Seafloor Bathymetry and Biodiversity of Elizabeth and Middleton Reefs, 2020

Geoscience Australia and the Marine Biodiversity Hub collected high-resolution multibeam bathymetry and seafloor imagery data for Elizabeth and Middleton Reefs in the Lord Howe Marine Park. The survey, conducted from 31 January to 6 February 2020, aimed to map seabed habitats and associated fauna using AUVs, sonar, and stereo-baited video. This work was supported by the Australian Government’s National Environmental Science Program and Parks Australia.

Use Cases

• Habitat mapping based on high-resolution multibeam bathymetry data.
• Biodiversity analysis based on seafloor imagery from Autonomous Underwater Vehicles.
• Geospatial modeling of reef structure based on sonar and sediment sample data.

Strengths

• Data was collected using a suite of national standard survey tools and best practice sampling procedures.
• High-resolution multibeam bathymetry was acquired with a Kongsberg EM 2040C HD, 300 kHz sonar.
• Survey involved multiple authoritative agencies including Geoscience Australia and IMOS.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au.

Provenance

Source

Geoscience Australia Data, Marine Biodiversity Hub

Collection Method

Data acquired via multibeam sonar, Autonomous Underwater Vehicles (AUV Sirius and AUV Nimbus), sediment samples, and stereo-baited remote underwater videos.

Time Range

31 January to 6 February 2020

Freshness

Last updated 2026-03-25 17:52:04.050950; freshness should be verified.

Geography

Elizabeth and Middleton Reefs, Lord Howe Marine Park, Australia