High-Resolution Geomorphic Map of Submerged Plateau, Northern Lord Howe Rise

High-resolution multibeam bathymetry maps seabed geomorphology across approximately 25,500 km² of the northern Lord Howe Rise plateau in the Tasman Sea. The map, produced by Geoscience Australia Data, identifies geomorphic units including ridges, valleys, plateaus, volcanic peaks, and an extensive network of polygonal furrows. The data was last updated on 2026-04-30.

Use Cases

• Analyzing seabed geomorphic units and elements based on the described hierarchy of ridges, valleys, and plateaus.
• Studying the formation and distribution of polygonal furrows attributed to dewatering processes in carbonate ooze.
• Investigating the relationship between seabed morphology and underlying geological structures, such as acoustic basement highs.
• Mapping volcanic features like clustered peaks to understand local volcanic intrusions and their geomorphic expression.

Strengths

• Covers a large area of approximately 25,500 km².
• Provides high-resolution mapping of seabed features not previously detailed on the Australian margin.
• Based on a defined mapping system extending a previous geomorphic hierarchy.

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, focusing on a specific part of the Lord Howe Rise.

Provenance

Source

Geoscience Australia Data

Collection Method

High-resolution multibeam bathymetry mapping.

Freshness

Last updated 2026-04-30 14:58:35.103355; freshness should be verified.

Geography

Northern Lord Howe Rise plateau, Tasman Sea, east Australian margin.