High-Resolution Bathymetry Grids for Lord Howe Island

Detailed seabed bathymetric data grids for the Lord Howe Island region are presented, integrating bathymetry with island topography. The dataset includes four new grids created from a compilation of multibeam, singlebeam, satellite-derived, and chart-derived data. The work was produced by the Australian Ocean Data Network, with the record last updated in April 2026.

Use Cases

• Identify relict reef structures and seabed habitats using detailed bathymetry grids.
• Model tsunami wave interaction with the island shelf and coast using integrated bathymetry-topography data.
• Analyze physical seabed processes by examining gridded morphology models derived from multibeam and satellite data.
• Measure the relationship between physical seabed properties and biodiversity patterns on the carbonate shelf using bathymetric surrogates.

Strengths

• Includes four distinct bathymetry grids integrating multiple data sources.
• Covers a detailed region surrounding Lord Howe Island, approximately 450km off the NSW coast.
• Integrates bathymetry with island topography for coastal interface analysis.

Limitations

• Specific row counts, column details, and data volume are unknown.
• The primary documentation is in report format (HTML, PDF), requiring extraction for direct geospatial use.

Provenance

Source

Australian Ocean Data Network

Collection Method

Compilation and gridding of multibeam, singlebeam, satellite-derived, and chart-derived bathymetry data.

Freshness

Record last updated in April 2026.

Geography

Lord Howe Island region and surrounding shelf (20-120m depth).