IN2023_V07: Antarctic Circumpolar Current ADCP Profiles from RV Investigator

November 15 to December 20, 2023, Acoustic Doppler Current Profiler (ADCP) data were collected during the RV Investigator voyage IN2023_V07, focusing on smaller scales of the Antarctic Circumpolar Current south of Tasmania. The data were processed by CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC) using the University of Hawaii Data Acquisition System (UHDAS) and Common Ocean Data Access System (CODAS).

Use Cases

• Analyze current velocity profiles based on ADCP data collected from transducers located approximately 7.2m below the water line.
• Study mesoscale ocean dynamics based on data from a voyage targeting smaller scales of the Antarctic Circumpolar Current.
• Validate ocean circulation models based on in-situ current measurements collected between November and December 2023.
• Assess instrument performance based on the description of OS75, WH75, and OS150 ADCP systems operating in different modes.

Strengths

• Data collection spanned a defined voyage period from November 15, 2023, to December 20, 2023.
• Post-processing was performed using documented systems (UHDAS and CODAS) and archived by CSIRO NCMI IDC.
• Transducer depth is specified as approximately 7.2m below the water line due to extended keels.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The OS75 ADCP was not operational, with the WH75 used as a replacement, which may affect data consistency.

Provenance

Source

Australian Ocean Data Network via data_gov_au, processed by CSIRO NCMI IDC.

Collection Method

Collected via Acoustic Doppler Current Profilers (OS150kHz and WH75kHz) on the RV Investigator, processed with UHDAS and CODAS.

Time Range

November 15, 2023 to December 20, 2023 (AEST).

Freshness

Last updated 2026-06-16 19:45:43.870974; freshness should be verified

Geography

Voyage departed from and returned to Hobart, focusing on an area south of Tasmania in the Antarctic Circumpolar Current.