Rottnest Island Bathymetry Reference Surface at 0.5m Resolution

A bathymetry survey acquired for the Australian Hydrographic Office on 11 December 2022. The dataset provides separate grids in 0.5m and 2m resolution for two surveyed sites near Rottnest Island, WA, in MSL, LAT, and Ellipsoid vertical datums. The data was processed using Caris HIPS & SIPS and exported as 32-bit floating point GeoTIFF grids.

Use Cases

• Calibrating multibeam echosounders based on the high-resolution reference surface.
• Analyzing seabed topography based on the 0.5m and 2m resolution bathymetry grids.
• Comparing vertical datums (MSL, LAT, Ellipsoid) for hydrographic studies based on the provided separate grids.

Strengths

• Data was collected using a Kongsberg EM2040P multibeam echosounder for a national reference survey.
• Provides high-resolution grids at both 0.5m and 2m resolutions.
• Includes data in three vertical datums: MSL, LAT, and Ellipsoid.

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.

Provenance

Source

Australian Hydrographic Office, via the Australian Ocean Data Network.

Collection Method

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

Time Range

Survey acquired on 11 December 2022.

Freshness

Last updated 2026-04-10 22:09:56.381661; freshness should be verified.

Geography

Adjacent to Rottnest Island, Western Australia.