SOLACE: Dissolved and Particulate Calcium Measurements from the Southern Ocean, 2020-2021

Australian Ocean Data Network provides dissolved and particulate calcium measurements from the RV Investigator voyage IN2020_V08. The data were collected in the Australian sector of the Southern Ocean between 4 December 2020 and 15 January 2021. Measurements include calcium concentrations, total alkalinity, and supporting hydrographic and nutrient data to investigate calcium carbonate cycling.

Use Cases

• Modeling calcium carbonate production and dissolution rates based on dissolved calcium and potential alkalinity tracer data.
• Analyzing spatial patterns of carbon export in the Southern Ocean based on particulate calcium measurements.
• Investigating linkages between hydrographic conditions and calcium carbonate cycling using supporting nutrient and hydrographic data.

Strengths

• Data collected during a dedicated research voyage (IN2020_V08) with a clear scientific mission (SOLACE).
• Includes multiple measurement types (dissolved Ca, particulate Ca, total alkalinity, hydrographic, nutrient) for integrated analysis.
• Spatial coverage includes the Southern Ocean Time Series (SOTS) site and two polar bloom sites.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au, focusing on the Australian sector.

Provenance

Source

Australian Ocean Data Network

Collection Method

Samples collected using CTD rosettes and in situ pump systems during the RV Investigator voyage.

Time Range

4 December 2020 to 15 January 2021

Freshness

Last updated 2026-06-27 18:10:20.120625; freshness should be verified.

Geography

Australian sector of the Southern Ocean, including the Southern Ocean Time Series (SOTS) site and two polar bloom sites.