PACIFICA: North Pacific Ocean Carbon Chemistry Profiles from 1998

PACIFICA_49HO19980718 includes chemical and physical data from discrete samples and CTD profiles collected during cruise HO98-3 in the North Pacific Ocean from July 18 to August 18, 1998. The data contain measurements for dissolved inorganic carbon, alkalinity, pH, nutrients, and other variables. These data were collected by Shuichi Watanabe of JAMSTEC; Mutsu Institute for Oceanography as part of the PACIFICA international synthesis project.

Use Cases

• Modeling ocean acidification trends based on pH and alkalinity measurements.
• Analyzing nutrient cycling in the North Pacific based on nitrate, phosphate, and silicate data.
• Calibrating ocean carbon models using dissolved inorganic carbon (DIC) and oxygen profiles.
• Studying water mass properties using concurrent temperature, salinity, and pressure data.

Strengths

• Data covers a specific one-month cruise (1998-07 18 to 1998-08-18) in the North Pacific Ocean.
• Includes multiple related chemical and physical parameters (e.g., DIC, alkalinity, pH, nutrients, temperature, salinity).
• Collected as part of the international PACIFICA project for data synthesis.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is from a single cruise in 1998; temporal and spatial coverage is limited.

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

1998-07-18 to 1998-08-18

Freshness

Last updated 2026-03-05 23:03:21.534510; freshness should be verified.

Geography

North Pacific Ocean