AusBathyTopo: 30m Bathymetry and Topography Model for Torres Strait

A 30-meter resolution Digital Elevation Model (DEM) integrates depth and elevation data for the Torres Strait region. The dataset was compiled by Geoscience Australia from multiple sources, including multibeam surveys, LiDAR, and satellite data, and was last updated in 2026. It covers the area at the northern end of the Great Barrier Reef, bounded by Australia, Indonesia, and Papua New Guinea.

Use Cases

• Marine habitat mapping based on the high-resolution bathymetry and topography data.
• Simulating water mixing for hydrodynamic models based on the regional-scale depth model.
• Supporting safe navigation planning and environmental management based on the compiled depth data for the extensive reef and shoal system.
• Analyzing continental slope canyons and river delta deposits based on the integrated multibeam survey data.

Strengths

• 30-meter spatial resolution provides detailed topographic and bathymetric information.
• Integrates data from multiple sources, including multibeam surveys, airborne LiDAR, and satellite-derived bathymetry.
• Covers the Torres Strait region, a vital area at the northern end of the Great Barrier Reef.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset is not to be used for navigational purposes, limiting its application scope.
• Row count and file size are unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network, Geoscience Australia

Collection Method

Compilation and editing of point cloud data from multibeam surveys, LiDAR, and satellite sources.

Time Range

Data collection spans at least the past ten years, with a 2023 model version.

Freshness

Last updated 2026-04-28 13:03:02.112844; 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.