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August/September 2008 marine survey GA0308 collected multibeam echosounder data used to manually digitize reef polygons on the Carnarvon Shelf. Reefs were defined as exposed, hard substrate raised above the surrounding seafloor and mapped at a 1:10,000 scale using bathymetry, backscatter, and derivatives like slope and contours. This dataset provides a geospatial baseline for the reef structures in this Western Australian region.
Dataset is published with the permission of the CEO, Geoscience Australia, which may imply specific use permissions, though no explicit license is stated.