RV Investigator Voyage IN2017_V03 Processed ADCP Data

This record describes the Acoustic Doppler Current Profiler (ADCP) data collected from the Marine National Facility RV Investigator voyage IN2017_V03, titled: "Sampling the abyss: latitudinal biodiversity patterns along the base of Australia’s eastern continental margin". The voyage took place between 15 May to 16 June 2017, departing from Bell Bay (TAS) and arriving in Brisbane (QLD).

Only the RDI Ocean Surveyor 75kHz ADCP was operational during this voyage. The system was turned off during net/instrument tows to ensure it didn’t interfere with the USBL.

The RDI Ocean Surveyor 150kHz ADCP was not operated due to a hardware fault, so all data was collected with the RDI Ocean Surveyor 75kHz ADCP, which was run in narrow band and broadband modes, depending on the ocean dept0068.
Internal triggering was used as external triggering was found to be unstable on previous voyages.

The drop keels were typically used at flush with Gondola (2m). The ship’s officers raised concerns about the keel locking pins getting damaged in rough weather, consequently the keels were retrieved to flush with hull during rough weather transits.
See the voyage computing and electronics report for more details regarding data acquisition.

This dataset was processed and then archived within the CSIRO Oceans and Atmosphere (O&A) Information and Data Centre (IDC) in Hobart.