Van Diemen Gulf Bathymetry Survey at 30m Resolution (2021)

A bathymetry survey of the Van Diemen Gulf (North-West Inshore Route), Northern Territory, was conducted from 26 June 2021 to 5 October 2021. The survey was acquired for the Australian Hydrographic Office by Guardian Geomatics using a Kongsberg EM2040-07 MKII sonar system. The processed data is provided as a 30-meter resolution, 32-bit floating point GeoTIFF grid.

Use Cases

• Modeling seafloor topography based on the 30-meter resolution bathymetric grid.
• Analyzing underwater terrain features in Van Diemen Gulf based on the sonar survey data.
• Supporting marine spatial planning and environmental studies based on the high-resolution depth information.
• Creating nautical chart updates and aids to navigation research based on the hydrographic survey.

Strengths

• Data was collected using a specific, high-resolution sonar system (Kongsberg EM2040-07 MKII).
• The final product is a georeferenced 30-meter resolution grid, providing a consistent spatial data structure.
• Survey has a defined temporal scope from 26 June 2021 to 5 October 2021.

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 Ocean Data Network, originating from a survey for the Australian Hydrographic Office.

Collection Method

Contracted survey conducted by Guardian Geomatics using ship-mounted multibeam sonar, processed with CARIS HIPS and SIPS software.

Time Range

26 June 2021 – 5 October 2021

Freshness

Last updated 2026-06-16 19:17:01.193310; freshness should be verified.

Geography

Van Diemen Gulf (North-West Inshore Route), Northern Territory, Australia