Ocean Carbon and Chemistry Profiles from the Philippine Sea, October 1999

The Philippine Sea is the location for this dataset of discrete water sample and profile observations collected from the SHUMPU MARU research vessel between October 6 and 14, 1999. It includes measurements for dissolved inorganic carbon, pH, alkalinity, nutrients, chlorophyll, CFCs, and physical parameters like temperature and salinity. The data were collected by researchers from the Japan Meteorological Agency and Meteorological Research Institute as part of the PACIFICA international carbon synthesis project.

Use Cases

• Modeling ocean acidification trends based on pH and dissolved inorganic carbon measurements.
• Studying nutrient cycling in ocean ecosystems based on nitrate, phosphate, and silicate data.
• Analyzing water mass age and circulation using Chlorofluorocarbon (CFC-11, CFC-12) tracers.
• Investigating phytoplankton biomass dynamics based on Chlorophyll a and Phaeophytin concentrations.
• Calibrating biogeochemical models with co-located physical parameters like potential temperature and salinity.

Strengths

• Includes over 20 co-located chemical, biological, and physical parameters for each sample/profile.
• Data collected during a dedicated research cruise (PACIFICA_49SU19991006) with documented instruments (CTD, Coulometer).
• Part of an international synthesis project (PACIFICA) supported by PICES, suggesting quality control.

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, short cruise in 1999; temporal and spatial coverage is limited.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce.

Collection Method

Discrete samples and profiles collected using CTD, Coulometer for DIC, and bottle instruments.

Time Range

1999-10-06 to 1999-10-14

Freshness

Last updated 2026-03-05 22:46:07.956517; freshness should be verified.

Geography

Philippine Sea