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Identifying sediment compartment dynamics on the Illawarra Coast

Conference Paper


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Abstract


  • This project aims to produce a framework for assessing compartment dynamics

    within two sediment compartments in the Illawarra region to assist in assessing

    coastal hazards. Sediment sources, pathways and sinks will be examined for the

    Wollongong and Illawarra Coast – South compartments, defined by Geoscience

    Australia and CoastAdapt. A compartment based approach allows for more

    holistic coastal planning and management which considers sediment transport at

    differing scales, and interconnectivity of beaches. This type of approach

    underpins national guidance on open coast risk assessment and has been

    incorporated within the NSW Coastal Reforms and the Draft Coastal

    Management Manual.

    The adjacent sectors of the Wollongong Coast and Illawarra Coast-South

    compartments extend for approximately 30 km from Bellambi Point to Bass Point.

    The rock platform of Red Point marks the shoreline division between these two

    contrasting compartments. The Wollongong Coast is an urbanized relatively little

    studied leaky compartment, whereas the Illawarra Coast-South is a well-defined

    and confined compartment whose main sedimentary characteristics are

    represented by the infilling of the Lake Illawarra barrier estuary and the erosionprone

    Warilla Beach.

    This detailed examination of sediment resources brings together the state-wide

    coastal seabed mapping program being undertaken by the NSW Office of

    Environment and Heritage (OEH), and coastal geomorphological investigations

    being undertaken along the southern NSW coast by the University of Wollongong

    (UOW). These initiatives involve collation of historical data, sediment sampling,

    and the use of recently available sophisticated remote sensing technologies,

    such as terrestrial airborne LiDAR, single and multibeam bathymetry, sidescan

    sonar imagery, and underwater video and still camera.

UOW Authors


  •   Carvalho, Rafael C.
  •   Kinsela, Michael (external author)
  •   Hanslow, David (Dave) (external author)
  •   Hamylton, Sarah
  •   Linklater, Michelle (external author)
  •   Ingleton, Timothy (external author)
  •   Morris, B (external author)
  •   Allen, K (external author)
  •   Woodroffe, Colin

Publication Date


  • 2017

Citation


  • Carvalho, R., Kinsela, M., Hanslow, D., Hamylton, S., Linklater, M., Ingleton, T., Morris, B., Allen, K. & Woodroffe, C. (2017). Identifying sediment compartment dynamics on the Illawarra Coast. 26th NSW Coastal Conference (pp. 1-13).

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=6406&context=smhpapers

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/5352

Start Page


  • 1

End Page


  • 13

Abstract


  • This project aims to produce a framework for assessing compartment dynamics

    within two sediment compartments in the Illawarra region to assist in assessing

    coastal hazards. Sediment sources, pathways and sinks will be examined for the

    Wollongong and Illawarra Coast – South compartments, defined by Geoscience

    Australia and CoastAdapt. A compartment based approach allows for more

    holistic coastal planning and management which considers sediment transport at

    differing scales, and interconnectivity of beaches. This type of approach

    underpins national guidance on open coast risk assessment and has been

    incorporated within the NSW Coastal Reforms and the Draft Coastal

    Management Manual.

    The adjacent sectors of the Wollongong Coast and Illawarra Coast-South

    compartments extend for approximately 30 km from Bellambi Point to Bass Point.

    The rock platform of Red Point marks the shoreline division between these two

    contrasting compartments. The Wollongong Coast is an urbanized relatively little

    studied leaky compartment, whereas the Illawarra Coast-South is a well-defined

    and confined compartment whose main sedimentary characteristics are

    represented by the infilling of the Lake Illawarra barrier estuary and the erosionprone

    Warilla Beach.

    This detailed examination of sediment resources brings together the state-wide

    coastal seabed mapping program being undertaken by the NSW Office of

    Environment and Heritage (OEH), and coastal geomorphological investigations

    being undertaken along the southern NSW coast by the University of Wollongong

    (UOW). These initiatives involve collation of historical data, sediment sampling,

    and the use of recently available sophisticated remote sensing technologies,

    such as terrestrial airborne LiDAR, single and multibeam bathymetry, sidescan

    sonar imagery, and underwater video and still camera.

UOW Authors


  •   Carvalho, Rafael C.
  •   Kinsela, Michael (external author)
  •   Hanslow, David (Dave) (external author)
  •   Hamylton, Sarah
  •   Linklater, Michelle (external author)
  •   Ingleton, Timothy (external author)
  •   Morris, B (external author)
  •   Allen, K (external author)
  •   Woodroffe, Colin

Publication Date


  • 2017

Citation


  • Carvalho, R., Kinsela, M., Hanslow, D., Hamylton, S., Linklater, M., Ingleton, T., Morris, B., Allen, K. & Woodroffe, C. (2017). Identifying sediment compartment dynamics on the Illawarra Coast. 26th NSW Coastal Conference (pp. 1-13).

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=6406&context=smhpapers

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/5352

Start Page


  • 1

End Page


  • 13