Elizabeth and Middleton Reef Bathymetry Survey at 5m Resolution, 2020

Elizabeth and Middleton Reefs within the Lord Howe Marine Park were surveyed from 31 January to 6 February 2020. The dataset comprises two bathymetry grids derived from multibeam sonar data, gridded at 5 m spatial resolution and covering a combined area of 312 km². The survey was conducted by Geoscience Australia and partners to collect baseline information for benthic habitats.

Use Cases

• Modeling seafloor topography and habitat structure based on high-resolution bathymetry grids.
• Establishing environmental baselines for monitoring programs based on the survey's stated purpose.
• Integrating seabed mapping with complementary data layers like sediment samples and imagery mentioned in the description.

Strengths

• High-resolution 5-meter gridded bathymetry data.
• Covers a combined area of 312 km² including transit.
• Data collected via Kongsberg EM 2040C HD multibeam sonar and other instruments.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Geoscience Australia, funded by the National Environmental Science Program Marine Biodiversity Hub.

Collection Method

Seabed mapping using multibeam sonar, AUV imagery, sediment grabs, and baited remote underwater video.

Time Range

Survey conducted 31 January to 6 February 2020.

Freshness

Last updated 2026-06-04 07:21:47.635500; freshness should be verified

Geography

Elizabeth and Middleton Reefs, Lord Howe Marine Park, Australia.