-term variability and sea-level rise advocates that coastal risk

    assessment be undertaken within the context of a geomorphologically-based modelling

    framework whereby a coastline is subdivided into coastal compartments or cells,

    thereby recognising the sedimentary links between compartments. For example, the

    Narrabeen coastline includes bounding headland compartments, a bay compartment

    and an estuary compartment; and the behaviour of the coastline varies according to the

    response of each of these compartments to variable climatic and oceanic conditions.

    This approach is extended to other estuarine systems in southern NSW. Estuaries play

    an important role as a source or sink of sediment that varies widely in accordance with

    climatic and oceanic conditions. Accounting for the role of estuaries in coastline

    behaviour involves identifying the variable shorelines within estuaries; establishing the

    long-term estuarine shoreline behaviour and the response of shorelines to sea-level

    change; and integrating models that best represent the response of estuarine

    shorelines to climate change within the proposed integrated modelling framework for

    coastal risk assessment. Recognising the links between sedimentary sources and

    sinks and integrating models of estuarine behaviour with models of open coast

    behaviour will improve coastal risk assessment and provide greater confidence in

    adaptation options.

Publication Date


  • 2012

Citation


  • Rogers, K. & Woodroffe, C. D. (2012). Incorporating estuaries as a source or sink of sediment within assessments of coastline risk and adaptation to climate change. 21st NSW Coastal Conference Papers (pp. 1-16). Austarlia: ACS.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1578&context=smhpapers

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/565

Start Page


  • 1

End Page


  • 16

Place Of Publication


  • Austarlia