Data

Morphodynamics of Deeban Spit, Port Hacking.

Australian Ocean Data Network
Rae, Elspeth ; Cowell, Peter, Dr ; Short, Andrew, Professor
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/fce3fbe0-6662-11dc-a301-00188b4c0af8&rft.title=Morphodynamics of Deeban Spit, Port Hacking.&rft.identifier=https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/fce3fbe0-6662-11dc-a301-00188b4c0af8&rft.description=Deeban Spit is in the estuary of the Port Hacking River. The data collected will be used to study the dynamics of Deeban Spit across three time scales: geological through a review of literature, engineering through GIS spatial analysis of changes in spit volume, and shoal and seagrass area through aerial photography. The aerial photographs were taken sporadically throughout the period from 1930 to 2006 and monthly throughout the four month period from March to July 2006 of the beach profile survey period. In the geological time scale, Deeban Spit has developed through sediment brought to the coast during the post glacial marine transgression (PMT), and the flooding of coastal valleys forming the estuary mouth. The sediment was then reworked into a flood tide delta, and waves, tides, and dredge spoil disposal caused the establishment of the spit itself. Decadally, the spit has oscillated according to shoal movement (which may be dredging and/or current induced) and major storm events, with a mean erosion trend of 117m3 /year. The storm events caused major changes in the beach profile, which varied between the locations along the spit. Similar profile adjustments were observed on a monthly scale, with a greater rate of erosion (mean rate of 18 650m3/year for the 4 month period) possibly due to the occurrence of a 6m storm wave event on 3/6/06) with the ability to cause most of this erosion in one event.Statement: The data collected will be used to study the dynamics of Deeban Spit across three time scales: geological through a review of literature, engineering through GIS spatial analysis of changes in spit volume, and shoal and seagrass area through aerial photography. The aerial photographs were taken sporadically throughout the period from 1930 to 2006 and monthly throughout the four month period from March to July 2006 of the beach profile survey period.&rft.creator=Rae, Elspeth &rft.creator=Cowell, Peter, Dr &rft.creator=Short, Andrew, Professor &rft.date=2007&rft.coverage=westlimit=151.133; southlimit=-34.078; eastlimit=151.133; northlimit=-34.078&rft.coverage=westlimit=151.133; southlimit=-34.078; eastlimit=151.133; northlimit=-34.078&rft_rights=As a student of the University of Sydney, Elspeth Rae owns the copyright, intellectual property and moral rights of the content within the thesis, unless stated otherwise. This includes the exclusive rights of publishing, making the thesis available online, performing the thesis in public, making adaptations of the thesis and broadcasting the thesis. Content within the thesis is protected by international copyright laws.&rft_subject=oceans&rft_subject=ESTUARIES&rft_subject=EARTH SCIENCE&rft_subject=OCEANS&rft_subject=COASTAL PROCESSES&rft_subject=COASTAL ELEVATION&rft.type=dataset&rft.language=English Access the data

Licence & Rights:

view details

As a student of the University of Sydney, Elspeth Rae owns the copyright, intellectual property and moral rights of the content within the thesis, unless stated otherwise. This includes the exclusive rights of publishing, making the thesis available online, performing the thesis in public, making adaptations of the thesis and broadcasting the thesis. Content within the thesis is protected by international copyright laws.

Access:

Other

Brief description

Deeban Spit is in the estuary of the Port Hacking River. The data collected will be used to study the dynamics of Deeban Spit across three time scales: geological through a review of literature, engineering through GIS spatial analysis of changes in spit volume, and shoal and seagrass area through aerial photography. The aerial photographs were taken sporadically throughout the period from 1930 to 2006 and monthly throughout the four month period from March to July 2006 of the beach profile survey period. In the geological time scale, Deeban Spit has developed through sediment brought to the coast during the post glacial marine transgression (PMT), and the flooding of coastal valleys forming the estuary mouth. The sediment was then reworked into a flood tide delta, and waves, tides, and dredge spoil disposal caused the establishment of the spit itself. Decadally, the spit has oscillated according to shoal movement (which may be dredging and/or current induced) and major storm events, with a mean erosion trend of 117m3 /year. The storm events caused major changes in the beach profile, which varied between the locations along the spit. Similar profile adjustments were observed on a monthly scale, with a greater rate of erosion (mean rate of 18 650m3/year for the 4 month period) possibly due to the occurrence of a 6m storm wave event on 3/6/06) with the ability to cause most of this erosion in one event.

Lineage

Statement: The data collected will be used to study the dynamics of Deeban Spit across three time scales: geological through a review of literature, engineering through GIS spatial analysis of changes in spit volume, and shoal and seagrass area through aerial photography. The aerial photographs were taken sporadically throughout the period from 1930 to 2006 and monthly throughout the four month period from March to July 2006 of the beach profile survey period.

Notes

Credit
The University of Sydney (USYD)
Purpose
To study the changes of the dynamics of Deeban Spit across three time scales: geological, engineering through GIS and seagrass area.

Issued: 19 09 2007

Data time period: 1930 to 2006

This dataset is part of a larger collection

Click to explore relationships graph

151.133,-34.078

151.133,-34.078

text: westlimit=151.133; southlimit=-34.078; eastlimit=151.133; northlimit=-34.078

Subjects

User Contributed Tags    

Login to tag this record with meaningful keywords to make it easier to discover

Identifiers
  • global : fce3fbe0-6662-11dc-a301-00188b4c0af8