From Australian Oceans Data Network
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Predicted seabed gravel, mud and sand content in the Timor Sea region in the Australian continental EEZ 2018

Created 23/06/2025

Updated 23/06/2025

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This dataset provides the spatially continuous data of seabed gravel (sediment fraction >2000 µm), mud (sediment fraction < 63 µm) and sand content (sediment fraction 63-2000 µm) expressed as a weight percentage ranging from 0 to 100%, presented in 10 m resolution raster grids format and ascii text file. The dataset covers the eight areas in the Timor Sea region in the Australian continental EEZ. This dataset supersedes previous predictions of sediment gravel, mud and sand content for the basin with demonstrated improvements in accuracy. Accuracy of predictions varies with sediment types, with a VEcv = 71% for mud, VEcv = 72% sand and VEcv = 42% for gravel. Artefacts occur in this dataset as a result of noises associated predictive variables (e.g., horizontal and vertical lines resulted from predictive variables derived from backscatter data are the most apparent ones). To obtain the most accurate interpretation of sediment distribution in these areas, it is recommended that noises with backscatter data should be reduced and predictions updated. This research is supported by the National Environmental Science Program (NESP) Marine Biodiversity Hub through Project D1.

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Additional Info

Field Value
Title Predicted seabed gravel, mud and sand content in the Timor Sea region in the Australian continental EEZ 2018
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/c5389410-73a6-4059-b394-9dab0bb25c88
Contact Point
Australian Ocean Data Network
clientservices@ga.gov.au
Reference Period 14/09/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        126.91,
        -12.42
      ],
      [
        130.08,
        -12.42
      ],
      [
        130.08,
        -10.28
      ],
      [
        126.91,
        -10.28
      ],
      [
        126.91,
        -12.42
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Predicted seabed gravel, mud and sand content in the Timor Sea region in the Australian continental EEZ 2018". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/predicted-seabed-gravel-mud-and-sand-content-in-the-timor-sea-region-in-the-australian-con-2018