Brief description
The data set provides outlines for the maximum extent of geomorphic units for Australia's Exclusive Economic Zone, including the offshore island territories, but not the Australian Antarctic Territory. These data were compiled as part of Geoscience Australia's integrated digital information system to provide improved accessibility and knowledge relating to the environmental management of Australia's oceans resources. The geomorphic units are to be used as surrogates for benthic habitats and can be best applied to the construction of bioregionalisations of the seabed. The data set also includes the name of units in the attribute table, where known, the source(s) of the names, feature codes and province codes as well as the area and perimeter of each unit. The data are accompanied by Geoscience Australia Record 2003/30. Updated October 2006.Lineage
Maintenance and Update Frequency: asNeededwere also included to capture important geomorphic features on the shelf. Terms and nomenclature used to describe geomorphic features of the seabed
are based on definitions endorsed by the International Hydrographic Organisation (IHO, 2001). Further details of these terms and documentation underlying their adoption by IHO may be found at the following internet address: http://www.iho.shom.fr/publicat/free/files/B6efEd3.pdf for complete IHO documentation (IHO, 2001). Due to the often sparse nature of the bathymetric data and the coarse resolution of the maps some features in the geomorphic units map were identified through a literature search and not directly from the bathymetry grids. This was often the case for features such as sandwaves on the shelf, which occur on a scale to small to be resolved within the 250 m bathymetry grid.
Verification: Field verification was limited to reviewing published literature of prominent marine features within the Australian EEZ.
Created: 10 2006
text: westlimit=92; southlimit=-59.99999999999999; eastlimit=172; northlimit=-8.00; projection=WGS84 / EPSG:4326
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(Related product: Geomorphic Features of the Continental Margin of Australia)
uri :
https://ecat.ga.gov.au/geonetwork/srv/eng/search#!a05f7892-c0c4-7506-e044-00144fdd4fa6
(Related product: Geomorphology of the Australian Margin and Adjacent Seafloor)
uri :
http://www.ga.gov.au/metadata-gateway/metadata/record/69597
(Original metadata record [GA Catalogue])
uri :
http://pid.geoscience.gov.au/dataset/ga/69797
global : 4739e4b0-4dba-4ec5-b658-02c09f27ab9a
- URI : pid.geoscience.gov.au/dataset/ga/69797
- global : a05f7892-eeab-7506-e044-00144fdd4fa6