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

A 30-meter resolution bathymetric grid of the Van Diemen Gulf's North-West Inshore Route in Australia's Northern Territory. The survey was acquired for the Australian Hydrographic Office by Guardian Geomatics between 26 June and 5 October 2021, using a Kongsberg EM2040-07 MKII multibeam echosounder. Data was processed with CARIS HIPS and SIPS software and exported as a 32-bit floating point GeoTIFF.

Use Cases

• Modeling underwater terrain and slope analysis based on the high-resolution bathymetric grid.
• Assessing seabed composition and habitat mapping based on depth and backscatter data implied by the survey method.
• Supporting marine spatial planning and environmental impact assessments based on the detailed seafloor topography.
• Creating nautical chart updates and aids to navigation planning based on the survey's stated purpose for the Australian Hydrographic Office.

Strengths

• Specific 30-meter spatial resolution for detailed seafloor mapping.
• Data collection used a Kongsberg EM2040-07 MKII multibeam echosounder, a known industry-standard instrument.
• Clear temporal coverage from 26 June to 5 October 2021.

Limitations

• The description explicitly states 'This dataset is not to be used for navigational purposes.', limiting its primary application.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and total file size are unknown, which may limit suitability assessment.

Provenance

Source

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

Collection Method

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

Time Range

26 June 2021 to 5 October 2021

Freshness

Last updated 2026-04-20 03:04:55.729269; freshness should be verified.

Geography

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