AusBathyTopo (Torres Strait): 30m Resolution Depth and Elevation Model

A 30-meter resolution Digital Elevation Model (DEM) of depth and elevation data for the Torres Strait region, compiled from multiple sources. The dataset was created by Geoscience Australia and integrates data from multibeam surveys, airborne LiDAR bathymetry, satellite-derived bathymetry, and the National Intertidal Digital Elevation Model (NIDEM). It is intended to support marine habitat mapping and hydrodynamic modeling for the Great Barrier Reef region.

Use Cases

• Marine habitat mapping based on the integrated bathymetry and topography data.
• Simulating water mixing for hydrodynamic models based on the high-resolution seabed topography.
• Supporting safe navigation planning based on the detailed depth model of the reef and shoal system.
• Analyzing delta deposits and continental slope canyons based on the multibeam survey data mentioned in the description.

Strengths

• Integrates data from multiple sources, including multibeam surveys, LiDAR, and satellite-derived bathymetry.
• Provides a consistent 30-meter spatial resolution across the defined region.
• Data were edited as point clouds to remove noise and given consistent horizontal (WGS84) and vertical (MSL) datums.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset is explicitly not to be used for navigational purposes.

Provenance

Source

Geoscience Australia Data

Collection Method

Compiled and edited from multibeam surveys, airborne LiDAR bathymetry, satellite-derived bathymetry, and the NIDEM model.

Freshness

Last updated 2026-04-30 13:19:31.663457; freshness should be verified.

Geography

Torres Strait region, bounded by Australia, Indonesia, and Papua New Guinea, at the northern end of the Great Barrier Reef.