RV Investigator Voyage IN2023_V01 Hydrology 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), [e-mail], (custodian)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; Earth Science | Oceans | Ocean Chemistry | Nitrite; Earth Science | Oceans | Ocean Temperature | Water Temperature; Earth Science | Oceans | Ocean Chemistry | Phosphate; Earth Science | Oceans | Ocean Chemistry | Silicate; Earth Science | Oceans | Ocean Chemistry | Nutrients; Earth Science | Oceans | Ocean Chemistry | Ammonia; Earth Science | Oceans | Ocean Chemistry | Oxygen; Earth Science | Oceans | Ocean Chemistry | Nitrate; Earth Science | Oceans | Salinity/Density | Salinity; Marine National Facility; Research Voyage: IN2023_V01; Vessel/Station Data: Hydrology; Ship: Investigator (RV); Antarctic Bottom Water production in the past: Records from marine sediments; Cape Darnley; East Antarctica; Global / Oceans | Southern Ocean; Coastal Waters (Australia) | West Australia Coast South; WA; Coastal Waters (Australia) | Tasmania Coast East and Southeast; TAS; MNF Research voyage (ShortNameSuffix _vnn); Nutrient Analysers; Niskin Bottles; CTDs (Conductivity-Temperature-Depth Profilers); 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; research vessel; CTD; Antarc*; Antarctic; Antarctica; Southern Ocean
• Online Access: https://researchdata.edu.au/rv-investigator-voyage-hydrology-data/2373111

Maintenance and Update Frequency: asNeeded Statement: Data source: original field data. Water column and underway samples collected during the voyage were analysed in the ship’s hydrochemistry laboratory for dissolved oxygen (DO), salinity and, nutrients (silicate, phosphate, nitrate + nitrite (NOx), nitrite and ammonium). Overall, the quality of IN2023_V01 hydrology data is good. The measured nutrient reference materials (RMNS) were within 2% of their values. The bottle salinities and dissolved oxygen results were mostly within 0.004 PSU and 12 μmol L-1 respectively of the unprocessed CTD measurements. Nutrient samples were analysed using segmented flow SEAL AA3 and results are in µmol/L. In-house methods M1 V01, M2 V01, M3 V01, M4 V03 were used to analyse nutrients. Salinities were analysed using Guildline 8400B Autosal Lab salinometer and OSIL software, units are salinity units. Dissolved Oxygen concentrations were analysed using Scripps UV titrator and software, measured in ml/L and converted to µmol/L. Dissolved oxygen was analysed using in-house method M5 V02. All data were processed with HyPro 4.12 on the ship and re-processed on shore with HyPro 4.16. Note that nutrient data decimal places have changed within the CSV file: silicate is now 1 decimal place, nitrite is 3 decimal places and NOx (nitrate + nitrite), phosphate and ammonium are 2 decimal places. Previously values below the detection limit were set to zero; these values are now displayed as measured, even if that is a negative value. Salinity and Oxygen Data are displayed to 3 decimal places. Data processing notes are in the processing report (in2023_v01_HYD_ProcessingReport.pdf). The compressed file IN2023_V01_HYD_UWY_CSV.zip had NOX results swapped with PO4 results (sample 41 on).It was updated on 28/04/2023. Credit The data were processed by Peter Hughes and Alicia Camac (CSIRO NCMI) Credit The MNF must be acknowledged in all outputs derived from Data and/or Samples collected by, or with support from, the MNF. Acknowledge the MNF in ...