AHO Reference Surfaces Torres Strait 0.5m 2023: Bathymetry Survey

The Torres Strait Reference Surfaces bathymetry survey was acquired for the Australian Hydrographic Office on 12 Dec 2021. It consists of separate 0.5m resolution grids for two surveyed sites, provided in MSL, LAT, and Ellipsoid vertical datums. The dataset was processed using QPS Qimera and exported as a 32-bit floating point GeoTIFF.

Use Cases

• Calibrating multibeam echosounders based on the described reference survey purpose.
• Modeling seafloor topography based on high-resolution bathymetric grids.
• Comparing vertical datums (MSL, LAT, Ellipsoid) based on the separate grids provided.

Strengths

• High-resolution 0.5m grid cells for detailed seafloor representation.
• Data provided in three vertical datums (MSL, LAT, Ellipsoid) for flexibility.
• Survey conducted using a specific multibeam system (Kongsberg EM2040D).

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Row count and total file size are unknown, which may limit suitability assessment.
• Explicitly not to be used for navigational purposes, limiting its application scope.

Provenance

Source

Australian Hydrographic Office, Geoscience Australia Data

Collection Method

Acquired via contracted national reference survey using Kongsberg EM2040D, processed with QPS Qimera.

Time Range

Survey acquired 12 Dec 2021.

Freshness

Last updated 2026-04-20 03:01:01.451486; freshness should be verified.

Geography

Torres Strait, between Goods Island and Tuesday Island/Herald Patches, Queensland, Australia.