PACIFICA: Ocean Carbon and Chemistry Profiles from the North Pacific, 1999

Chemical and physical oceanographic data collected from the BOSEI MARU NO. 2 research vessel in the North Pacific Ocean from 1999-10-07 to 1999-10-26. The dataset includes discrete measurements of dissolved inorganic carbon, alkalinity, pH, nutrients, and related parameters from the cruise PACIFICA_49EW19991007. Nobuo Tsurushima of the National Institute of Advanced Industrial Science and Technology collected the data 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 and primary productivity based on nitrate, phosphate, and silicate concentrations.
• Studying water mass properties and ocean circulation using CTD-derived temperature, salinity, and pressure profiles.
• Calibrating and validating biogeochemical ocean models with in-situ carbon and alkalinity data.

Strengths

• Includes multiple key carbon cycle parameters (DIC, alkalinity, pH) measured simultaneously.
• Data is associated with the PACIFICA international synthesis project for ocean interior carbon.
• Provides a discrete temporal snapshot from a specific research cruise in October 1999.

Limitations

• Row count and file size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data is from a single, three-week cruise, limiting temporal and spatial generalizability.

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

1999-10-07 to 1999-10-26

Freshness

Last updated 2026-03-05 23:36:22.595410; freshness should be verified.

Geography

North Pacific Ocean