Cape Darnley Bathymetry Grid at 100-Meter Resolution

A 100-meter resolution bathymetric grid of the Cape Darnley region in East Antarctica, compiled from single-beam, multibeam, and chart data. The compilation was published in Antarctic Science in 2021 and improves previous representations of the seafloor. It covers the Mac.Robertson Land shelf, slope, and adjacent deep sea.

Use Cases

• Numerical modelling of ocean circulation based on detailed seafloor topography.
• Reconstruction of palaeo-ice streams using high-resolution bathymetric data.
• Refinement of ice-sheet models with improved regional bathymetry.
• Visualization of seafloor morphology for geological and biological habitat studies.

Strengths

• 100-meter grid resolution provides detailed seafloor visualization.
• Compilation uses a layered hierarchy approach based on data source quality.
• Integrates multiple data types from numerous institutions over three decades of collection.

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 metadata update is listed as 2026-04-30.

Provenance

Source

Geoscience Australia Data

Collection Method

Compilation of single-beam, multibeam swath bathymetry, and digitized depths from nautical charts sourced from numerous institutions.

Freshness

Last updated 2026-04-30 13:42:47.247082; freshness should be verified.

Geography

Cape Darnley region, East Antarctica, including Mac.Robertson Land shelf, slope, and adjacent deep sea.