AHO Reference Surfaces: Bathymetry Survey of Torres Strait at 0.5m Resolution

A 2023 bathymetry surface created from a national reference survey acquired on 12 Dec 2021 for the Australian Hydrographic Office. The data consists of separate 0.5m resolution grids for two sites near Goods Island and Tuesday Island, provided in MSL, LAT, and Ellipsoid vertical datums. It was processed using QPS Qimera software from data collected via a Kongsberg EM2040D multibeam echosounder.

Use Cases

• Calibrating multibeam echosounder systems based on the high-resolution reference surfaces.
• Analyzing seafloor morphology in the Torres Strait based on the 0.5m resolution bathymetric grids.
• Comparing vertical datums (MSL, LAT, Ellipsoid) for specific survey areas mentioned in the description.

Strengths

• Provides high-resolution 0.5m bathymetric grids for two specific survey sites.
• Data is delivered in three standard vertical datums (MSL, LAT, Ellipsoid) for flexibility.
• Acquired using a specific, professional-grade sensor (Kongsberg EM2040D).

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Row count is unknown, which may limit suitability assessment.
• Explicitly not to be used for navigational purposes, restricting its primary application.

Provenance

Source

Australian Hydrographic Office (AHO), via Geoscience Australia Data.

Collection Method

Contracted survey data acquired using Kongsberg EM2040D and processed with QPS Qimera.

Time Range

Survey acquired on 12 Dec 2021; dataset published in 2023.

Freshness

Last updated 2026-04-30 14:10:25.813284; freshness should be verified.

Geography

Torres Strait, Queensland, Australia, specifically between Goods Island and Tuesday Island.