Murray Marine Park Bathymetric Survey For Subsea Cable Route

Bathymetry and seabed feature data were collected along the proposed SSCN Segment 2-C subsea cable route within the Murray Marine Park. The survey was conducted by EGS onboard the RV Bold Explorer in April 2024, involving equipment calibration and a subsequent geotechnical sampling program. Data was published by the Australian Ocean Data Network.

Use Cases

• Model seafloor topography using multibeam echosounder (MBES) depth measurements for cable route planning.
• Identify seabed features and shallow geology layers to assess geohazards for infrastructure installation.
• Analyze bathymetric data within the Murray Marine Park boundary for environmental impact assessments.
• Calibrate acoustic survey data using DGPS positioning and USBL system verification records from the voyage.

Strengths

• Survey conducted with calibrated multibeam echosounder (MBES) and USBL systems.
• Data collection includes a subsequent geotechnical sampling program for ground truthing.
• Specific temporal record of survey operations from April 17-20, 2024.

Limitations

• Dataset explicitly states it is not to be used for navigational purposes, limiting its application.
• Unknown spatial resolution and point density of the bathymetric measurements.
• Sample data and total row/point count are unavailable for assessing dataset scale.

Provenance

Source

Australian Ocean Data Network, collected by EGS (survey contractor).

Collection Method

Acquired via hull-mounted and towed sensors, including multibeam echosounder (MBES), during a dedicated marine survey voyage.

Time Range

Primary survey operations occurred in April 2024.

Freshness

Data reflects a survey conducted in April 2024 and was last updated in the catalog in April 2026.

Geography

Confined to the Murray Marine Park along the proposed SSCN Segment 2-C subsea cable route, Australia.