North Pacific Ocean and Philippine Sea data collected from the KEIFU MARU vessel between April 22 and May 12, 2008. The dataset includes discrete sample and profile measurements of dissolved inorganic carbon, pH, alkalinity, temperature, salinity, nutrients, and chlorofluorocarbons. Takahiro Segawa of Kobe Marine Observatory and Masao Ishii of Meteorological Research Institute collected these data as part of the PACIFICA project.
Use Cases
- Modeling ocean carbon uptake and acidification based on dissolved inorganic carbon and pH measurements.
- Analyzing nutrient dynamics in marine ecosystems based on nitrate, phosphate, and silicate concentrations.
- Studying chlorofluorocarbon (CFC) distribution as ocean tracers based on CFC-11 and CFC-12 data.
- Investigating phytoplankton biomass and productivity based on chlorophyll a and phaeophytin measurements.
- Calculating water column properties and density based on temperature, salinity, and hydrostatic pressure profiles.
Strengths
- Includes over 20 distinct chemical, biological, and physical variables, such as alkalinity, ammonium, and dissolved organic carbon.
- Data collected during a specific cruise (PACIFICA_49FA20080422) with documented instruments (CTD, Coulometer, bottle).
- Project supported by an international collaboration (PACIFICA) and the North Pacific Marine Science Organization (PICES).
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Last updated 2026-03-05 22:36:41.163832; freshness should be verified.
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
- 2008-04-22 to 2008-05-12
- Geography
- North Pacific Ocean and Philippine Sea