AHO Reference Surfaces: Bathymetry Survey for Echosounder Calibration in Broome, WA

A high-resolution bathymetry surface grid created from a contracted national reference survey between Gantheaume Point and Talboys Rock, Broome, Western Australia. The survey was acquired for the Australian Hydrographic Office (AHO) on 25-26 September 2020 using a Kongsberg EM 2040D multibeam echosounder. The processed data is provided as a 0.5-meter resolution, 32-bit floating point GeoTIFF grid in MSL, LAT, and Ellipsoid vertical datums.

Use Cases

• Calibrating multibeam echosounder systems based on the reference survey data.
• Analyzing seafloor topography and bathymetry based on the 0.5-meter resolution grid.
• Modeling coastal and marine environments based on the high-resolution geospatial data.
• Validating other bathymetric surveys against a known reference surface.

Strengths

• Data was acquired using a Kongsberg EM 2040D multibeam echosounder, a specific high-precision instrument.
• Provides a 0.5-meter resolution grid, indicating high spatial detail.
• Includes data in three vertical datums (MSL, LAT, Ellipsoid), enhancing versatility.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Row count and column-level documentation are absent; field semantics must be inferred after download.

Provenance

Source

Australian Hydrographic Office (AHO) via the Australian Ocean Data Network.

Collection Method

Acquired via the Hydroscheme Industry Partnership Program and processed using Caris HIPS & SIPS software.

Time Range

25 Sep 2020 - 26 Sep 2020

Freshness

Last updated 2026-04-10 19:01:18.161316; freshness should be verified.

Geography

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