AHO Reference Surfaces Darwin 0.5m Bathymetry Survey

A high-resolution bathymetry survey acquired for the Australian Hydrographic Office on 8 Jul 2020. Separate grids in 0.5m resolution are provided for two surveyed sites in Darwin NT, calibrated for multibeam echosounders. The dataset was processed using QPS Qimera and exported as a 32-bit floating point GeoTIFF.

Use Cases

• Calibrating multibeam echosounder systems based on the reference survey purpose
• Analyzing seabed topography based on 0.5m resolution bathymetry grids
• Comparing vertical datums (MSL, LAT, Ellipsoid) based on the separate grids provided

Strengths

• High-resolution 0.5m grid resolution for detailed seabed mapping
• Survey conducted with specific R2Sonic 2026 and R2Sonic 2024 equipment
• Data processed using industry-standard QPS Qimera software

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 Hydroscheme Industry Partnership Program

Collection Method

Contracted national reference survey acquired using R2Sonic multibeam echosounders

Time Range

Survey acquired on 8 Jul 2020

Freshness

Last updated 2026-05-05 02:26:40.095087; freshness should be verified

Geography

Darwin, Northern Territory, Australia