AUSTREA: Seafloor Mapping of Australia's South-east Marine Region

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.

Use Cases

• Marine habitat modeling based on seabed geophysical survey data.
• Planning marine protected areas based on detailed seafloor maps.
• Geological research on the Australian continental margin based on swath-mapping surveys.

Strengths

• Commissioned by the National Oceans Office and Environment Australia for a specific policy purpose.
• Covers a large, defined geographic region including multiple distinct marine zones.
• Conducted by the authoritative Australian Geological Survey Organisation (AGSO).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is from surveys completed in early 2000; freshness should be verified for current applications.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Geoscience Australia Data

Collection Method

Seabed swath-mapping and geophysical surveys (AUSTREA-1 and AUSTREA-2).

Time Range

Surveys completed in early 2000.

Freshness

Last updated 2026-04-30 12:33:19.024103; data collection occurred in early 2000.

Geography

Australian South-east Marine Region, Lord Howe Island, South-east Australian Margin, Tasmania, South Tasman Rise, Central Great Australian Bight.