PACIFICA Ocean Carbon Data from KEIFU MARU Cruise in the Pacific Ocean, 2003

A 2003-02-25 to 2003-03 07 cruise collected biological, chemical, and physical profile data from the North Pacific Ocean, Philippine Sea, and South Pacific Ocean. The data include 22 variables such as dissolved inorganic carbon, alkalinity, pH, nutrients, and chlorofluorocarbons. Naoyuki Ishikawa and Masao Ishii collected these data for the PACIFICA project, an international synthesis effort for Pacific Ocean interior carbon.

Use Cases

• Modeling ocean carbon uptake and acidification based on dissolved inorganic carbon and alkalinity measurements.
• Analyzing nutrient cycles and primary productivity based on nitrate, phosphate, silicate, and chlorophyll a data.
• Studying ocean ventilation and water mass age using chlorofluorocarbon (CFC-11, CFC-12) tracers.
• Calibrating and validating ocean biogeochemical models based on the multi-parameter profile data.

Strengths

• Includes 22 distinct chemical, biological, and physical parameters for a multi-faceted analysis.
• Data collected during a dedicated research cruise (PACIFICA_49FA20030225) over a defined 11-day period.
• Project is part of an international collaborative synthesis effort (PACIFICA) supported by PICES.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last updated 2026-03-05 23:24:06.592174; freshness should be verified.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Discrete sample and profile observations using CTD, Coulometer for DIC measurement, and bottle.

Time Range

2003-02-25 to 2003-03-07

Freshness

Last updated 2026-03-05 23:24:06.592174

Geography

North Pacific Ocean, Philippine Sea, South Pacific Ocean