This record describes Hydrology (HYD) data collected from the Marine National Facility (MNF) RV Investigator voyage IN2023_E01, titled: "Sea Trials e01." The voyage took place between 7 to 14 January, 2023, departing from Fremantle (WA) and returning to Fremantle. Hydrology samples were collected from Niskin bottles sampled at various depths during Conductivity-Temperature-Depth (CTD) deployments. Parameters analysed were salinity, dissolved oxygen, phosphate, silicate, nitrate plus nitrite and ammonium. This dataset has been processed (quality-controlled), and archived at the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC) in Hobart. Additional information regarding this dataset is contained in the Voyage Report and Data Processing Report.

This record describes the End of Voyage (EOV) data archive from the Marine National Facility (MNF) RV Investigator voyage IN2024_V01, titled "Multidisciplinary Investigations of the Southern Ocean (MISO): linking physics, biogeochemistry, plankton, aerosols, clouds, and climate." The voyage took place between January 02, 2024 and March 05, 2024 (AEST), departing from Hobart and returning to Fremantle. For further information please refer to the voyage documentation links. Instruments used and data collected include: Regular measurements: Lowered ADCP (LADCP), Acoustic Doppler Current Profiler (ADCP; 75, 150 KHz ), Greenhouse Gas Analysers (Picarro), Cloud Condensation Nuclei counter (CCN), Condensation Particle Counters (CPC), Disdrometer, Radon sensor, Scanning Mobility Particle Sizers (SMPS), CTD, Hydrochemistry, Triaxus, Fisheries Echosounder (EK80), Multibeam Echosounder (EM710, EM122), Sub-bottom Profiler (SBP120), GPS Positioning System, Doppler Velocity Log, Thermosalinographs (TSG), Fluorometer, Oxygen Optode, pCO2, Multiangle Absorption Photometer (MAAP), Ozone Sensor, Nephelometer, Atmospheric Temperature, Humidity, Pressure, Wind and Rain sensors, Photosynthetically Active Radiation (PAR) sensor, Precision Infrared Radiometer (PIR), Precision Spectral Pyranometer (PSP), Starboard and Portside Radiometers, Air Sampler, Ultra Short BaseLine Underwater Positioning System (USBL), Weather Radar, Expendable Bathythermographs (XBTs). Voyage-specific measurements: Black Carbon sensor (Aethalometer), Mobility particle size spectrometer (MPSS), Bongo Net, Chemical Ionisation Mass Spectrometer (CIMS), Cloud Radar (BASTA), Fast Repetition Rate Chlorophyll-a Fluorometer (FRRf), Mini Micro-Pulse LIDAR (miniMPL), Micro Rain Radar (MRR), Neutral Cluster Air Ion Spectrometer (NAIS), Proton-Transfer-Reaction Mass Spectrometry (PTR-MS), Radiosondes, Cloud and Aerosol Backscatter Lidar (RMAN), Stabilised Platform, Mercury Analyser (Tekran), Time of Flight Aerosol Chemical Speciation Monitor (ToF-ACSM), Water Vapor Radiometer (WVR), Aerosol mass spectrometer (AMS), Core Argo floats, Biogeochemical (BGC) Argo floats, Near-surface Drifters, In situ pumps (ISPs), Ice Nucleating Particles (INPs), Ozone Sensor, Trace Metal Aerosol Sampling, Trace Metal CTD Rosette and Bottles, Organic Sulfur Sequential Chemical Analysis Robot (OSSCAR), Omics data and various biological data. The archive for the IN2024_V01 EOV raw data is curated by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC) in Hobart, with a permanent archive at the CSIRO Data Access Portal (https://data.csiro.au/), providing access to voyage participants and processors of the data collected on the voyage. All voyage documentation is available electronically to MNF support via the local network. Applications to access voyage documentation by non-CSIRO participants can be made via data-requests-hf@csiro.au. All processed data from this voyage are made publicly available through the MNF Data Trawler (in the related links).

This record describes Hydrology (HYD) data collected from the Marine National Facility (MNF) RV Investigator voyage IN2024_V03, titled: "Untangling the causes of change over 25 years in the southeast marine ecosystem (SEA-MES Voyage 2)." The voyage took place between May 1 and May 31, 2024, departing from Hobart (TAS) and arriving in Sydney (NSW) Hydrology samples were collected from Niskin bottles sampled at various depths during Conductivity-Temperature-Depth (CTD) deployments. Parameters analysed were salinity, dissolved oxygen, phosphate, silicate, nitrate plus nitrite and ammonium. This dataset has been processed (quality-controlled), and archived at the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC) in Hobart. Additional information regarding this dataset is contained in the Voyage Report and Data Processing Report.

This record describes the End of Voyage (EOV) data archive from the Marine National Facility (MNF) RV Investigator voyage IN2024_V05, titled "Multi-year: Untangling the causes of change over 25 years in the southeast marine ecosystem (SEA-MES Voyage 3)." The voyage took place between November 13, 2024 and December 12, 2024 (AEST), departing from Hobart and returning to Hobart. For further information please refer to the voyage documentation links. Instruments used and data collected include: Regular measurements: Lowered ADCP (LADCP), Acoustic Doppler Current Profiler (ADCP; 38, 75, 150 KHz ), CTD, Hydrochemistry, Gravimeter, Fisheries Echosounder (EK80), Multibeam Echosounder (EM712, EM124), Sub-bottom Profiler (SBP29), Starboard and Portside Radiometers, Air Sampler, Ultra Short BaseLine Underwater Positioning System (USBL), GPS Positioning System, Doppler Velocity Log, Thermosalinographs (TSG), Fluorometer, Oxygen Optode, Atmospheric Temperature, Humidity, Pressure, Wind and Rain sensors, Photosynthetically Active Radiation (PAR) sensor, Precision Infrared Radiometer (PIR), Precision Spectral Pyranometer (PSP), ITI Trawl Net. Voyage-specific measurements: Demersal Trawl, Multiple Plankton Sampler (HydroBIOS Multinet), Video, Wildlife Observations (seabirds, cetaceans and seals). The archive for the IN2024_V05 EOV raw data is curated by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC) in Hobart, with a permanent archive at the CSIRO Data Access Portal (https://data.csiro.au/), providing access to voyage participants and processors of the data collected on the voyage. All voyage documentation is available electronically to MNF support via the local network. Applications to access voyage documentation by non-CSIRO participants can be made via data-requests-hf@csiro.au All processed data from this voyage are made publicly available through the MNF Data Trawler (in the related links)

This record describes the End of Voyage (EOV) archive from the Marine National Facility (MNF) RV Investigator research voyage in2017_c01, titled "GAB deep water geological and benthic ecology program." The voyage took place from Hobart (TAS) to Hobart between April 11 and April 28, 2017. For further information refer to the Voyage documentation links below. Instruments used and data collected include: Regular measurements: Absorption Photometer, Acoustic Doppler Current Profiler (ADCP; 75 KHz ), Fisheries echosounder (EK60), Multibeam Echosounder (EM710, EM122), Sub-bottom Profiler (SBP120), Gravimeter, GPS Positioning System, Doppler Velocity Log, Ultra Short BaseLine Underwater Positioning System (USBL), Starboard and Portside Radiometers, Radon, Ozone and Oxygen sensors, Weather Radar, Greenhouse Gas Analysers (Aerodyne, Picarro), Air Pressure, Wind Speed and Direction sensors, Thermosalinographs, CTD, Hydrochemistry, Expendable Bathythermographs (XBTs), Underway. Voyage-specific measurements: Lowered ADCP (LADCP), Nephelometer, pCO2, ECO Triplet, Hydrophones, Video. The archive for the IN2017_C01 EOV raw data is curated by the CSIRO Oceans and Atmosphere (O&A) Information and Data Centre (IDC) in Hobart, with a permanent archive at the CSIRO Data Access Portal (DAP, https://data.csiro.au/dap/), providing access to participants and processors of the data collected in the voyage. All voyage documentation is available electronically to MNF support via the local network. Access to voyage documentation for non-CSIRO participants can be made via DataLibrariansOAMNF@csiro.au.

This record describes Hydrology (HYD) data collected from the Marine National Facility (MNF) RV Investigator voyage IN2025_V02, titled: "Multiyear: Integrated Marine Observing System (IMOS) Southern Ocean Time Series (SOTS) Strategic Partnership." The voyage took place between March 26, 2025 and April 14, 2025 (AEST), departing from Hobart and returning to Hobart. Water samples collected during the voyage were analysed in the ship’s hydrochemistry laboratory for nutrients, dissolved oxygen, and salinity. No significant sample collection, analysis, or data processing issues were encountered for reporting. Five nutrients were determined: silicate, phosphate, nitrate + nitrite, nitrite and ammonium using a Seal AA3 autoanalyser. Certified reference materials for nutrients in seawater (RMNS) were within certified expanded uncertainty. Missing and suspect hydrology samples are listed in Appendix, Missing or Suspect Nutrient Data. For more information please refer to the Data Processing Report linked below. This dataset has been processed (quality-controlled), and archived at the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC) in Hobart. Additional information regarding this dataset is contained in the Voyage Report and Data Processing Report.

This record describes the End of Voyage (EOV) archive from the Marine National Facility (MNF) RV Investigator research voyage in2018_v01, titled "Detecting Southern Ocean change from repeat hydrography, deep Argo and trace element biogeochemistry & CAPRICORN." The voyage took place from Hobart (TAS) to Hobart between January 11 and February 22, 2018. There were two science projects in this voyage: 1) Detecting Southern Ocean change from repeat hydrography, deep Argo and trace element biogeochemistry 2) CAPRICORN (Clouds, Aerosols, Precipitation, Radiation, and Atmospheric Composition over the Southern Ocean). For further information refer to the Voyage documentation links below. Instruments used and data collected include: Regular measurements: Acoustic Doppler Current Profiler (ADCP; 75, 150 KHz ), Lowered ADCP (LADCP), Fisheries echosounder (EK60), GPS Positioning System, Doppler Velocity Log, Met station (temp, humidity, pressure, wind, rain, PIR, PSP, PAR), pCO2, Starboard and Portside Radiometers, Radon and Ozone sensors, Weather Radar, Greenhouse Gas Analysers (Aerodyne, Picarro), Air Pressure, Wind Speed and Direction sensors, Photosynthetically Active Radiation (PAR) sensor, Seawater (TSG, fluorometer, optode), Thermosalinographs, CTD, Hydrochemistry. Voyage-specific measurements: Aerosol Aerodynamic Particle sizer (APS), Aerosol Chemical Speciation Monitor (ACSM), Argo floats, Carbon, Chemical Ionisation Mass Spectrometer (CIMS), Chlorofluorocarbons/Sulfur Hexafluoride/Nitrogen Oxides (CFC SF6 Nox), Condensation Particle Counters (CPC), Cloud Condensation Nuclei counter (CCN), Continuous Plankton Recorder (CPR), Dissolved Inorganic Carbon (DIC), Disdrometer, Infrared Sea Surface Temperature Autonomous Radiometer (ISAR), Micro Rain Radar (MRR), Microwave Radiometer (MWR), Multiangle Absorption Photometer (MAAP), Nephelometer, Nutrient (NOx) autoanalyser, Proton-Transfer-Reaction Mass Spectrometry (PTR-MS), Radiosondes, Scanning Mobility Particle Sizers (SMPS), Sea-ice, Sonic Anemometer. The archive for the IN2018_V01 EOV raw data is curated by the CSIRO Oceans and Atmosphere (O&A) Information and Data Centre (IDC) in Hobart, with a permanent archive at the CSIRO Data Access Portal (DAP, https://data.csiro.au/dap/), providing access to participants and processors of the data collected in the voyage. All voyage documentation is available electronically to MNF support via the local network. Access to voyage documentation for non-CSIRO participants can be made via DataLibrariansOAMNF@csiro.au.

This record describes the End of Voyage (EOV) archive from the Marine National Facility (MNF) RV Investigator research voyage IN2019_V07, titled "RAN Hydrographic and Maritime Heritage Surveys." The voyage took place from Hobart (TAS) to Hobart between April 11 and April 23, 2019 (AEST). For further information refer to the Voyage documentation links below. Instruments used and data collected include: Regular measurements: Acoustic Doppler Current Profiler (ADCP; 75, 150 KHz ), Fisheries echosounder (EK60), Multibeam Echosounder (EM710, EM122), Sub-bottom Profiler (SBP120), Gravimeter, GPS Positioning System, Doppler Velocity Log, Temperature, Humidity, Pressure, Wind and Rain sensors, Photosynthetically Active Radiation (PAR) sensor, Precision Infrared Radiometer (PIR), Precision Spectral Pyranometer (PSP), Nephelometer, pCO2, Condensation Particle Counters (CPC), Cloud Condensation Nuclei counter (CCN), Scanning Mobility Particle Sizers (SMPS), Multiangle Absorption Photometer (MAAP), Starboard and Portside Radiometers, Radon, Ozone and Oxygen sensors, Weather Radar, Greenhouse Gas Analysers (Picarro), Infrared Sea Surface Temperature Autonomous Radiometer (ISAR), Fluorometer, Oxygen optode, Thermosalinographs (TSG), CTD, Hydrochemistry. Voyage-specific measurements: Bird Observations, Triaxus, ECO Triplet, Ultra Short BaseLine Underwater Positioning System (USBL), Brenke Sled, Sediment Grab, Multi-corer, Video. The archive for the IN2019_V07 EOV raw data is curated by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC) in Hobart, with a permanent archive at the CSIRO Data Access Portal (DAP, https://data.csiro.au/dap/), providing access to participants and processors of the data collected in the voyage. All voyage documentation is available electronically to MNF support via the local network. Access to voyage documentation for non-CSIRO participants can be made via NCMI_DataLibrarians@csiro.au.

This record describes the End of Voyage (EOV) archive from the Marine National Facility (MNF) RV Investigator research voyage IN2020_V10, titled "MNF Trials, Storm Bay Modelling and Information System Data Collection, and Bathymetric and Benthic Habitat mapping of the Huon AMP." The voyage took place from Hobart (TAS) to Hobart between November 13 and November 22, 2020 (AEST). For further information please refer to the voyage documentation links below. Instruments used and data collected include: Regular measurements: Acoustic Doppler Current Profiler (ADCP; 75, 150 KHz ), Greenhouse Gas Analysers (Picarro), Cloud Condensation Nuclei counter (CCN), Disdrometer, Radon and Ozone sensors, Scanning Mobility Particle Sizers (SMPS), CTD, Hydrochemistry, Fisheries echosounder (EK80), Multibeam Echosounder (EM710, EM122), Sub-bottom Profiler (SBP120), GPS Positioning System, Doppler Velocity Log, Thermosalinographs (TSG), Fluorometer, Oxygen optode, pCO2, Gravimeter, Multiangle Absorption Photometer (MAAP), Nephelometer, Atmospheric Temperature, Humidity, Pressure, Wind and Rain sensors, Photosynthetically Active Radiation (PAR) sensor, Precision Infrared Radiometer (PIR), Precision Spectral Pyranometer (PSP), Starboard and Portside Radiometers, Ultra Short BaseLine Underwater Positioning System (USBL), Weather Radar, Deep Towed Camera (DTC), Triaxus. The archive for the IN2020_V10 EOV raw data is curated by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC) in Hobart, with a permanent archive at the CSIRO Data Access Portal (DAP, https://data.csiro.au/dap/), providing access to participants and processors of the data collected in the voyage. All voyage documentation is available electronically to MNF support via the local network. Access to voyage documentation for non-CSIRO participants can be made via NCMI_DataLibrarians@csiro.au.

This record describes the End of Voyage (EOV) archive from the Marine National Facility (MNF) RV Investigator Charter Voyage IN2015_C01, titled: "Great Australian Bight (GAB) deep water geological and benthic ecology program". The voyage took place from Hobart (TAS) to Port Lincoln (SA) between October 22 and November 28, 2015. For further information refer to the Voyage documentation links below. Data collected include: Acoustic Doppler Current Profiler ADCP: 75, 150 KHz, CTD, Gravity, Hydrology, Atmospheric data: Absorption Photometer, Nephelometer, Ozone, Radon, Greenhouse data: Aerodyne, Picarro, Underway, pCO2, Echosounders: EK60 (18, 38, 70, 120, 200, 333,KHz), Multibeam: EM122, EM710, and SBP120, XBT, USBL, SMPS (Scanning Mobility Particle Sizer Spectrometer-3936), heat flow probe, magnetometer, Deep Towed Camera (DTC) and video. The archive for the IN2015_C01 EOV raw data is curated by the CSIRO Oceans and Atmosphere (O&A) Information and Data Centre (IDC) in Hobart, with a permanent archive at the CSIRO Data Access Portal (DAP, https://data.csiro.au/dap/), providing access to participants and processors of the data collected in the voyage. All voyage documentation is available electronically to MNF support via the local network. Access to voyage documentation for non-CSIRO participants can be made via DataLibrariansOAMNF@csiro.au.