RV Investigator Voyage IN2025_V06 ADCP Data

Updated: 2026-08-28

This record describes the Acoustic Doppler Current Profiler (ADCP) data collected from the Marine National Facility RV Investigator voyage IN2025_V06, titled: "The Coral Sea frontier: Deep-sea biodiversity assessment of the Coral Sea Marine Park." The voyage took place between October 10, 2025 and November 14, 2025 (AEST), departing from Brisbane and returning to Brisbane. The ADCP was run for most of the voyage, though it was turned off when EK80 surveys were being performed to avoid creating interference in the EK80 data. ADCP data were collected using the University of Hawaii Data Acquisition System (UHDAS) and post-processed using the Common Ocean Data Access System (CODAS). Documentation for these systems can be found in (Hummon, 2009-2021). The RDI Ocean Surveyor 150kHz ADCP and RDI Ocean Surveyor 75kHz ADCP were run in narrowband mode. Internal triggering was used. The drop keel was set at 2 m below the hull for the duration of the voyage. The nominal transducer depth is set to 6 meters, any additional changes will need to be applied by the user if they believe it is required. Bottom tracking was run for the first hour of the voyage on the OS150nb to aid in calibrations. No OS38kHz ADCP data was collected for the duration of the voyage. For more information please see the Processing Report (linked below). This dataset was processed (quality-controlled), and then archived by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC).