PACIFICA: Ocean Carbon and Chemistry Profiles from the North Pacific, June 1998

From 1998-06-01 to 1998-06-15, discrete water samples and profiles were collected from the Hokusei Maru research vessel in the North Pacific Ocean. The data includes dissolved inorganic carbon, alkalinity, pH, salinity, temperature, dissolved oxygen, and nutrients like nitrate and phosphate. It was collected by Shuichi Watanabe of JAMSTEC as part of the international PACIFICA project for synthesizing Pacific Ocean interior carbon data.

Use Cases

• Calibrating ocean carbon cycle models based on dissolved inorganic carbon and alkalinity measurements.
• Studying ocean acidification trends based on pH and carbonate system parameters.
• Analyzing nutrient distributions and their correlation with water masses based on nitrate, phosphate, and silicate data.
• Validating satellite-derived sea surface salinity and temperature products with in-situ CTD profile data.

Strengths

• Data covers a specific 15-day cruise in June 1998, providing a temporal snapshot.
• Includes multiple related chemical and physical parameters (DIC, alkalinity, pH, nutrients, temperature, salinity) for multivariate analysis.
• Collected as part of the international PACIFICA project, suggesting standardized 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, short cruise.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce; collected by Shuichi Watanabe of JAMSTEC.

Collection Method

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

Time Range

1998-06-01 to 1998-06-15

Freshness

Metadata was last updated 2026-03-05 23:34:34.179750.

Geography

North Pacific Ocean