RV Investigator Voyage IN2021_V01 Hydrology Data

• Other Authors: CSIRO (hasAssociationWith), CSIRO O&A, Information & Data Centre (pointOfContact), CSIRO Oceans & Atmosphere - Aspendale (hasAssociationWith), CSIRO Oceans & Atmosphere - Floreat (hasAssociationWith), CSIRO Oceans & Atmosphere - Hobart (hasAssociationWith), CSIRO Oceans & Atmosphere - IOMRC Crawley (hasAssociationWith), CSIRO Oceans & Atmosphere - St. Lucia (hasAssociationWith), CSIRO/Oceans and Atmosphere (hasAssociationWith), Data Officer (DW), Hobart (processor), Dirita, Vito (originator), Hughes, Peter (processor), Lenton, Andrew (hasAssociationWith), Lynch, Tim (hasAssociationWith), Matear, Richard (hasAssociationWith), McMahon, Merinda (processor)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; Earth Science | Oceans | Ocean Chemistry | Phosphate; Earth Science | Oceans | Ocean Temperature | Water Temperature; Earth Science | Oceans | Ocean Chemistry | Silicate; Earth Science | Oceans | Ocean Chemistry | Nitrite; 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: IN2021_V01; Vessel/Station Data: Hydrology; Ship: Investigator (RV); A comparison of otolith microchemistry and genetic techniques for evaluation of the stock structure of the jackass morwong (FIRDC project no. 91/32) 1991-1992; Global / Oceans | Southern Ocean; Coastal Waters (Australia) | Tasmania Coast East and Southeast; TAS; MNF Trial voyage (ShortNameSuffix _enn); MNF Research voyage (ShortNameSuffix _vnn); MNF Transit voyage (ShortNameSuffix _tnn); MNF Event voyage (ShortNameSuffix _enn); MNF Charter voyage (ShortNameSuffix _cnn); Niskin Bottles; CTDs (Conductivity-Temperature-Depth Profilers); Nutrient Analysers; 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; Southern Ocean
• Online Access: https://researchdata.edu.au/rv-investigator-voyage-hydrology-data/1881645

Maintenance and Update Frequency: asNeeded Statement: Data source: original field data. 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. Salinity samples were measured on a Guildline Autosal 8400B instrument operated in accordance with its technical manual. The measured value is recorded with an OSIL data logger. 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 5.7. 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 (in2021_v01_HYD_ProcessingReport.pdf). Credit The data was processed by Peter Hughes & Merinda McMahon (CSIRO NCMI). This record describes Hydrology (HYD) data collected from the Marine National Facility RV Investigator voyage IN2021_V01, titled: "Quantifying krill abundance for krill monitoring and management off the Australian Antarctic Territory." The voyage took place between January 29 and March 25, 2021 departing from Hobart (TAS) and arriving in Hobart. . Water samples collected during the voyage were analysed in the ship’s hydrochemistry laboratory for nutrients, dissolved oxygen, and salinity. Five nutrients were determined: silicate, phosphate, nitrate + nitrite, nitrite and ammonium. Certified reference materials for nutrients in seawater (RMNS) were within 3% of their certified values. CTD deployment versus measured RMNS values are listed in Appendix 8.2 Missing and suspect hydrology data ...