Newcastle NSW Approaches Bathymetry Survey at 30m Resolution

A bathymetry survey covering an area east of the Approaches to Newcastle, NSW, acquired from 4 December 2020 to 15 January 2021. The survey was conducted for the Australian Hydrographic Office by Guardian Geomatics using a Kongsberg EM 2040-07 multibeam echosounder. Data was processed with Caris Hips & Sips software and exported as a 30-meter resolution, 32-bit floating point GeoTIFF grid.

Use Cases

• Modeling seafloor topography and morphology based on the bathymetry grid.
• Analyzing underwater features for marine habitat mapping based on the high-resolution survey data.
• Integrating bathymetric data with other marine datasets for coastal zone management based on the geospatial format.
• Conducting change detection studies of the seabed over time based on the precise acquisition period.

Strengths

• Data was acquired with a specific high-resolution multibeam echosounder (Kongsberg EM 2040-07).
• The final product is a georeferenced 30-meter resolution grid, providing consistent spatial detail.
• Survey has a precise acquisition period from 4 December 2020 to 15 January 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 Hydrographic Office, contracted to Guardian Geomatics.

Collection Method

Acquired onboard the MV Offshore Guardian using a Kongsberg EM 2040-07 multibeam echosounder and processed with Caris Hips & Sips.

Time Range

4 December 2020 – 15 January 2021

Freshness

Last updated 2026-05-14 09:35:19.461425; freshness should be verified.

Geography

Area east of the Approaches to Newcastle, New South Wales, Australia.