North Pacific Ocean Carbon and Chemistry Profiles from Soyo Maru, 1997

Chemical and physical profile data collected from the Soyo Maru research vessel in the North Pacific Ocean from 1997-05-09 to 1997 05-29. The data include dissolved inorganic carbon, alkalinity, dissolved oxygen, nutrients, salinity, and temperature, measured using CTD, Coulometer, and bottle instruments. Katsuyuki Sasaki and Tsuneo Ono of the National Research Institute of Fisheries Science collected this data as part of the PACIFICA international carbon synthesis project.

Use Cases

• Modeling ocean carbon uptake and storage based on dissolved inorganic carbon and alkalinity measurements.
• Analyzing nutrient distributions (nitrate, phosphate, silicate) in relation to water masses in the North Pacific.
• Studying ocean acidification trends using paired carbonate system parameters.
• Calibrating biogeochemical models with high-quality, discrete water sample profiles.

Strengths

• Data includes key carbonate system variables (DIC, alkalinity) essential for acidification studies.
• Profile data from a specific research cruise provides a coherent spatial and temporal snapshot.
• Collection is part of the international PACIFICA project for data synthesis, suggesting standardized methods.

Limitations

• Row count and dataset scale are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data is from a single cruise in 1997, limiting temporal analysis.

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

1997-05-09 to 1997-05-29

Freshness

Last updated 2026-03-05 23:13:24.589667; freshness should be verified.

Geography

North Pacific Ocean