PACIFICA Project: Ocean Carbon and Chemistry Profiles from the North Pacific, 2005

From April 19 to May 9, 2005, this dataset contains discrete sample and profile observations of dissolved inorganic carbon, pH, alkalinity, and related chemical and physical variables collected from the KEIFU MARU research vessel in the North Pacific Ocean and Philippine Sea. The data were collected using CTD, Coulometer, and bottle instruments during cruise PACIFICA_49FA20050419 by researchers from the Japan Meteorological Agency and Meteorological Research Institute. It was compiled as part of the PACIFICA international project for synthesizing Pacific Ocean interior carbon data.

Use Cases

• Modeling ocean acidification trends based on dissolved inorganic carbon and pH measurements.
• Studying marine nutrient cycles based on nitrate, phosphate, and silicate concentrations.
• Analyzing water mass properties and circulation based on salinity, temperature, and chlorofluorocarbon (CFC) tracers.
• Investigating biological productivity based on chlorophyll a and dissolved organic carbon levels.

Strengths

• Includes over 20 distinct chemical, biological, and physical parameters for a holistic view of ocean conditions.
• Data collected during a dedicated research cruise (PACIFICA_49FA20050419) with documented instruments (CTD, Coulometer).
• Part of an international collaborative synthesis project (PACIFICA) supported by PICES.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• The temporal coverage is limited to a three-week period in 2005.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Discrete sample and profile observations collected from a research vessel using CTD, Coulometer, and bottle instruments.

Time Range

2005-04-19 to 2005-05-09

Freshness

Last updated 2026-03-05 23:13:15.242345; freshness should be verified.

Geography

North Pacific Ocean and Philippine Sea