PACIFICA: North Pacific Ocean Carbon Chemistry Profiles from 2001

Discrete sample and profile data collected from the Hokusei Maru research vessel in the North Pacific Ocean from June 4 to June 10, 2001. The data include dissolved inorganic carbon, pH, alkalinity, temperature, salinity, and nutrients like nitrate and phosphate. These data were collected by Masahide Wakita of Hokkaido University as part of the PACIFICA international synthesis project.

Use Cases

• Modeling ocean acidification trends based on dissolved inorganic carbon and pH measurements.
• Analyzing nutrient cycling relationships based on nitrate, phosphate, and silicate concentrations.
• Calibrating biogeochemical models using co-located CTD profile data for temperature, salinity, and pressure.
• Studying carbon system parameters like alkalinity and dissolved oxygen for climate change research.

Strengths

• Data includes 12 measured chemical and physical parameters relevant to ocean carbon studies.
• Spatially and temporally focused data collection from a specific research cruise (HO01-1) over 7 days in June 2001.
• Part of the international PACIFICA project, suggesting standardized collection and synthesis protocols.

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 may reflect geographic and temporal bias inherent to a single cruise in the North Pacific.

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 samples.

Time Range

2001-06-04 to 2001-06-10

Freshness

Last updated 2026-03-06 00:26:21.071984; freshness should be verified.

Geography

North Pacific Ocean