IN2026_V03: Southern Ocean Hydrology and Carbon Samples from RV Investigator Voyage

RV Investigator voyage IN2026_V03 collected hydrology data for the Southern Ocean Time Series (SOTS) southwest of Tasmania. The voyage occurred from May 14 to May 22, 2026, departing from and returning to Hobart. Data includes processed CTD samples for nutrients, oxygen, and salinity, plus carbon and alkalinity samples for shore analysis, archived by CSIRO's NCMI Information and Data Centre.

Use Cases

• Calibrating shipboard underway salinity systems based on continuous Thermosalinograph (TSG) measurements.
• Analyzing nutrient and dissolved oxygen concentrations from CTD samples for water mass characterization.
• Continuing long-term carbon and alkalinity time series studies established on previous voyages.
• Studying seasonal or interannual variability in Southern Ocean hydrochemistry southwest of Tasmania.

Strengths

• Data has been processed and quality-controlled according to the description.
• Samples support a continuing time series for climate and carbon cycle studies.
• Voyage-specific reports (Voyage Report, Data Processing Report) provide additional context.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale modeling.
• Some carbon and alkalinity samples were collected for shore analysis; their results are not immediately included.

Provenance

Source

Marine National Facility (MNF) RV Investigator, archived at CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC).

Collection Method

CTD samples analyzed on-board for nutrients, dissolved oxygen, and salinity; Thermosalinograph (TSG) samples collected continuously.

Time Range

May 14, 2026 to May 22, 2026 (AEST).

Freshness

Last updated 2026-06-27 17:07:04.939869; freshness should be verified.

Geography

Southern Ocean southwest of Tasmania, departing from and returning to Hobart.