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GEOMACS (Geological and Oceanographic Model of Australias Continental Shelf) Q75

Created 25/06/2025

Updated 25/06/2025

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Geoscience Australias GEOMACS model was utilised to produce hindcast hourly time series of continental shelf (~20 to 300 m depth) bed shear stress (unit of measure: Pascal, Pa) on a 0.1 degree grid covering the period March 1997 to February 2008 (inclusive). The hindcast data represents the combined contribution to the bed shear stress by waves, tides, wind and density-driven circulation. Included in the parameters that represent the magnitude of the bulk of the data are the quartiles of the distribution; Q25, Q50 and Q75 (i.e. the values for which 25, 50 and 75 percent of the observations fall below). Q75, or the 0.75 Quartile of the Geomacs output, represents the values for which 75% of the observations fall below (Hughes and Harris 2008). This dataset is a contribution to the CERF Marine Biodiversity Hub and is hosted temporarily by CMAR on behalf of Geoscience Australia.

Files and APIs

Additional Info

Field Value
Title GEOMACS (Geological and Oceanographic Model of Australias Continental Shelf) Q75
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/981317df-f973-4361-a5b3-8b38ccaeaff4
Contact Point
CSIRO Marlin Data Catalogue
marine@ga.gov.au
Reference Period 24/07/2008
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        110.0,
        -44.0
      ],
      [
        156.0,
        -44.0
      ],
      [
        156.0,
        -7.0
      ],
      [
        110.0,
        -7.0
      ],
      [
        110.0,
        -44.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal CSIRO Marlin

Data Source

This dataset was originally found on CSIRO Marlin "GEOMACS (Geological and Oceanographic Model of Australias Continental Shelf) Q75". Please visit the source to access the original metadata of the dataset:
https://marlin.csiro.au/geonetwork/srv/eng/csw/dataset/geomacs-geological-and-oceanographic-model-of-australias-continental-shelf-q751