PACIFICA_49FA20040421 includes biological, chemical, and physical data collected from the KEIFU MARU in the North Pacific Ocean and Philippine Sea from 2004-04-21 to 2004-05-11. The dataset contains measurements for alkalinity, dissolved inorganic carbon, pH, nutrients, chlorophyll, and other variables using CTD and Coulometer instruments. Data were collected by Tetsuya Nakamura of the Japan Meteorological Agency and Masao Ishii of the Meteorological Research Institute as part of the PACIFICA project.
Use Cases
- Modeling ocean carbon sequestration based on dissolved inorganic carbon and alkalinity measurements.
- Analyzing nutrient dynamics in the Pacific Ocean based on nitrate, phosphate, and silicate concentrations.
- Studying phytoplankton biomass based on chlorophyll a and phaeopigment data.
- Investigating ocean acidification trends based on pH and dissolved inorganic carbon profiles.
- Calibrating hydrographic models based on salinity, temperature, and sigma-theta data.
Strengths
- Data covers a specific cruise from April 21 to May 11, 2004, providing a focused temporal snapshot.
- Includes over 20 measured variables, such as dissolved inorganic carbon, pH, nutrients, and chlorophyll.
- Data collection is attributed to specific researchers from the Japan Meteorological Agency and Meteorological Research Institute.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Freshness should be verified; last metadata update was 2026-03-05.
Provenance
- Source
- National Oceanic and Atmospheric Administration, Department of Commerce
- Collection Method
- Data collected from discrete sample and profile observations using CTD, Coulometer for DIC measurement, and bottle.
- Time Range
- 2004-04-21 to 2004-05-11
- Freshness
- Last updated 2026-03-05 22:47:59.250348; freshness should be verified.
- Geography
- North Pacific Ocean and Philippine Sea