RV Investigator Sub-bottom Profiler Data from Antarctic COOKIES Voyage

Antarctic waters were surveyed by the RV Investigator voyage IN2026_V01 between January 02 and February 25, 2026. The Kongsberg SBP29 sub-bottom profiler collected acoustic data on sediment layers below the seafloor, using a frequency sweep from 2.5 to 7 kHz. Data are stored in .raw and .seg (SEG-Y) formats by CSIRO, totaling over 40 GB across 2,154 files.

Use Cases

• Map sediment layer interfaces based on specular reflection data.
• Analyze acoustic properties of seafloor sediments using the 2.5-7 kHz frequency sweep.
• Study geological features in Antarctic waters from the continuous voyage track.
• Process and visualize sub-bottom profiles using the SEG-Y format with real-time gain and filter corrections.

Strengths

• Data collection was continuous for the 55-day voyage, providing a complete temporal record.
• The SBP29 system offers a 3° by 3° angular resolution for detailed acoustic imaging.
• Data is available in both raw (.raw) and processed SEG-Y (.seg) formats, totaling over 40 GB.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for specific analyses.
• Freshness should be verified; the last metadata update was 2026-06-16.

Provenance

Source

Australian Ocean Data Network via data_gov_au

Collection Method

Acquired using a Kongsberg SBP29 sub-bottom profiler aboard the RV Investigator.

Time Range

January 02, 2026 to February 25, 2026

Freshness

Last updated 2026-06-16 20:30:05.670922

Geography

Antarctic waters, voyage departed from and returned to Hobart, Australia