CLIVAR I05 2002: Indian Ocean Carbon and Hydrographic Profiles

Discrete profile measurements of dissolved inorganic carbon, total alkalinity, pH, temperature, salinity, dissolved oxygen, nutrients, and chlorofluorocarbons were collected during the R/V Charles Darwin cruise CD139 in the Indian Ocean from March 1 to April 15, 2002. The data were collected by researchers from the Institute of Marine Research Vigo, Spanish Institute of Oceanography, and Woods Hole Oceanographic Institution as part of the CLIVAR Global Ocean Carbon and Repeat Hydrography Program. This program systematically re-occupies select hydrographic sections to quantify changes in heat, freshwater, and carbon dioxide storage and transport.

Use Cases

• Modeling ocean carbon uptake and acidification based on dissolved inorganic carbon and pH measurements.
• Analyzing water mass age and ventilation based on chlorofluorocarbon (CFC) and tritium/helium tracer data.
• Studying biogeochemical cycles based on nutrient and dissolved oxygen profiles.
• Calibrating and validating ocean circulation models based on temperature and salinity profiles.

Strengths

• Includes multiple co-located chemical and physical parameters (DIC, alkalinity, pH, CFCs, nutrients, temperature, salinity).
• Data collection is part of a systematic global repeat hydrography program (CLIVAR).
• Specific cruise (CD139), EXPOCODE (74AB20020301), and collection dates (2002-03-01 to 2002-04-15) are documented.

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 2002, limiting temporal and spatial generalizability.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Discrete sample and profile observations from research vessel.

Time Range

2002-03-01 to 2002-04-15

Freshness

Last updated 2026-03-05 23:23:58.974325; freshness should be verified.

Geography

Indian Ocean