AHO Reference Surfaces: Bathymetry Survey for Multibeam Calibration in Broome

A 0.5-meter resolution bathymetry survey grid collected for the Australian Hydrographic Office over two days in September 2020. The surface was created from a contracted national reference survey between Gantheaume Point and Talboys Rock, Broome WA, for calibrating multibeam echosounders. Data was processed using Caris HIPS & SIPS and exported as a 32-bit floating point GeoTIFF.

Use Cases

• Calibrating multibeam echosounder systems based on the high-resolution reference surface.
• Analyzing seabed topography for hydrographic charting based on the bathymetry grid.
• Validating sonar data accuracy against a known reference dataset based on the survey's purpose.
• Studying coastal geomorphology near Broome based on the detailed elevation data.

Strengths

• High-resolution 0.5-meter grid provides detailed bathymetric data.
• Survey conducted with a Kongsberg EM 2040D multibeam system, suggesting precise acquisition.
• Data provided in three vertical datums (MSL, LAT, Ellipsoid) for flexibility.

Limitations

• Metadata completeness is limited; actual data quality requires manual inspection after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Data is not to be used for navigational purposes, restricting its primary application.

Provenance

Source

Australian Hydrographic Office via the Hydroscheme Industry Partnership Program.

Collection Method

Acquired using Kongsberg EM 2040D multibeam echosounder and processed using Caris HIPS & SIPS.

Time Range

25 Sep 2020 - 26 Sep 2020

Freshness

Last updated 2026-05-05 00:08:49.670747; freshness should be verified.

Geography

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