RV Investigator Voyage IN2026_T02 Triaxus (undulating CTD) Data
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 IN2026_T02, titled: "CAPSTAN IN2026_T02." The voyage took place between April 23, 2026 and May 05, 2026 (AEST), departing from Fremantle and returning to Hobart.
1 Triaxus tow was conducted for CAPSTAN voyage objectives.
Pressure, conductivity, temperature, and dissolved oxygen data were gathered from duplicate sensors using a Seabird SBE9plus 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) and a Laser Optical Plankton Counter (LOPC).
On each tow, data from legs where the Triaxus was vertically undulating regularly were processed. Data from deployment into the water, turns, and retrieval were also gathered and processed. Typically, only undulation legs and full tows are processed, but as there was only one tow in this voyage, deployment and retrieval legs were also processed. See Appendix A.1 for definitions and example usage of common terms employed here and throughout this report to describe Triaxus tow components and their associated data.
Pressure, conductivity, temperature, and dissolved oxygen sensor data were converted to calibrated units. Spikes and out-of-range values were removed, and primary sensor data were compared to secondary sensor data. PAR, transmissometer and ECO Triplet data were combined into the dataset. LOPC data was gathered but are not processed or published with this report.
Published data have been grouped into 1-decibar bins. Both primary and secondary CTD sensors were reliable, so the final dataset uses the primary CTD sensor values in the default data variables (i.e., variables without “_2” appended).
On this voyage all tows were made up of legs that were sufficiently short to be recorded in single files. As such, a “leg” is the same as a “section” for all tows in this voyage.
The published data consist of:
• along-track time-series data for each leg
• synthetic interpolated vertical casts for each undulation peak and trough of each leg
• interpolated sectional plots of various sensor data taken from along-track time-series data for each leg
The collected data were processed (quality-controlled), and subsequently archived by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC).
Additional information regarding this dataset may be contained in the Voyage Summary and the Data Processing Report.
Simple
Identification info
- Alternate title
-
IN2026_T02 TRIAXUS
- Date
- Credit
-
Triaxus data processed by MNF Data Acquisition and Processing personnel.
- Credit
-
These data were collected on the Marine National Facility (MNF) RV Investigator voyage IN2026_T02.
- 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.
- Status
- Completed
- Point of contact
-
Role Organisation Electronic mail address Custodian CSIRO NCMI - Hobart
- Topic category
-
- Oceans
Extent
))
Temporal extent
- Time position
- 2026-04-23
- Time position
- 2026-05-05
- Maintenance and update frequency
- As needed
- GCMD Keywords
-
- Earth Science | Terrestrial Hydrosphere | Water Quality/Water Chemistry | Light Transmission
- Earth Science | Oceans | Ocean Optics | Turbidity
- Earth Science | Oceans | Ocean Optics | Fluorescence
- Earth Science | Oceans | Ocean Chemistry | Chlorophyll
- Earth Science | Oceans | Ocean Temperature | Water Temperature
- Earth Science | Oceans | Ocean Chemistry | Nitrate
- Earth Science | Oceans | Salinity/Density | Salinity
- Earth Science | Oceans | Ocean Optics | Photosynthetically Active Radiation
- Earth Science | Oceans | Ocean Pressure | Water Pressure
Resource constraints
- Title
-
Attribution 4.0
- Access constraints
- Use constraints
- Other constraints
-
Data are made available under a Creative Commons Attribution 4.0 International Licence, please see link. Data are 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 their 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.
- Language
- English
- Character encoding
- UTF8
- Supplemental Information
-
ATTRIBUTE STATEMENT:
Variables:
time:units = "minutes since 1900-01-01 00:00:00"
woce_date:units="yyyymmdd UTC"
woce_time:units="hhmmss.dd UTC"
latitude:units = "degrees_N"
longitude:units = "degrees_E"
distance:units="km"
pressure:units = "dBar"
waterDepth:units = "meters"
temperature:units = "degrees C"
salinity:units = "PSU"
oxygen:units = "uM"
photosynthetically active radiation:units = "uEinsteins/m^2/s"
transmissometer:units = "%"
chlorophyll:units = ug/L"
obs:units = "m^-1"
cdom:units = "ppb"
pitch:units = "degrees"
roll:units = "degrees"
altimeter:units = "meters"
cableLength:units = "meters"
Distribution Information
- Distribution format
-
-
PDF
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NetCDF
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MATLAB
-
- OnLine resource
-
Processing Report (PDF)
Download the Processing Report (PDF format)
- OnLine resource
-
Data Trawler
Link to Data available for this voyage via the Data Trawler
- OnLine resource
-
Triaxus Data along track (NC)
Download the along-track Triaxus Data (NetCDF format)
- OnLine resource
-
Plots for Processing Report (PNG)
Download plots associated with the Processing Report (PNG format)
- OnLine resource
-
Triaxus Data as vertical casts (NC)
Download vertical-cast Triaxus Data (NetCDF format)
- OnLine resource
-
Investigator Survey
Link to RV Investigator Survey Information, including voyage plans and summaries
- OnLine resource
-
Marine National Facility
Link to the Marine National Facility Homepage
- OnLine resource
-
Triaxus Data along track (MAT)
Download the along-track Triaxus Data (Matlab format)
- OnLine resource
-
Triaxus Data as vertical casts (MAT)
Download vertical-cast Triaxus Data (Matlab format)
Data quality info
- Hierarchy level
- Dataset
Report
Result
- Explanation
-
Completeness and Data Quality: please refer to the Triaxus Processing Report.
Resource lineage
- 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.
- Hierarchy level
- Dataset
Reference System Information
- Reference system identifier
- EPSG/WGS 84 (EPSG:4326)
Metadata
- Metadata identifier
- 7f9f69d6-f2d7-4582-93d5-85755dc192af
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation Electronic mail address Point of contact CSIRO NCMI - Information and Data Centre
Type of resource
- Resource type
- Dataset
- Metadata linkage
-
http://marlin.csiro.au/geonetwork/srv/api/records/7f9f69d6-f2d7-4582-93d5-85755dc192af
- Date info (Creation)
- 2026-09-30T04:28:49.346393Z
- Date info (Creation)
- 2026-04-07T22:34:45.365756Z
- Date info (Creation)
- 2026-02-17T02:49:42.55303Z
- Date info (Revision)
- 2026-09-30T09:42:35.203159Z
Metadata standard
- Title
-
ISO 19115-3:2018
- Title
-
Marine Community Profile
- Date (Creation)
- 2019-05-30
- Edition
-
3.0
- Edition date
- 2019-05-30T00:00:00
- Cited responsible party
-
Role Organisation Electronic mail address Custodian Marine Community Profile Governance Committee
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