Van Diemen Gulf Bathymetry Grid From 2021 Multibeam Survey

June to October 2021 bathymetry survey of Van Diemen Gulf, Northern Territory, acquired for the Australian Hydrographic Office. Data was processed into a 30-meter resolution, 32-bit floating point GeoTIFF grid covering the survey area.

Use Cases

• Model seafloor topography using the 30-meter resolution bathymetry grid for coastal geomorphology studies.
• Analyze depth variations within the Van Diemen Gulf survey area for habitat mapping.
• Integrate the 32-bit floating point GeoTIFF with other marine spatial data for regional planning.
• Assess data acquisition characteristics from the Kongsberg EM2040-07 MKII multibeam system for sensor performance comparison.

Strengths

• Data acquired with a Kongsberg EM2040-07 MKII multibeam system, a high-precision instrument.
• Processed and exported as a 30-meter resolution grid, providing detailed spatial coverage.
• Survey conducted over a defined period from 26 June to 5 October 2021.

Limitations

• Dataset explicitly states it is not to be used for navigational purposes, limiting its operational application.
• Unknown total data volume, row count, and column structure, complicating initial assessment for analysis.

Provenance

Source

Geoscience Australia Data, originating from a survey for the Australian Hydrographic Office.

Collection Method

Contracted survey acquired onboard MV Offshore Guardian and MV Special Order, processed using CARIS HIPS and SIPS software.

Time Range

26 June 2021 – 5 October 2021.

Freshness

Metadata last updated March 2026, though underlying survey data is from 2021.

Geography

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