Broome Bathymetry Survey at 0.5-Meter Resolution

A high-resolution bathymetric surface covers the seafloor between Gantheaume Point and Talboys Rock near Broome, Western Australia. The Australian Hydrographic Office commissioned this survey from September 25 to 26, 2020, for calibrating multibeam echosounders. The processed data is provided as a 0.5-meter resolution GeoTIFF grid in multiple vertical datums.

Use Cases

• Calibrating multibeam echosounders using the 0.5m resolution reference surface.
• Analyzing seafloor morphology with the high-resolution MSL, LAT, and Ellipsoid vertical datum grids.
• Validating other bathymetric surveys against the reference data collected with a Kongsberg EM 2040D system.

Strengths

• High-resolution 0.5-meter grid for detailed seafloor analysis.
• Data collected using a specific multibeam system (Kongsberg EM 2040D) and processed with Caris HIPS & SIPS.

Limitations

• Limited temporal coverage from a two-day survey in September 2020.
• Spatial coverage is restricted to a specific corridor near Broome, WA.
• Dataset explicitly states it is not for navigational purposes, limiting its application.

Provenance

Source

Australian Hydrographic Office via the Hydroscheme Industry Partnership Program.

Collection Method

Acquired via a contracted national reference survey using a Kongsberg EM 2040D multibeam echosounder and processed with Caris HIPS & SIPS software.

Time Range

September 25-26, 2020.

Freshness

Dataset metadata was last updated in April 2026, though the survey data is from 2020.

Geography

Survey area between Gantheaume Point and Talboys Rock, Broome, Western Australia.