Brief description
This record describes Hydrology (HYD) data collected from the Marine National Facility (MNF) RV Investigator Voyage IN2021_V02, titled "SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania." The voyage took place between April 14 and April 28, 2021 departing from Hobart (TAS) and arriving in Hobart.Water samples collected during the voyage were assayed in the ship’s hydrochemistry laboratory for nutrients, dissolved oxygen, and salinity. The samples came from deployments of the CTD rosette, underway system, and from experiments run by the science party.
Five nutrients were analysed; silicate, phosphate, nitrate + nitrite, nitrite and ammonium. Certified reference materials for nutrients in seawater were within the specified limits of the certified value.
This dataset has been archived at the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC) in Hobart.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.
Lineage
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.
When using silicate, phosphate, nitrate+nitrite (NOx) and nitrite data set for publication, please cite the paper:
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, 17(1): pp. 25-41. doi:10.1002/Iom3.10294
When using ammonium dataset for publication, please cite the paper:
Rees, C., J.Janssens, K. Sherrin, P. Hughes, S. Tibben, M. McMahon, J. McDonald, A. Camac, C. Schwanger, and A. Marouchos. (2021) “Method for Reproducible Shipboard Segmented Flow Analysis Ammonium Measurement Using an In-House Reference Material for Quality Control.” Front. Mar. Sci., 8: p. 316. doi:10.3389/fmars.2021.581901
Salinities were analysed using Guildline 8400B Autosal Lab Salinometer and OSIL software. The salinometer was calibrated with IAPSO standard seawater P163. 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 onboard 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 (in2021_v02_HYD_ProcessingReport.pdf).
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.
When using silicate, phosphate, nitrate+nitrite (NOx) and nitrite data set for publication, please cite the paper:
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, 17(1): pp. 25-41. doi:10.1002/Iom3.10294
When using ammonium dataset for publication, please cite the paper:
Rees, C., J.Janssens, K. Sherrin, P. Hughes, S. Tibben, M. McMahon, J. McDonald, A. Camac, C. Schwanger, and A. Marouchos. (2021) “Method for Reproducible Shipboard Segmented Flow Analysis Ammonium Measurement Using an In-House Reference Material for Quality Control.” Front. Mar. Sci., 8: p. 316. doi:10.3389/fmars.2021.581901
Salinities were analysed using Guildline 8400B Autosal Lab Salinometer and OSIL software. The salinometer was calibrated with IAPSO standard seawater P163. 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 onboard 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 (in2021_v02_HYD_ProcessingReport.pdf).
Notes
CreditThe data was processed by Stephen Tibben (CSIRO NCMI)
Data time period: 2021-04-14 to 2021-04-28
text: westlimit=140.8445; southlimit=-47.9342; eastlimit=147.5725; northlimit=-42.8842; projection=WGS 84 (EPSG:4326)
Subjects
Ammonia |
CTD |
CTDs (Conductivity-Temperature-Depth Profilers) |
Coastal Waters (Australia) | Tasmania Coast East and Southeast, TAS |
EARTH SCIENCE |
Global / Oceans | Southern Ocean |
MNF Research voyage (ShortNameSuffix _vnn) |
Marine National Facility |
Nitrate |
Nitrite |
Nutrients |
Niskin Bottles |
Nutrient Analysers |
OCEAN CHEMISTRY |
OCEAN TEMPERATURE |
OCEANS |
Oxygen |
Phosphate |
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: IN2021_V02 |
Salinity |
SALINITY/DENSITY |
Silicate |
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 |
Water Temperature |
oceans |
research vessel |
User Contributed Tags
Login to tag this record with meaningful keywords to make it easier to discover
Other Information
Link to Data License / Attribution statements (Data Licensing)
uri :
https://creativecommons.org/licenses/by/4.0/
Link to the Marine National Facility Homepage (Marine National Facility)
uri :
https://mnf.csiro.au/
Identifiers
- global : 09d0c67b-5624-4818-ba05-b1eba3fdd058
