OISO-01: Indian Ocean Carbon and Hydrographic Profiles from 1998

Discrete profile measurements of dissolved inorganic carbon, alkalinity, and related ocean variables collected during a 1998 research cruise. The data were gathered by Claire Lo Monaco and Nicolas Metzl of Sorbonne University as part of the International CLIVAR Global Ocean Carbon and Repeat Hydrography Program. This program systematically re-occupies key ocean sections to quantify changes in heat, freshwater, and carbon dioxide storage.

Use Cases

• Modeling ocean carbon uptake based on dissolved inorganic carbon and total alkalinity measurements.
• Studying ocean acidification trends using the carbonate system parameters.
• Analyzing water mass properties and circulation using temperature, salinity, and oxygen profiles.
• Investigating biological productivity and nutrient cycles using nitrate and silicate data.
• Conducting paleoceanographic proxy calibration studies using delta C13 and delta O18 isotopes.

Strengths

• Includes multiple key ocean carbon cycle variables (DIC, alkalinity, nutrients, isotopes).
• Data collected as part of a systematic global repeat hydrography program (CLIVAR).
• Specific temporal coverage from 1998-01-21 to 1998-02-19.
• Associated with a named research vessel and cruise (R/V Marion Dufresne OISO-01).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is from a single cruise in 1998, limiting temporal scope.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Discrete sample and profile observations from a research vessel cruise.

Time Range

1998-01-21 to 1998-02-19

Freshness

Last updated 2026-03-05 23:07:56.466079; freshness should be verified.

Geography

Indian Ocean