RV Investigator IN2026_V01 Sub-bottom Profiler Data for Antarctic Sediment Mapping

RV Investigator voyage IN2026_V01 collected sub-bottom profiler data for the Cook Ice Ecosystems and Sediments (COOKIES) project between January 02 and February 25, 2026. The Kongsberg SBP29 instrument logged continuous data with a 2.5 to 7 kHz frequency sweep and 3° by 3° angular resolution. Data are stored in .raw and .seg formats by CSIRO, with processed SEGY files containing gain corrections and attribute calculations.

Use Cases

• Map sediment layer interfaces and thickness based on specular reflection data.
• Analyze seafloor composition and structure using processed instantaneous amplitude attributes.
• Model acoustic properties of the seabed from the 2.5-7 kHz frequency sweep data.
• Correlate sub-bottom profiles with other oceanographic data collected during the COOKIES voyage.

Strengths

• Data collection was continuous for the 55-day voyage from January 02 to February 25, 2026.
• Processed SEGY files include applied gain corrections, matched filtering, and instantaneous amplitude attributes.
• The SBP29 profiler provides a 3° by 3° angular resolution for detailed acoustic imaging.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for specific modeling tasks.
• The description does not specify the exact spatial coverage or coordinate reference system.

Provenance

Source

Australian Ocean Data Network, collected by CSIRO aboard RV Investigator.

Collection Method

Acquired using a Kongsberg SBP29 sub-bottom profiler during voyage IN2026_V01.

Time Range

January 02, 2026 to February 25,我们发现 2026.

Freshness

Last updated 2026-06-23 05:45:00.505841; freshness should be verified.

Geography

Voyage departed from and returned to Hobart; likely covers areas of the Southern Ocean/Antarctic region.