SSCN Segment 2-C: Bathymetry Survey Data from Nelson Marine Park

April 2024 bathymetric survey data collected by EGS onboard the RV Bold Explorer for the Subsea Cable Network (SSCN) route. The dataset covers the Nelson Marine Park area and includes seabed feature and shallow geology investigations. It was published by Geoscience Australia Data and last updated in May 2026.

Use Cases

• Model seabed topography for subsea cable route planning based on the described bathymetry acquisition.
• Analyze seabed features and shallow geology for marine habitat mapping within the Nelson Marine Park.
• Calibrate multibeam echosounder (MBES) and USBL systems using the described offshore calibration procedures.
• Conduct geotechnical risk assessment for offshore infrastructure based on the subsequent sampling program mentioned.

Strengths

• Data collection followed a documented calibration and verification process for DGPS and gyros on April 17-18, 2024.
• Survey methodology is described, including wet testing of sensors and offshore calibration of shallow and deep water MBES.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is 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

Collection Method

Survey carried out by EGS onboard the RV Bold Explorer using multibeam echosounder (MBES) and USBL systems.

Time Range

Survey conducted in April 2024.

Freshness

Last updated 2026-05-14 04:10:12.064813; freshness should be verified.

Geography

Nelson Marine Park, Australia.