PACIFICA: Ocean Carbon and Chemistry Profiles from the Philippine Sea, August 1998

PACIFICA_49SU19980819 includes biological, chemical, and physical profile data collected from the SHUMPU MARU in the Philippine Sea from 1998-08-19 to 1998-08-27. These data include dissolved inorganic carbon, pH, alkalinity, nutrients, chlorophyll, and CFCs, collected using CTD, Coulometer, and bottle instruments. The data were collected by Tatsuo Nakamura and Masao Ishii as part of the PACIFICA international project for synthesizing Pacific Ocean interior carbon data.

Use Cases

• Modeling ocean acidification impacts based on pH and dissolved inorganic carbon measurements.
• Analyzing nutrient cycling and primary productivity based on nitrate, phosphate, silicate, and chlorophyll a data.
• Studying water mass age and circulation using Chlorofluorocarbon (CFC-11, CFC-12) tracer data.
• Investigating carbon isotope fractionation based on delta carbon-13 measurements.

Strengths

• Includes over 20 distinct chemical, biological, and physical parameters for a comprehensive water column profile.
• Data collected during a dedicated research cruise (PACIFICA_49SU19980819) with standardized instruments like CTD and Coulometer.
• Part of the international PACIFICA project, suggesting adherence to a coordinated data synthesis protocol.

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 August 1998, 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 instruments.

Time Range

1998-08 19 to 1998-08-27

Freshness

Last updated 2026-03-05 23:26:38.894384; freshness should be verified.

Geography

Philippine Sea