IN2023_V07: Triaxus Oceanographic Data for Antarctic Circumpolar Current Dynamics

Five Triaxus tows collected 121.75 hours of multidisciplinary oceanographic data during the RV Investigator voyage IN2023_V07. The Australian Ocean Data Network published this data to validate SWOT satellite observations and study small-scale motions in the Antarctic Circumpolar Current south of Tasmania. Measurements include CTD, dissolved oxygen, nitrate, fluorescence, and plankton counts from a voyage between November 15 and December 20, 2023.

Use Cases

• Validate Surface Water Ocean Topography (SWOT) satellite sea surface height measurements based on in-situ subsurface CTD and nitrate data.
• Model heat and carbon transport across the Antarctic Circumpolar Current based on multidisciplinary measurements from a high-eddy-activity meander.
• Correlate small-scale sea surface height variability with subsurface ocean structure based on continuous, undulating sensor profiles.
• Study interconnected physical, biogeochemical, and biological processes at sub-mesoscales based on concurrent sensor data including fluorescence and plankton counts.

Strengths

• Data collection spanned 121.75 hours across 5 distinct tows, providing repeated temporal sampling.
• Includes duplicate sensor measurements for key parameters (pressure, conductivity, temperature, dissolved oxygen) to likely enhance reliability.
• Multidisciplinary measurements from nine different sensor types capture physical, chemical, and biological ocean properties.

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 notes software crashes and schedule failures during data collection, which may affect data continuity.

Provenance

Source

Australian Ocean Data Network

Collection Method

Data collected via towed TRIAXUS platform (hull #2) with a suite of sensors including SBE9plus CTD, deployed from RV Investigator.

Time Range

November 15, 2023 to December 20,我们发现 2023 (AEST)

Freshness

Last updated 2026-04-10 21:30:59.079658; freshness should be verified.

Geography

Ocean region south of Tasmania, within a standing meander of the Antarctic Circumpolar Current.