RV Investigator IN2024_V05: Acoustic Doppler Current Profiler Data

CSIRO's RV Investigator voyage IN2024_V05 collected Acoustic Doppler Current Profiler (ADCP) data for the SEA-MES Voyage 3 ecosystem study. Data from three RDI Ocean Surveyor instruments (38kHz, 75kHz, 150kHz) were acquired in narrowband mode using the UHDAS system and post-processed with CODAS. This dataset supports analysis of ocean currents in the southeast Australian marine ecosystem, though data collection was intermittent to avoid interference with concurrent EK80 fisheries surveys.

Use Cases

• Calibrating ocean current models using bottom-tracking data from the OS150nb instrument.
• Analyzing temporal patterns in water column currents from time-series ADCP measurements.
• Investigating the relationship between oceanographic conditions and marine ecosystem changes in southeast Australia.
• Assessing potential acoustic interference between ADCP and EK80 echosounder systems during fisheries voyages.

Strengths

• Data is quality-controlled and archived by CSIRO's National Collections and Marine Infrastructure Information and Data Centre.
• Includes measurements from three distinct ADCP frequencies (38kHz, 75kHz, 150kHz) for multi-depth profiling.
• Covers a defined 30-day research voyage (November 13 to December 12, 2024) with a specific scientific mission.

Limitations

• ADCP data acquisition was not continuous, with instruments turned off during EK80 surveys to avoid interference.
• Key metadata such as row count, file size, specific license, and column schema are not provided in the source descriptions.
• The nominal transducer depth of 6 meters may require user adjustment based on the 2-meter drop keel setting.

Provenance

Source

Australian Ocean Data Network, collected via CSIRO Marine National Facility RV Investigator.

Collection Method

Data collected using the University of Hawaii Data Acquisition System (UHDAS) and post-processed with the Common Ocean Data Access System (CODAS).

Time Range

November 13, 2024 to December 12, 2024 (AEST).

Freshness

Last updated on data.gov.au on 2026-04-18.

Geography

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