SI 1001: Bathymetry Survey of Newcastle, NSW Approaches (2020-2021)

A bathymetry survey of the seafloor east of the Approaches to Newcastle, NSW, conducted from 4 December 2020 to 15 January 2021. The survey was acquired for the Australian Hydrographic Office onboard the MV Offshore Guardian by Guardian Geomatics under the Hydroscheme Industry Partnership Program. Data was processed using Caris Hips & Sips software and exported 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 coastal geomorphology in the Newcastle, NSW region based on the described survey area.
• Supporting marine spatial planning and environmental studies using the high-resolution depth data.
• Integrating with other hydrographic datasets for the Australian region based on the AHO provenance.

Strengths

• Data collection used a Kongsberg EM 2040-07 multibeam echosounder, a specific high-precision instrument.
• The final product is a 30-meter resolution grid, providing a defined level of spatial detail.
• Survey has a precise temporal coverage from 4 Dec 2020 to 15 Jan 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.
• The dataset is explicitly not to be used for navigational purposes, limiting its primary application.

Provenance

Source

Australian Hydrographic Office (AHO), collected by Guardian Geomatics.

Collection Method

Acquired via ship-based multibeam echosounder (Kongsberg EM 2040-07) and processed with Caris Hips & Sips software.

Time Range

4 December 2020 – 15 January 2021

Freshness

Last updated 2026-04-28 14:00:25.331352; freshness should be verified.

Geography

East of the Approaches to Newcastle, New South Wales, Australia.