RV Investigator Voyage IN2023_V07 Antarctic Circumpolar Current ADCP Data

November 15 to December 20, 2023, acoustic Doppler current profiler (ADCP) data was collected aboard the RV Investigator during voyage IN2023_V07, focusing on the Antarctic Circumpolar Current south of Tasmania. The data was processed by CSIRO's National Collections and Marine Infrastructure Information and Data Centre using the University of Hawaii Data Acquisition System (UHDAS) and Common Ocean Data Access System (CODAS). Two instruments were used: an RDI Ocean Surveyor OS150kHz in narrowband mode and an RDI Ocean Surveyor WH75kHz in broadband mode.

Use Cases

• Analyzing current velocity profiles based on ADCP data collected from extended drop keels.
• Studying smaller-scale ocean dynamics within a meander of the Antarctic Circumpolar Current based on the voyage's scientific focus.
• Validating ocean circulation models using quality-controlled, post-processed current data from a specific time and location.
• Investigating the performance and data characteristics of different ADCP operating modes (narrowband vs. broadband) used during the voyage.

Strengths

• Data covers a specific 36-day voyage from November 15 to December 20, 2023.
• Processing report is available, indicating documented quality control procedures.
• Specific instrument configurations are documented, including transducer depth of approximately 7.2 meters below the water line.

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/temporal bias inherent to data_gov_au, being a single voyage in a specific region.

Provenance

Source

Australian Ocean Data Network, CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC).

Collection Method

Collected via ship-mounted ADCP instruments and processed with UHDAS and CODAS.

Time Range

2023-11-15 to 2023-12-20

Freshness

Last updated 2026-06-23 03:13:28.295792; freshness should be verified.

Geography

Ocean region south of Tasmania, departing from and returning to Hobart.