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

A 30-meter resolution bathymetric grid of 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 is provided as a 32-bit floating point GeoTIFF.

Use Cases

• Modeling coastal erosion and sediment transport based on detailed seafloor topography.
• Planning marine infrastructure projects using precise bathymetric measurements.
• Creating nautical charts and updating maritime safety information based on surveyed depths.
• Studying benthic habitats and marine ecology using the high-resolution geospatial grid.

Strengths

• Specific 30-meter spatial resolution for detailed analysis.
• Clear temporal coverage from 26 June to 5 October 2021.
• Data acquired using a named, modern sensor (Kongsberg EM2040-07 MKII).

Limitations

• 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.
• The description explicitly states the dataset is not to be used for navigational purposes.

Provenance

Source

Geoscience Australia Data, acquired for the Australian Hydrographic Office.

Collection Method

Contracted survey conducted by Guardian Geomatics using multibeam echosounder, processed with CARIS HIPS and SIPS.

Time Range

26 June 2021 – 5 October 2021

Freshness

Last updated 2026-05-14 09:43:10.766217; freshness should be verified.

Geography

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