Hobart Bathymetry Reference Surfaces at 0.5m and 1m Resolution

October 10 to November 8, 2021 bathymetry survey data acquired for the Australian Hydrographic Office in Hobart, Tasmania. The surface was created from a contracted national reference survey for calibrating multibeam echosounders, processed using QPS Qimera. Separate 32-bit floating point GeoTIFF grids are provided in 0.5m and 1m resolutions for two surveyed sites.

Use Cases

• Calibrating multibeam echosounder systems based on the reference survey purpose mentioned in the description
• Analyzing high-resolution seafloor topography based on the 0.5m and 1m resolution grids
• Comparing vertical datums (MSL, LAT, Ellipsoid) for hydrographic applications based on the provided datum types
• Developing baseline bathymetric models for specific survey sites in Hobart based on the two surveyed sites mentioned

Strengths

• High-resolution grids at 0.5m and 1m resolutions
• Data collected with a specific Kongsberg EM2040D multibeam echosounder
• Processed using industry-standard QPS Qimera software
• Provides 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
• Row count is unknown, which may limit suitability assessment

Provenance

Source

Australian Ocean Data Network

Collection Method

Acquired via a contracted national reference survey using a Kongsberg EM2040D multibeam echosounder and processed with QPS Qimera.

Time Range

October 10 to November 8, 2021

Freshness

Last updated 2026-04-10 18:10:10.252300; freshness should be verified

Geography

Hobart, Tasmania, Australia