AUSTREA: Seafloor Mapping of the Southern Macquarie Ridge

Geoscience Australia and the National Oceans Office collaborated on the AUSTREA marine survey to map the seafloor character over the southern Macquarie Ridge. The dataset includes multibeam swath bathymetry and reflectivity, along with high-resolution seismic data. It was last updated on 2026-06-05 via the Australian Ocean Data Network.

Use Cases

• Modeling seafloor morphology based on multibeam swath bathymetry data.
• Analyzing sedimentation patterns influenced by ocean-bottom currents.
• Interpreting plate tectonic processes from high-resolution seismic data.
• Mapping seabed character for regional marine planning.

Strengths

• Data was collected by the national geological survey (Geoscience Australia) and a government marine agency.
• Includes multiple complementary data types: multibeam bathymetry, reflectivity, and seismic data.
• Focuses on a specific, complex geological feature (the southern Macquarie Ridge).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and data size are unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Australian Ocean Data Network, from the AUSTREA survey by Geoscience Australia and the National Oceans Office.

Collection Method

Marine survey using multibeam swath bathymetry, reflectivity, and high-resolution seismic equipment.

Freshness

Last updated 2026-06-05 06:31:01.821629; freshness should be verified.

Geography

Southern Macquarie Ridge in the South Pacific Ocean.