From Geoscience Australia
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Backscatter grids of Carnarvon Shelf

Created 17/10/2025

Updated 17/10/2025

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Geoscience Australia carried out a marine survey on Carnarvon shelf (WA) in 2008 (SOL4769) to map seabed bathymetry and characterise benthic environments through colocated sampling of surface sediments and infauna, observation of benthic habitats using underwater towed video and stills photography, and measurement of ocean tides and wavegenerated currents. Data and samples were acquired using the Australian Institute of Marine Science (AIMS) Research Vessel Solander. Bathymetric mapping, sampling and video transects were completed in three survey areas that extended seaward from Ningaloo Reef to the shelf edge, including: Mandu Creek (80 sq km); Point Cloates (281 sq km), and; Gnaraloo (321 sq km). Additional bathymetric mapping (but no sampling or video) was completed between Mandu creek and Point Cloates, covering 277 sq km and north of Mandu Creek, covering 79 sq km. Two oceanographic moorings were deployed in the Point Cloates survey area. The survey also mapped and sampled an area to the northeast of the Muiron Islands covering 52 sq km.. The dataset contains 5 backscatter grids of the Carnarvon Shelf area produced from the processed EM3002 backscatter data of the survey area using the CMST-GA MB Process. Please see the metadata for more information.

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Additional Info

Field Value
Title Backscatter grids of Carnarvon Shelf
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/49e8bc78-eb1a-40c9-92c6-bf97dd11a677
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        113.18,
        -23.9
      ],
      [
        114.36,
        -23.9
      ],
      [
        114.36,
        -21.56
      ],
      [
        113.18,
        -21.56
      ],
      [
        113.18,
        -23.9
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Backscatter grids of Carnarvon Shelf". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/backscatter-grids-of-carnarvon-shelf1