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GEOMACS (Geological and Oceanographic Model of Australias Continental Shelf) Geometric mean

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. The geometric mean was calculated using the formula: Mg=(ti)1/n where n is the total number of model observations of the bed shear stress t . The geometric mean was used alongside the trimmed mean to provide a more robust representation of the bulk of the values than the arithmetic mean would have provided (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) Geometric mean
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/559e2224-15bc-4d78-8a47-ea2ce4f589c2
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) Geometric mean". 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-geometric-mean1