Torres Strait Bathymetry and Topography 30m Digital Elevation Model

AusBathyTopo (Torres Strait) 30m 2023 is a regional-scale depth and elevation model compiled from multiple sources by the Australian Ocean Data Network. The dataset integrates multibeam surveys, LiDAR bathymetry, satellite-derived bathymetry, and the National Intertidal Digital Elevation Model (NIDEM) to create a 30-meter resolution grid. It covers the Torres Strait area bounded by Australia, Indonesia, and Papua New Guinea.

Use Cases

• Marine habitat mapping based on the 30-meter resolution depth and elevation grid
• Simulating water mixing for hydrodynamic models based on the whole-of-Great Barrier Reef scale dataset
• Analyzing continental slope canyons based on deep-water multibeam survey data
• Mapping Fly River delta deposits based on shallow-water multibeam survey data
• Studying intertidal zones based on the integrated National Intertidal Digital Elevation Model (NIDEM)

Strengths

• Integrates data from 13 voyages of the CSIRO Marine National Facility
• Combines multiple high-resolution sources including multibeam surveys, airborne LiDAR, and satellite-derived bathymetry
• Provides a consistent 30-meter resolution grid covering the Torres Strait and northern Great Barrier Reef

Limitations

• Dataset is not to be used for navigational purposes, as explicitly stated
• Column-level documentation is absent; field semantics must be inferred after download
• Row count and file size are unknown, which may limit suitability assessment

Provenance

Source

Australian Ocean Data Network

Collection Method

Compiled from edited point clouds of multibeam surveys, LiDAR bathymetry, satellite-derived bathymetry, and NIDEM, given consistent WGS84 and MSL datums.

Freshness

Last updated 2026-04-16 14:02:08.611657

Geography

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