AHO Reference Surfaces: Rottnest Island Bathymetry for Sensor Calibration

Rottnest Island, Western Australia, is the location for this high-resolution bathymetric reference surface. The dataset was created from a survey conducted on 11 December 2022 for the Australian Hydrographic Office using a Kongsberg EM2040P multibeam echosounder. It provides separate 0.5m and 2m resolution grids for two sites in three vertical datums (MSL, LAT, Ellipsoid), processed with Caris HIPS & SIPS.

Use Cases

• Calibrating multibeam echosounder systems based on the described high-precision reference surface.
• Validating bathymetric processing algorithms using the provided 0.5m and 2m resolution grids.
• Analyzing seafloor morphology near Rottnest Island based on the detailed bathymetric data.
• Comparing vertical datums (MSL, LAT, Ellipsoid) for hydrographic applications using the separate provided grids.

Strengths

• Provides very high-resolution 0.5m and 2m bathymetric grids.
• Survey conducted with a specific, named instrument (Kongsberg EM2040P) on a known date (11 December 2022).
• Data processed with industry-standard software (Caris HIPS & SIPS).
• Offers data in three vertical datums (MSL, LAT, Ellipsoid) for flexibility.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect geographic/temporal bias inherent to a single survey area and date.

Provenance

Source

Australian Hydrographic Office, Geoscience Australia Data

Collection Method

Contracted national reference survey using a Kongsberg EM2040P multibeam echosounder, processed with Caris HIPS & SIPS.

Time Range

Survey acquired 11 December 2022.

Freshness

Last updated 2026-04-30 14:54:56.800427; freshness should be verified.

Geography

Adjacent to Rottnest Island, Western Australia, Australia.