RV Investigator Voyage IN2019_V02 Triaxus (undulating CTD) Data

• Other Authors: CSIRO (hasAssociationWith), CSIRO O&A, Information & Data Centre (pointOfContact), CSIRO Oceans & Atmosphere - Hobart (hasAssociationWith), CSIRO/Oceans and Atmosphere (hasAssociationWith), Data Officer (AR), Hobart (processor), Dirita, Vito (originator)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; Earth Science | Oceans | Ocean Pressure | Water Pressure; Earth Science | Oceans | Ocean Optics | Turbidity; Earth Science | Oceans | Salinity/Density | Salinity; Earth Science | Oceans | Ocean Chemistry | Chlorophyll; Earth Science | Oceans | Ocean Temperature | Water Temperature; Earth Science | Oceans | Ocean Optics | Photosynthetically Active Radiation; Earth Science | Terrestrial Hydrosphere | Water Quality/Water Chemistry | Light Transmission; Fluorometers; Radiation Sensors; NOX monitor; Cell Counters; Nephelometers; Altimeters; CTDs (Conductivity-Temperature-Depth Profilers); Undulating CTD - Triaxus; Global / Oceans | Southern Ocean; Coastal Waters (Australia) | Tasmania Coast East and Southeast; TAS; Marine Features (Australia) | Derwent Estuary; Marine National Facility; Research Voyage: IN2019_V02; SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania; Vessel Data: undulating CTD; Ship: Investigator (RV); Practical salinity of the water body; Temperature of the water body; Pressure (measured variable) in the water body exerted by overlying sea water and any medium above it; Pressure (measured variable) in the water body exerted by overlying sea water only; CTD; research vessel; Southern Ocean
• Online Access: https://researchdata.edu.au/rv-investigator-voyage-ctd-data/1408925

Progress Code: completed Maintenance and Update Frequency: asNeeded Statement: Original field data. Data processing and quality control by the MNF Data Acquisition and Processing Group (DAP). Data archived by CSIRO O&A - IDC. Credit Triaxus data processed by Francis Chui (CSIRO O&A). This record describes the data (CTD, Dissolved Oxygen, Transmissometer, PAR, ECO Triplet, Nitrate, Fluorescence and LOPC) collected using the towed TRIAXUS platform on Investigator voyage IN2019_V02, titled: "SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania; Subantarctic Biogeochemistry of Carbon and Iron, Southern Ocean Time Series Site". The voyage took place from Hobart (TAS) to Hobart (TAS) between 14th March to 4th April, 2019. Data for 3 Triaxus deployments were acquired in CAP CTD acquisition software using the Seabird SBE911 CTD 20. The deployments were conducted with a standard tow speed of between 7 to 9 knots and wire out ranged from 1050 to 1210 m. During the first two deployments, we encountered issues with the Transmissometer and biofouling of sensors. On the second deployment a communications issue was also addressed. Sea-Bird-supplied calibration factors and CSIRO supplied calibrations were used to compute the pressures, conductivity and temperature data. The data were subjected to automated QC to remove spikes and out-of-range values. Dissolved oxygen sensors, Transmissometer and Cosine Photosynthetically Active Radiation (PAR) sensor were also installed on the auxiliary A/D channels of the CTD. In addition to the auxiliary channels, ECO Triplet, Nitrate, FIRe and LOPC were mounted on the Triaxus as attached payloads. The standard data product (1 decibar/10 second binned averaged) was produced using data from the secondary sensors to produce an along-track time-series dataset for each CAP scan files. These scan files were grouped into legs, each containing a section of the Triaxus deployment and in each leg, vertical casts were created ...