High-resolution multibeam bathymetry data maps seabed geomorphology for a ~25,500 km2 area of the northern Lord Howe Rise plateau in the Tasman Sea. The map, created by the Australian Ocean Data Network, uses a system of geomorphic units and elements to detail features like ridges, valleys, volcanic peaks, and polygonal furrows. The data was last updated on 2026-04-10.
Use Cases
- Analyzing the relationship between seabed geomorphology and underlying geological structures based on the described distribution of geomorphic units.
- Studying the formation and distribution of polygonal furrows attributed to dewatering processes in carbonate ooze.
- Mapping volcanic features and their clustering on acoustic basement highs as described for water depths of 1400-1600 meters.
- Investigating spatial variations in sedimentation rates in relation to bathymetric highs, as suggested for localized elements like moats and holes.
Strengths
- Covers a large, mapped area of approximately 25,500 square kilometers.
- Provides high-resolution mapping of geomorphic features not previously detailed on the Australian margin.
- Describes a specific sediment cover of stiff, unconsolidated carbonate ooze across the area.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count and file size are unknown, which may limit suitability assessment.
- The primary file format is HTML, which may not be the most convenient for direct geospatial analysis.
Provenance
- Source
- Australian Ocean Data Network via data_gov_au.
- Collection Method
- Mapping and interpretation based on high-resolution multibeam bathymetry.
- Time Range
- null
- Freshness
- Last updated 2026-04-10 18:18:02.395745; freshness should be verified.
- Geography
- Northern Lord Howe Rise plateau in the Tasman Sea, east Australian margin.