Acoustic Doppler Current Profiler Data from RV Investigator Voyage IN2024_V05

Acoustic Doppler Current Profiler (ADCP) data collected during the RV Investigator voyage IN2024_V05 from November 13 to December 12, 2024. The data were acquired using three RDI Ocean Surveyor ADCPs (38kHz, 75kHz, 150kHz) in narrowband mode and processed using the UHDAS and CODAS systems. The voyage, titled 'Multi-year: Untangling the causes of change over 25 years in the southeast marine ecosystem,' departed from and returned to Hobart.

Use Cases

• Analyze current profiles from the 38kHz, 75kHz, and 150kHz ADCPs to study oceanographic conditions during the voyage.
• Investigate periods of ADCP data gaps, as the instruments were turned off during EK80 surveys to avoid acoustic interference.
• Apply bottom tracking data from the OS150nb ADCP, collected for one hour, to calibrate current measurements.
• Study time series data from the voyage to examine changes in the southeast marine ecosystem over a 25-year context.

Strengths

• Data were collected using three specific ADCP instruments (38kHz, 75kHz, 150kHz) in narrowband mode.
• Data were post-processed and quality-controlled using the established UHDAS and CODAS systems.
• The voyage provides a specific temporal coverage from November 13 to December 12, 2024.
• The dataset is associated with a defined research mission focused on a multi-year ecosystem study.

Limitations

• ADCP data acquisition was interrupted for long periods when the EK80 system was in use, creating gaps in the time series.
• The nominal transducer depth is set to 6 meters, but users may need to apply corrections based on the keel depth of 2 meters and their own requirements.
• The dataset's specific row count, column structure, and sample data are not provided, limiting initial assessment of its analytical scope.

Provenance

Source

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

Collection Method

Data collected using ship-mounted Acoustic Doppler Current Profilers (ADCPs) and processed with the University of Hawaii Data Acquisition System (UHDAS) and Common Ocean Data Access System (CODAS).

Time Range

November 13, 2024 to December 12, 2024.

Freshness

Data was last updated on March 21, 2026.

Geography

Southeast marine ecosystem, voyage departed from and returned to Hobart, Tasmania.