RV Investigator Sub-bottom Profiler Data from Voyage IN2026_V01

1079 raw files of sub-bottom profiler data collected during the RV Investigator voyage IN2026_V01 between January 02 and February 25, 2026. The Kongsberg SBP29 instrument acquired acoustic reflections from sediment interfaces below the seafloor using a frequency sweep from 2.5 to 7 kHz. Data are stored in .raw and .seg formats by CSIRO.

Use Cases

• Map sediment layer thickness and structure based on acoustic reflections.
• Analyze sub-seafloor geological features based on continuous profiler logging.
• Study sediment interface properties based on instantaneous amplitude and gain-corrected attributes.

Strengths

• Data collection was continuous for the extent of the 55-day voyage.
• Processed data includes gain correction, matched filtering, and attribute calculation.
• Raw data comprises 1079 files totaling 20.2 GB.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the specific voyage track.

Provenance

Source

CSIRO Marlin Data Catalogue

Collection Method

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

Time Range

January 02, 2026 to February 25, 2026

Freshness

Last updated 2026-06-13 05:48:44.912885; freshness should be verified.

Geography

Voyage departed from and returned to Hobart; specific track unknown.