IN2024_V05 ADCP Data: Multi-Year Marine Ecosystem Current Profiles

Three RDI Ocean Surveyor ADCPs (38kHz, 75kHz, 150kHz) collected current profile data during a 30-day fisheries research voyage in the southeast Australian marine ecosystem. Data acquisition was interrupted for extended periods to avoid interference with concurrent EK80 fish surveys. Post-processed using the Common Ocean Data Access System (CODAS), this dataset provides quality-controlled ocean current measurements for a multi-year ecosystem change study.

Use Cases

• Analyzing vertical current shear and water column structure from multi-frequency ADCP profiles.
• Calibrating oceanographic models using bottom-tracking data collected for one hour on the 150kHz instrument.
• Investigating the relationship between current patterns and fish distributions observed via concurrent EK80 surveys.
• Assessing long-term oceanographic changes as part of the 25-year SEA-MES ecosystem study.

Strengths

• Data is quality-controlled and archived by CSIRO's National Collections and Marine Infrastructure Information and Data Centre.
• Includes measurements from three distinct acoustic frequencies (38kHz, 75kHz, 150kHz), allowing analysis at different depth ranges.
• Covers a specific 30-day voyage period from November 13 to December 12, 2024, with detailed instrument configuration notes.

Limitations

• Column names, row counts, dataset size, license, and author information are not provided in any source.
• ADCP data collection was not continuous; instruments were turned off during EK80 surveys, creating gaps in the time series.
• The nominal transducer depth requires user adjustment if deemed necessary, adding a preprocessing step.

Provenance

Source

CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC).

Collection Method

Data collected using the University of Hawaii Data Acquisition System (UHDAS) from ship-mounted ADCPs during RV Investigator voyage IN2024_V05.

Time Range

Voyage period: November 13, 2024 to December 12, 2024 (AEST).

Freshness

Last updated on 2026-04-26 according to the most recent platform entry.

Geography

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