Brief description
This record describes the data (CTD, Dissolved Oxygen, Transmissometer, PAR, ECO Triplet, Nitrate, Fluorescence and LOPC) collected using the towed TRIAXUS platform on Investigator voyage IN2020_V08, titled: "SOLACE - Southern Ocean Large Areal Carbon Export: quantifying carbon sequestration in subpolar and polar waters." The voyage took place between December 4, 2020 and January 15, 2021 departing from Hobart (TAS) and arriving in Hobart.Eight Triaxus tows were undertaken. Tows 1 to 7 were to investigate oceanographic and biological features of interest to the Southern Ocean Large Areal Carbon Export project. The eighth tow was to compare to altimetry satellite data.
Pressure, conductivity, temperature, and dissolved oxygen data were gathered from duplicate sensors using a Seabird SBE9+ CTD. Also carried on the Triaxus hull were a cosine Photosynthetically Active Radiation (PAR) sensor, a transmissometer, an eco-triplet (optical backscatter, CDOM fluorometer and chlorophyll fluorometer), a Laser Optical Plankton Counter (LOPC), and a user-provided Fluorescence Induction and Relaxation (FIRe) system.
On each tow, only data from sections where the Triaxus was undulating regularly were processed. Data from deployment, turns and retrieval were gathered but not further processed.
Pressure, conductivity, temperature, and dissolved oxygen sensor data were converted to calibrated units. Spikes and out-of-range values were removed and primary to secondary sensor data compared. Similarly PAR, transmissometer, and eco-triplet data were combined into the dataset. Both LOPC and FIRe data were gathered but are not processed or published in this report.
Published data have been grouped into 1 decibar bins. Data from the primary sensors were assessed to be more reliable.
On this voyage all tows were made up of sections that were sufficiently short to be recorded in single files.
The published data consist of:
• along-track time-series data for each section
• synthetic interpolated vertical casts data for each undulation peak and trough of each section
• interpolated sectional plots of various taken from along-track time-series data
The collected data were subsequently archived within the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC) in Hobart.
Additional information regarding this dataset may be contained in the Voyage Summary and the Data Processing Report.
Lineage
Maintenance and Update Frequency: asNeeded
Statement: Original field data.
Data processing and quality control by the MNF Data Acquisition and Processing Group (DAP).
Data archived by the CSIRO NCMI Information and Data Centre.
Data processing and quality control by the MNF Data Acquisition and Processing Group (DAP).
Data archived by the CSIRO NCMI Information and Data Centre.
Notes
CreditTriaxus data processed by Richard Atkinson (CSIRO/NCMI)
Credit
These data were collected on the Marine National Facility (MNF) RV Investigator voyage IN2020_V08
These data were collected on the Marine National Facility (MNF) RV Investigator voyage IN2020_V08
Data time period: 2020-12-04 to 2021-01-15
text: westlimit=133.9929; southlimit=-58.0589; eastlimit=148.0268; northlimit=-42.8837; projection=WGS 84 (EPSG:4326)
Subjects
Altimeters |
Chlorophyll |
CTD |
CTDs (Conductivity-Temperature-Depth Profilers) |
Cell Counters |
Coastal Waters (Australia) | Tasmania Coast East and Southeast, TAS |
EARTH SCIENCE |
Fluorescence |
Fluorometers |
Global / Oceans | Southern Ocean |
Light Transmission |
LOPC (Laser Optical Particle Counter) |
MNF Research voyage (ShortNameSuffix _vnn) |
Marine National Facility |
Nitrate |
NOX monitor |
Nephelometers |
OCEAN CHEMISTRY |
OCEAN OPTICS |
OCEAN PRESSURE |
OCEAN TEMPERATURE |
OCEANS |
Photosynthetically Active Radiation |
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 |
Radiation Sensors |
Research Voyage: IN2020_V08 |
Salinity |
SALINITY/DENSITY |
SOLACE - Southern Ocean Large Areal Carbon Export: quantifying carbon sequestration in subpolar and polar waters |
Ship: Investigator (RV) |
TERRESTRIAL HYDROSPHERE |
Turbidity |
Temperature of the water body |
Undulating CTD - Triaxus |
Vessel Data: undulating CTD |
Water Pressure |
WATER QUALITY/WATER CHEMISTRY |
Water Temperature |
oceans |
research vessel |
User Contributed Tags
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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 : f287938a-785e-424b-ba08-6d03d62f730d
