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Resuspension and clearing of dredge spoils after dredging, Cleveland Bay, Townsville, north Queensland

Created 24/06/2017

Updated 09/10/2017

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Field studies of the effects of dredging the 8km long Townsville navigation channel (Platypus Channel) were carried out in May 1989. The suction dredge was followed by a research vessel and the spoil plume, which formed in the lee of the dredge, was marked using a near-bottom sail drogue. Vertical profiles of temperature, salinity and suspended sediment concentration (SSC) were obtained next to the drogue. Cross sections of the suspended sediment density stratification in the water column next to the drogue and along transects perpendicular to the track of the dredge during dredging, were recorded using an acoustic sounder.

In the laboratory, the settling characteristics of a composite sample of muddy silt from four areas of the harbour, that are dredged were investigated. Sediment was added to a column and subjected to turbulence. Floc sizes were measured and vertical profiles of SSC were obtained.

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Title Resuspension and clearing of dredge spoils after dredging, Cleveland Bay, Townsville, north Queensland
Language English
Licence Other
Landing Page https://devweb.dga.links.com.au/data/dataset/79995840-8fa7-4aff-953c-d0d60fe3613c
Contact Point
Australian Institute of Marine Science
adc@aims.gov.au
Geospatial Coverage {"type": "Polygon", "coordinates": [[[146.798098, -19.26588], [146.898328, -19.26588], [146.898328, -19.15273], [146.798098, -19.15273], [146.798098, -19.26588]]]}
Data Portal data.gov.au

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This dataset was originally found on data.gov.au "Resuspension and clearing of dredge spoils after dredging, Cleveland Bay, Townsville, north Queensland". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/resuspension-and-clearing-of-dredge-spoils-after-dredging-cleveland-bay-townsville-north-queens

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