AusBathyTopo: 30-Meter Bathymetry and Topography Model for the Torres Strait Region
Updated 1mo ago
1filesZIP
Available on 1 platform
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Description
A 30-meter resolution Digital Elevation Model (DEM) integrates depth and elevation data for the Torres Strait, a vital area at the northern end of the Great Barrier Reef. The dataset was compiled by Geoscience Australia from multiple sources, including multibeam surveys, LiDAR, and satellite data, and was last updated in 2026. This regional-scale model underpins marine habitat mapping and hydrodynamic simulations for the entire Great Barrier Reef ecosystem.
Use Cases
Map marine habitats and reef structures based on the high-resolution bathymetry and topography data.
Simulate water mixing and currents for hydrodynamic models based on the detailed seafloor elevation.
Analyze the complex continental slope canyons and delta deposits described in the source surveys.
Support safe shipping navigation planning by providing a detailed model of the seafloor, though not for official navigational use.
Strengths
Integrates data from multiple high-quality sources, including multibeam surveys, airborne LiDAR, and satellite-derived bathymetry.
Provides a consistent 30-meter resolution grid covering the ecologically significant Torres Strait region.
Data were extensively edited and standardized to consistent WGS84 horizontal and approximate MSL vertical datums.
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
The dataset is explicitly not to be used for navigational purposes, limiting its application scope.
Row count and total file size are unknown, which may limit suitability assessment for large-scale processing.
Provenance
Source
Australian Ocean Data Network, compiled by Geoscience Australia.
Collection Method
Data compiled from multibeam surveys, airborne LiDAR bathymetry, satellite-derived bathymetry, and the National Intertidal Digital Elevation Model (NIDEM).
Time Range
Source data collected over at least the past ten years, with a 2023 model version.
Freshness
Last updated 2026-05-05 00:01:07.858875; 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.
The dataset is not to be used for navigational purposes. Available file format is ZIP.