RV Investigator Voyage IN2026_T02 Hydrology Data

This record describes Hydrology (HYD) data collected from the Marine National Facility (MNF) RV 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.

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.

Identification info

Alternate title: IN2026_T02 HYD

Date

Credit: The data were processed by Merinda McMahon and Julie Janssens (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.

Point of contact

Role	Organisation	Electronic mail address
Custodian	CSIRO NCMI - Information and Data Centre	data-requests-hf@csiro.au data-requests-hf@csiro.au

Role

Organisation

Electronic mail address

Custodian

CSIRO NCMI - Information and Data Centre

data-requests-hf@csiro.au

Topic category

Oceans

Extent

Temporal extent

Time position: 2026-04-23

Time position: 2026-05-05

Maintenance and update frequency: As needed

GCMD Keywords

CSIRO Areas Of Interest

Marine National Facility

CSIRO Equipment

CSIRO Source List

Ship: Investigator (RV)

CSIRO Survey List

Research Transit: IN2026_T02

CSIRO Project List

Investigator National Facility - transit voyage

AODN Geographic Extent Names

Resource constraints

Linkage: Attribution 4.0

License Graphic

Linkage: Attribution 4.0

License Text

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

Distribution Information

Distribution format

PDF
NetCDF
XLS
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: Hydrology Data (NC)

Download the Hydrology Data (NetCDF format)

OnLine resource: Hydrology Data (CSV)

Download the Hydrology Data (CSV format)

OnLine resource: Hydrology Event Logs (CSV)

Download the Hydrology Event Logs (CSV format)

OnLine resource: Underway Data (CSV)

Download the Underway Data (CSV Format)

OnLine resource: TSG Samples Data (CSV)

Download the TSG Samples Data (CSV Format)

OnLine resource: TSG Samples Event Logs (CSV)

Download the TSG Samples Event Logs (CSV Format)

OnLine resource: Processing Report Suppplementary Material (CSV)

Download the supplementary material to the processing report (CSV 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

Data quality info

Hierarchy level: Dataset

Report

Result

Explanation: Salinity and dissolved oxygen data quality are good. Nutrients analysed Silicate (SiO44- as Si), Phosphate (PO43- as P), Nitrate (NO3- as N) plus Nitrite (NO2- as N) referred to as NOx, Nitrite (NO2- as N) and Ammonium (NH4+ as N). Nutrient data quality is good; Japanese KANSO certified reference materials for silicate, phosphate, nitrate and nitrite in seawater (RMNS CU) was included with each analysis run to determine accuracy. QA/QC Nutrient data can be found in the data processing report. All data is GO-SHIP compliant. All data completed. Missing and anomalous data is flagged and noted with explanations in the data processing report (IN2026_T02_HYD_ProcessingReport.pdf).

Resource lineage

Statement

Data source: original field data.

Nutrient samples were analysed using segmented flow SEAL AA500 and results are in unit of 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

If publishing ammonium data, please cite the following:

Rees, C., Janssens, J., Sherrin, K., Hughes, P., Tibben, S., McMahon, M., McDonald, J., Camac, A., Schwanger, C. and Marouchos, A., (2021) “Method for Reproducible Shipboard Segmented Flow Analysis Ammonium Measurement Using an In-House Reference Material for Quality Control.” Frontiers in Marine Science, 8. doi:10.3389/fmars.2021.581901

Salinity samples 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 5.9.

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. Any concentration below the detection limit, including negative values, should be referred to as zero.

Oxygen Data is displayed to 3 decimal places. Salinity data is displayed to 4 decimal places.

Any essential data processing notes and parameters are described in Hydrochemistry data process report (IN2026_T02_HYD_ProcessingReport.pdf).

Hierarchy level: Dataset

Reference System Information

Reference system identifier: EPSG/WGS 84 (EPSG:4326)

Metadata

Metadata identifier: urn:uuid/3c48cbfc-7228-45dc-83d9-d393f1f5fa4e

Language: English

Character encoding: UTF8

Contact

Role	Organisation	Electronic mail address
Point of contact	CSIRO NCMI - Information and Data Centre	data-requests-hf@csiro.au

Type of resource

Resource type: Dataset

Metadata linkage

http://marlin.csiro.au/geonetwork/srv/api/records/3c48cbfc-7228-45dc-83d9-d393f1f5fa4e

Date info (Creation): 2026-07-14T02:43:29.003611Z

Date info (Creation): 2026-06-12T02:36:37.067514Z

Date info (Creation): 2026-06-05T10:31:05.413107Z

Date info (Creation): 2026-03-27T01:54:03.669004Z

Date info (Creation): 2026-02-17T02:49:42.55303Z

Date info (Revision): 2026-07-14T02:43:37.156243Z

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

Overviews

Voyage CTD track

Spatial extent

Provided by

Access to the catalogue

Read here the full details and access to the data.

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