High resolution multibeam bathymetry maps seabed geomorphology for a 25,500 km² area of the northern Lord Howe Rise plateau in the Tasman Sea. The Australian Ocean Data Network dataset reveals an extensive network of polygonal furrows, volcanic peaks, ridges, and valleys, extending a previous mapping hierarchy. The distribution of geomorphic units suggests strong controls from underlying geological structures.
Use Cases
- Analyze seabed geomorphic unit distribution based on the described mapping system of units and elements.
- Study the formation of polygonal furrows attributed to dewatering processes in carbonate ooze.
- Investigate the relationship between volcanic peaks, acoustic basement highs, and underlying geological structures.
- Map regional slope patterns based on broad plains and valleys sloping southwest following the regional dip.
- Compare localised geomorphic elements like moats and holes to spatial variations in sedimentation rates.
Strengths
- Mapped area covers approximately 25,500 square kilometers.
- High resolution multibeam bathymetry provides detailed seabed interpretation.
- Extends a previous hierarchy of geomorphic provinces and features used for the Australian margin.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Freshness should be verified as the last update date is 2026-04-16.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- High resolution multibeam bathymetry mapping.
- Freshness
- Last updated 2026-04-16 15:37:56.495589.
- Geography
- Northern Lord Howe Rise plateau, Tasman Sea, east Australian margin.