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The AUSTREA-1 and AUSTREA-2 seabed swath-mapping surveys were completed in early 2000 by the Australian Geological Survey Organisation. The surveys were commissioned by the National Oceans Office and Environment Australia to provide scientific information for implementing Australia's Ocean Policy. The data covers the South-east Marine Region, including Lord Howe Island, the South-east Australian Margin, Tasmania, the South Tasman Rise, and the Central Great Australian Bight.
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