Dissolved inorganic carbon (DIC), total alkalinity, partial pressure of carbon dioxide (pC

From 1996 to 1998, discrete profile measurements of dissolved inorganic carbon, alkalinity, pCO2, and other hydrographic variables were collected in the Indian Ocean during the R/V Nathaniel B. Palmer cruise WOCE_S04I. The data were collected by researchers from Lamont-Doherty Earth Observatory and the Rosenstiel School as part of the World Ocean Circulation Experiment (WOCE). The final WOCE collection covers approximately 23,000 stations from 94 cruises conducted between 1990 and 1998.

Use Cases

• Modeling ocean carbon uptake and storage based on dissolved inorganic carbon and alkalinity measurements.
• Analyzing ocean circulation and water mass age using chlorofluorocarbon (CFC) and helium tracer data.
• Studying biological productivity and nutrient cycling based on nitrate and dissolved oxygen profiles.
• Calibrating and validating global carbon cycle models using the comprehensive pCO2 and hydrographic data.

Strengths

• Data is part of the major World Ocean Circulation Experiment (WOCE) collection, which covers approximately 23,000 stations.
• Includes multiple related chemical and physical variables per profile, such as carbon parameters, nutrients, and tracers.
• Collected by recognized institutions (Lamont-Doherty Earth Observatory and Rosenstiel School).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count for this specific cruise is unknown, which may limit suitability assessment.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce.

Collection Method

Discrete samples and profile observations collected from a research vessel cruise.

Time Range

1996 to 1998.

Freshness

Last updated 2026-03 05 22:44:44.052835; freshness should be verified.

Geography

Indian Ocean.