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WAMSI 2 - Dredging Node 3.2.2 - Plume Characterization – Lab Studies

Created 23/06/2025

Updated 23/06/2025

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The key objectives of Project 3.2: (1) Characterize the physical/optical properties of sediment suspensions; (2) Map the dredge-generated plume; (3) Provide data to optimize and validate plume modelling; (5) Assess the spatial and temporal variability (~10 years) of background suspended sediment loads using archived remote sensing data; (6) To estimate the benthic light field with respect to TSS; In this study we investigated various common turbidity sensors, including optical scattering and acoustic scattering instrumentation, and compared and contrasted their effectiveness in estimating particle load (TSS concentration), and/or Particle Size Distributions (PSDs). Studies were conducted in a controlled laboratory-based setting with a range of different sediment types primarily obtained from the Pilbara coast. More specifically we: • determined the particle size (PS) of sediment samples from Pilbara coastal waters using a sequoia scientific LISST 100X submersible particle size analyser and related PS to the particulate backscattering slope (γbp parameter) of HobiLabs HydroScat-6 and the particulate scattering slope (γb parameter) of WETLabs acs-176; • Established the relationship between Turb and TSS concentration using the optical properties of particulate backscattering coefficient (bbp), scattering coefficient (bb) and total absorptions (a) from HydroScat-6 and acs-176; Wetlabs ECO NTU and Campbell Scientific OBS3+.

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Additional Info

Field Value
Title WAMSI 2 - Dredging Node 3.2.2 - Plume Characterization – Lab Studies
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/0a321258-fe8b-4a6e-9876-afd1cf7543a4
Contact Point
Australian Ocean Data Network
peter.fearns@gmail.com
Reference Period 18/10/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        115.40264,
        -21.34139
      ],
      [
        114.68616,
        -21.34139
      ],
      [
        114.68616,
        -21.61868
      ],
      [
        115.40264,
        -21.61868
      ],
      [
        115.40264,
        -21.34139
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "WAMSI 2 - Dredging Node 3.2.2 - Plume Characterization – Lab Studies". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/wamsi-2-dredging-node-3-2-2-plume-characterization-lab-studies