{"help": "https://data.gov.au/data/api/3/action/help_show?name=package_show", "success": true, "result": {"archived": false, "author_email": null, "contact_point": "data-requests-hf@csiro.au", "creator_user_id": "c2fbbe4a-4ba0-4945-808b-67454605a4cf", "duplicate_score": 2, "geospatial_topic": [], "id": "8c4b28c8-0845-4d66-86d9-4a9a67f3c936", "isopen": false, "language": "eng", "license_id": "notspecified", "license_title": "notspecified", "maintainer": null, "maintainer_email": null, "metadata_created": "2025-07-31T22:02:16.483277", "metadata_modified": "2025-07-31T22:02:16.483284", "name": "rv-investigator-voyage-in2025_v04-hydrology-data", "notes": "This record describes Hydrology (HYD) data collected from the Marine National Facility (MNF) RV Investigator voyage IN2025_V04, titled:\"Untangling the causes of change over 25 years in the southeast marine ecosystem - Voyage IV .\" The voyage took place between May 27, 2025 and June 28, 2025 (AEST), departing from Hobart and returning to Hobart.\nWater samples collected during CTD deployments were processed in the ship\u2019s hydrochemistry laboratory and analysed for key parameters, including nutrients, dissolved oxygen, and salinity. Dissolved inorganic carbon and total alkalinity samples were also collected at selected stations to continue the time series established during previous voyages, with these samples to be analysed on shore by the CSIRO carbon team. Additionally, Thermosalinograph (TSG) samples were continuously collected throughout the voyage, with on-board measurements of their salinity used to calibrate the ship's underway system.\nPlease cite the following manuscript when reporting or publishing data for silicate, phosphate, nitrate+nitrite (NOx) and nitrite:\nRees, C., L. Pender, K. Sherrin, C. Schwanger, P. Hughes, S. Tibben, A. Marouchos, and M. Rayner. (2018) \u201cMethods for reproducible shipboard SFA nutrient measurement using RMNS and automated data processing.\u201d Limnol. Oceanogr: Methods, 17(1): pp. 25-41. doi:10.1002/Iom3.10294\nIf publishing ammonium data, please cite the following:\nRees, C., Janssens, J., Sherrin, K., Hughes, P., Tibben, S., McMahon, M., McDonald, J., Camac, A., Schwanger, C. and Marouchos, A., (2021) \u201cMethod for Reproducible Shipboard Segmented Flow Analysis Ammonium Measurement Using an In-House Reference Material for Quality Control.\u201d Frontiers in Marine Science, 8. doi:10.3389/fmars.2021.581901\nThis dataset has been processed (quality-controlled), and archived at the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC) in Hobart. 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