Data

RV Investigator Voyage IN2025_V02 Hydrology Data

Australian Ocean Data Network
CSIRO (Associated with) CSIRO O&A, Information & Data Centre (Point of contact) CSIRO Oceans & Atmosphere - Hobart (Associated with) CSIRO/NCMI (Associated with) Data Officer (AR), Hobart (Processor of)
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://marlin.csiro.au/geonetwork/srv/eng/catalog.search#/metadata/eb348f53-514c-4edd-9e54-61bbcb86ed83&rft.title=RV Investigator Voyage IN2025_V02 Hydrology Data&rft.identifier=cc988416-72af-414d-bf7a-cfee554cda36&rft.publisher=Australian Ocean Data Network&rft.description=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.Maintenance and Update Frequency: asNeededStatement: Data source: original field data. Nutrient samples were analysed using segmented flow SEAL AA3 and results are in µmol/L. In-house methods SOP 001, SOP 002, SOP 003 and SOP 004 were used to analyse nutrients. Please cite the following paper when using Hydrochemistry data for silicate, phosphate, nitrate+nitrite (NOx) and nitrite analysis: Rees, C., L. Pender, K. Sherrin, C. Schwanger, P. Hughes, S. Tibben, A. Marouchos, and M. Rayner. 2018. Methods for reproducible shipboard SFA nutrient measurement using RMNS and automated data processing. Limnol. Oceanogr: Methods Doi:10.1002/Iom3.10294 Salinities were analysed using Guildline 8400B Autosal Lab Salinometer and OSIL software. The salinometer was calibrated with IAPSO standard seawater P168. In-house method SOP 006 was used to analyse salinity, units are Practical Salinity Unit (PSU). Dissolved Oxygens were analysed using Scripps UV titrator and software, units measured in ml/L and converted to µmol/L. Dissolved oxygen was analysed using in-house method SOP 005. All data was processed with HyPro 5.7 on the ship and re-processed on shore with HyPro 5.7. Nutrient data decimal places within the CSV file; silicate is 1 decimal place, nitrite is 3 decimal places and NOx (nitrate + nitrite), phosphate and ammonium is 2 decimal places. Previously values below detection limit were set to zero these values are now displayed as the measured value even if that is a negative value. Oxygen Data is displayed to 3 decimal places. Salinity data is displayed to 4 decimal places, prior to IN2018_T01 voyage it was 3 decimal places in the csv file. Data processing notes are in the processing report (in2025_v02_HYD_ProcessingReport.pdf).&rft.creator=Anonymous&rft.date=2025&rft.coverage=westlimit=141.2984; southlimit=-55.9499; eastlimit=153.9193; northlimit=-42.8862; projection=WGS 84 (EPSG:4326)&rft.coverage=westlimit=141.2984; southlimit=-55.9499; eastlimit=153.9193; northlimit=-42.8862; projection=WGS 84 (EPSG:4326)&rft_rights=Attribution 4.0 https://creativecommons.org/licenses/by/4.0/&rft_rights=&rft_rights=Data is made available under a Creative Commons Attribution 4.0 International Licence, please see link. Data is supplied 'as is' without any warranty or guarantee except as required by law to be given to you. The data may not be free of error, comprehensive, current or appropriate for your particular purpose. You accept all risk and responsibility for its use. ATTRIBUTION STATEMENT: We acknowledge the use of the CSIRO Marine National Facility (https://ror.org/01mae9353) in undertaking this research. The dataset [Insert-dataset-name-here] downloaded on [Insert-DD-Mmm-YYYY-here] was collected on voyage [Insert-voyage-name-here] by the Marine National Facility.&rft_subject=oceans&rft_subject=Earth Science | Oceans | Ocean Chemistry | Phosphate&rft_subject=Earth Science | Oceans | Ocean Chemistry | Nutrients&rft_subject=Earth Science | Oceans | Ocean Temperature | Water Temperature&rft_subject=Earth Science | Oceans | Salinity/Density | Salinity&rft_subject=Earth Science | Oceans | Ocean Chemistry | Oxygen&rft_subject=Earth Science | Oceans | Ocean Chemistry | Ammonia&rft_subject=Earth Science | Oceans | Ocean Chemistry | Nitrate&rft_subject=Earth Science | Oceans | Ocean Chemistry | Nitrite&rft_subject=Earth Science | Oceans | Ocean Chemistry | Silicate&rft_subject=Marine National Facility&rft_subject=Research Voyage: IN2025_V02&rft_subject=Vessel/Station Data: Hydrology&rft_subject=Ship: Investigator (RV)&rft_subject=SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania&rft_subject=Global / Oceans | Southern Ocean&rft_subject=Marine Features (Australia) | Derwent Estuary, TAS&rft_subject=MNF Research voyage (ShortNameSuffix _vnn)&rft_subject=CTDs (Conductivity-Temperature-Depth Profilers)&rft_subject=Nutrient Analysers&rft_subject=Niskin Bottles&rft_subject=Practical salinity of the water body&rft_subject=Temperature of the water body&rft_subject=Pressure (measured variable) in the water body exerted by overlying sea water and any medium above it&rft_subject=Pressure (measured variable) in the water body exerted by overlying sea water only&rft_subject=research vessel&rft_subject=CTD&rft.type=dataset&rft.language=English Access the data
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Data is made available under a Creative Commons Attribution 4.0 International Licence, please see link. Data is supplied 'as is' without any warranty or guarantee except as required by law to be given to you. The data may not be free of error, comprehensive, current or appropriate for your particular purpose. You accept all risk and responsibility for its use. ATTRIBUTION STATEMENT: We acknowledge the use of the CSIRO Marine National Facility (https://ror.org/01mae9353) in undertaking this research. The dataset [Insert-dataset-name-here] downloaded on [Insert-DD-Mmm-YYYY-here] was collected on voyage [Insert-voyage-name-here] by the Marine National Facility.

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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.

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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 SOP 001, SOP 002, SOP 003 and SOP 004 were used to analyse nutrients. Please cite the following paper when using Hydrochemistry data for silicate, phosphate, nitrate+nitrite (NOx) and nitrite analysis: Rees, C., L. Pender, K. Sherrin, C. Schwanger, P. Hughes, S. Tibben, A. Marouchos, and M. Rayner. 2018. Methods for reproducible shipboard SFA nutrient measurement using RMNS and automated data processing. Limnol. Oceanogr: Methods Doi:10.1002/Iom3.10294 Salinities were analysed using Guildline 8400B Autosal Lab Salinometer and OSIL software. The salinometer was calibrated with IAPSO standard seawater P168. In-house method SOP 006 was used to analyse salinity, units are Practical Salinity Unit (PSU). Dissolved Oxygens were analysed using Scripps UV titrator and software, units measured in ml/L and converted to µmol/L. Dissolved oxygen was analysed using in-house method SOP 005. All data was processed with HyPro 5.7 on the ship and re-processed on shore with HyPro 5.7. Nutrient data decimal places within the CSV file; silicate is 1 decimal place, nitrite is 3 decimal places and NOx (nitrate + nitrite), phosphate and ammonium is 2 decimal places. Previously values below detection limit were set to zero these values are now displayed as the measured value even if that is a negative value. Oxygen Data is displayed to 3 decimal places. Salinity data is displayed to 4 decimal places, prior to IN2018_T01 voyage it was 3 decimal places in the csv file. Data processing notes are in the processing report (in2025_v02_HYD_ProcessingReport.pdf).

Notes

Credit
The data were processed by Dawn Herweynen and Narendra Pati (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 outputs with the statement: “We acknowledge the use of the CSIRO Marine National Facility (https://ror.org/01mae9353 ) in undertaking this research.” Acknowledgment and citations should be in all forms of publication including presentations (where the acknowledgement should be on the closing slide), journals, books, reports and related research outputs.

Data time period: 2025-03-26 to 2025-04-14

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153.9193,-42.8862 153.9193,-55.9499 141.2984,-55.9499 141.2984,-42.8862 153.9193,-42.8862

147.60885,-49.41805

text: westlimit=141.2984; southlimit=-55.9499; eastlimit=153.9193; northlimit=-42.8862; projection=WGS 84 (EPSG:4326)

Subjects
CTD | CTDs (Conductivity-Temperature-Depth Profilers) | Earth Science | Oceans | Ocean Chemistry | Ammonia | Earth Science | Oceans | Ocean Chemistry | Nitrate | Earth Science | Oceans | Ocean Chemistry | Nitrite | Earth Science | Oceans | Ocean Chemistry | Nutrients | Earth Science | Oceans | Ocean Chemistry | Oxygen | Earth Science | Oceans | Ocean Chemistry | Phosphate | Earth Science | Oceans | Ocean Chemistry | Silicate | Earth Science | Oceans | Ocean Temperature | Water Temperature | Earth Science | Oceans | Salinity/Density | Salinity | Global / Oceans | Southern Ocean | MNF Research voyage (ShortNameSuffix _vnn) | Marine Features (Australia) | Derwent Estuary, TAS | Marine National Facility | Niskin Bottles | Nutrient Analysers | Practical salinity 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 Voyage: IN2025_V02 | SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania | Ship: Investigator (RV) | Temperature of the water body | Vessel/Station Data: Hydrology | oceans | research vessel |

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Other Information
Download the Processing Report (PDF format) (Processing Report (PDF))

url : https://www.marine.csiro.au/data/reporting/get_file.cfm?eov_pub_id=3668

Link to Data available for this voyage via the Data Trawler (Data Trawler)

url : http://www.marine.csiro.au/data/trawler/dataset.cfm?survey=IN2025_V02&data_type=hydro

Download the Hydrology Data (NetCDF format) (Hydrology Data (NC))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5648

Download the Hydrology Data (CSV format) (Hydrology Data (CSV))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5647

Download the Hydrology Event Logs (CSV format) (Hydrology Event Logs (CSV))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5649

Download the Underway Data (CSV Format) (Underway Data (CSV))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5651

Download the TSG Data (CSV Format) (TSG Data (CSV))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5650

Download the TSG Samples Event Logs (CSV Format) (TSG Samples Event Logs (CSV))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5646

Link to RV Investigator Survey Information, including voyage plans and summaries (Investigator Survey)

url : https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2025_V02

Link to the Marine National Facility Homepage (Marine National Facility)

url : https://mnf.csiro.au/

Identifiers
  • global : cc988416-72af-414d-bf7a-cfee554cda36