AusBathyTopo: Northern Australia Bathymetry Model at 30m Resolution

Northern Australia's continental shelf, spanning approximately 1500 km, is modeled in this 30-meter resolution bathymetric dataset. Geoscience Australia compiled the data in 2018 from multibeam surveys, LiDAR, and satellite-derived sources. The model covers a broad shelf over 400 km wide, including coral reefs, sand cays, and slope canyons.

Use Cases

• Modeling safe shipping routes based on high-resolution seafloor depth data.
• Analyzing coral reef and seabed habitat structure based on the described complex seafloor features.
• Studying drowned ancient river valleys and continental shelf evolution based on the compiled bathymetry.
• Supporting coastal and intertidal zone management based on the integrated Intertidal Elevation Model.

Strengths

• 30-meter spatial resolution provides detailed seafloor topography.
• Integrates multiple data sources including multibeam surveys, airborne LiDAR, and satellite-derived bathymetry.
• Covers a vast region approximately 1500 km in length with a shelf over 400 km wide.
• Source data were extensively edited for noise and given consistent horizontal and vertical datums.

Limitations

• Row count and dataset size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Last updated 2026-04-20 02:20:37.694838; freshness should be verified.

Provenance

Source

Geoscience Australia Data

Collection Method

Compilation and editing of multibeam surveys, airborne LiDAR bathymetry, satellite-derived bathymetry, and an Intertidal Elevation Model.

Time Range

2018

Freshness

Last updated 2026-04-20 02:20:37.694838

Geography

Northern Australia's continental shelf and slope, including the Indian Ocean and Timor Sea.