North Pacific Ocean and Philippine Sea measurements collected from the RYOFU MARU between April 19 and May 26, 1999. The dataset includes dissolved inorganic carbon, pH, alkalinity, temperature, salinity, nutrients, and chlorofluorocarbons. Data were collected by Kazuhiro Nemoto and Masao Ishii as part of the PACIFICA international collaborative project.
Use Cases
- Modeling ocean carbon uptake based on dissolved inorganic carbon and alkalinity measurements.
- Analyzing historical chlorofluorocarbon (CFC-11, CFC-12) concentrations as ocean tracers.
- Studying nutrient cycles (nitrate, phosphate, silicate) in relation to biological productivity.
- Investigating relationships between physical parameters (temperature, salinity, sigma-theta) and chemical variables.
Strengths
- Includes 22 distinct chemical, biological, and physical variables, providing a multi-faceted view of ocean conditions.
- Data collected over a focused 38-day period in 1999, offering a snapshot of conditions.
- Part of the PACIFICA international synthesis project, suggesting standardized collection methods.
Limitations
- Last updated 1999-05-26; 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
- 1999-04-19 to 1999-05-26
- Geography
- North Pacific Ocean and Philippine Sea