NODC Accession 0115279 includes biological, chemical, and physical data collected from the RYOFU MARU in the North and South Pacific Ocean during September-November 1999. The data were collected by Sukeyoshi Takatani and Masao Ishii as part of the PACIFICA international collaborative project for ocean interior carbon synthesis. Measurements include dissolved inorganic carbon, alkalinity, pH, nutrients, chlorofluorocarbons, and chlorophyll.
Use Cases
- Modeling ocean acidification trends based on pH and dissolved inorganic carbon measurements.
- Analyzing nutrient cycling in the Pacific Ocean based on nitrate, phosphate, and silicate data.
- Studying historical chlorofluorocarbon (CFC) distributions as ocean tracers based on CFC-11 and CFC-12 measurements.
- Investigating phytoplankton biomass based on chlorophyll a and phaeopigment data.
- Calculating carbon system parameters for climate models based on alkalinity and dissolved organic carbon.
Strengths
- Data includes over 20 measured variables relevant to ocean carbon and biogeochemistry.
- Data collection was part of an international collaborative project (PACIFICA) supported by PICES.
- Specific cruise and vessel information (RYOFU MARU, PACIFICA_49RY19990917) is documented.
Limitations
- Last updated 1999-11-09 00:00:00; freshness should be verified.
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
Provenance
- Source
- Japan Meteorological Agency and Meteorological Research Institute; Geochemical Research Department
- Collection Method
- Discrete sample and profile observations using CTD and bottle instruments.
- Time Range
- 1999-09-17 to 1999-11-09
- Geography
- North Pacific Ocean and South Pacific Ocean