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Shoalhaven river mouth: a retrospective analysis of breaching using aerial photography, landsatimagery and LiDAR

Conference Paper


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Abstract


  • The Shoalhavenriver, located on the wave-dominated south coast of eastern Australia, has the

    6th biggest catchment area (7,151 km2)that debouches in NSW waters. Although the river mouth

    is breached during floods, most of the time the normal flow is diverted through an artificially

    dug canal and only reaches the ocean at Crookhaven Heads. A search throughout LandSat

    archives and aerial photographs from 1949 has shown not only that the river mouth was opened

    in 1961, 1974-1980,1988-1994 and at the end of 1999, but also revealed that dune vegetation

    has been developing as increasingsand closes the river mouth. Nowadays, the river outlet is

    sealed by a 200-m wide sand deposit that ranges in elevation from 2.1 to 5.4 m above mean sea

    level.Historical comparison of LiDAR data also demonstrated the widening of Berry’s canal as

    erosion takes place on its flanks. These findings provide usefulevidence for a sediment budget

    approach to coastal management to be developed in this coastal compartment.

Publication Date


  • 2013

Citation


  • Carvalho, R. C. & Woodroffe, C. D. (2013). Shoalhaven river mouth: a retrospective analysis of breaching using aerial photography, landsatimagery and LiDAR. Proceedings of the 34th Asian Conference on Remote Sensing 2013 (pp. SC03-592-1-SC03-592-7). Indonesia: Indonesian Remote Sensing Society.

Scopus Eid


  • 2-s2.0-84903443448

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3322&context=smhpapers

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/2304

Start Page


  • SC03-592-1

End Page


  • SC03-592-7

Place Of Publication


  • Indonesia

Abstract


  • The Shoalhavenriver, located on the wave-dominated south coast of eastern Australia, has the

    6th biggest catchment area (7,151 km2)that debouches in NSW waters. Although the river mouth

    is breached during floods, most of the time the normal flow is diverted through an artificially

    dug canal and only reaches the ocean at Crookhaven Heads. A search throughout LandSat

    archives and aerial photographs from 1949 has shown not only that the river mouth was opened

    in 1961, 1974-1980,1988-1994 and at the end of 1999, but also revealed that dune vegetation

    has been developing as increasingsand closes the river mouth. Nowadays, the river outlet is

    sealed by a 200-m wide sand deposit that ranges in elevation from 2.1 to 5.4 m above mean sea

    level.Historical comparison of LiDAR data also demonstrated the widening of Berry’s canal as

    erosion takes place on its flanks. These findings provide usefulevidence for a sediment budget

    approach to coastal management to be developed in this coastal compartment.

Publication Date


  • 2013

Citation


  • Carvalho, R. C. & Woodroffe, C. D. (2013). Shoalhaven river mouth: a retrospective analysis of breaching using aerial photography, landsatimagery and LiDAR. Proceedings of the 34th Asian Conference on Remote Sensing 2013 (pp. SC03-592-1-SC03-592-7). Indonesia: Indonesian Remote Sensing Society.

Scopus Eid


  • 2-s2.0-84903443448

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3322&context=smhpapers

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/2304

Start Page


  • SC03-592-1

End Page


  • SC03-592-7

Place Of Publication


  • Indonesia