Data

Sediment Concentration Measurement in Port Jackson

Australian Ocean Data Network
Roberts, J.O. ; Jones, Ian, 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/5332af30-25d3-11dc-9247-00188b4c0af8&rft.title=Sediment Concentration Measurement in Port Jackson&rft.identifier=https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/5332af30-25d3-11dc-9247-00188b4c0af8&rft.description=Sydney Harbour is an important port and recreational region for the city of Sydney. Water turbidity is influenced by the urban and industrial wastes that drain from the watershed and the flushing of the estuary by clear oceanic water.In order to contrast the imaging of objects underwater by light or sound, it is necessary to understand the role played by the scatterers in the water that cause turbidity. Using five reference sites, the grain size, the number of grains per litre and the turbidity have been compared before and after rain. Three Sydney area estuaries have been observed to have similar turbidity increases with increasing distance from the sea.Maintenance and Update Frequency: notPlannedStatement: The Secchi disc is a standardised water visibility estimate taken by lowering a white disc of about 30 cm diameter into the sea and measuring the depth at which it becomes invisible.Statement: Although the use of the Secchi disc is not very accurate, it gives a reliable and quick estimate of the transparency of the water.&rft.creator=Roberts, J.O. &rft.creator=Jones, Ian, Professor &rft.date=2007&rft.coverage=westlimit=151.07; southlimit=-33.87; eastlimit=151.29; northlimit=-33.83&rft.coverage=westlimit=151.07; southlimit=-33.87; eastlimit=151.29; northlimit=-33.83&rft.coverage=uplimit=16; downlimit=3&rft.coverage=uplimit=16; downlimit=3&rft_subject=oceans&rft_subject=Oceans | Marine Sediments | Sediment Grain Size&rft_subject=ESTUARIES&rft_subject=EARTH SCIENCE&rft_subject=OCEANS&rft_subject=COASTAL PROCESSES&rft_subject=TURBIDITY&rft_subject=MARINE SEDIMENTS&rft_subject=turbidity&rft_subject=rainfall_amount&rft_subject=secchi_depth_of_sea_water&rft_subject=grainsize_size_category&rft.type=dataset&rft.language=English Access the data
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Full description

Sydney Harbour is an important port and recreational region for the city of Sydney. Water turbidity is influenced by the urban and industrial wastes that drain from the watershed and the flushing of the estuary by clear oceanic water.

In order to contrast the imaging of objects underwater by light or sound, it is necessary to understand the role played by the scatterers in the water that cause turbidity. Using five reference sites, the grain size, the number of grains per litre and the turbidity have been compared before and after rain. Three Sydney area estuaries have been observed to have similar turbidity increases with increasing distance from the sea.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: The Secchi disc is a standardised water visibility estimate taken by lowering a white disc of about 30 cm diameter into the sea and measuring the depth at which it becomes invisible.
Statement: Although the use of the Secchi disc is not very accurate, it gives a reliable and quick estimate of the transparency of the water.

Notes

Credit
University of Sydney
Purpose
A study of water clarity is reported here.

Issued: 29 06 2007

Data time period: 2001-11-13 to 2001-12-19

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151.29,-33.83 151.29,-33.87 151.07,-33.87 151.07,-33.83 151.29,-33.83

151.18,-33.85

text: westlimit=151.07; southlimit=-33.87; eastlimit=151.29; northlimit=-33.83

text: uplimit=16; downlimit=3

Subjects
COASTAL PROCESSES | EARTH SCIENCE | Estuaries | MARINE SEDIMENTS | OCEANS | Oceans | Marine Sediments | Sediment Grain Size | Turbidity | grainsize_size_category | oceans | rainfall_amount | secchi_depth_of_sea_water | turbidity |

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Other Information
(Link to Project report)

url : http://hdl.handle.net/2123/1863

Identifiers
  • global : 5332af30-25d3-11dc-9247-00188b4c0af8