The Philippine Sea is the geographic scope for this dataset of discrete water samples and profiles collected from the SHUMPU MARU between July 9 and 17, 1998. It includes measurements for dissolved inorganic carbon, pH, alkalinity, temperature, salinity, nutrients, and chlorofluorocarbons. These data were collected by researchers from the Japan Meteorological Agency and Meteorological Research Institute as part of the PACIFICA ocean carbon synthesis project.
Use Cases
- Modeling ocean carbon uptake and acidification based on dissolved inorganic carbon and pH measurements.
- Analyzing nutrient cycles and primary productivity based on nitrate, phosphate, silicate, and chlorophyll a data.
- Studying ocean ventilation and water mass age using chlorofluorocarbon (CFC-11, CFC-12) tracers.
- Calibrating satellite-derived ocean color products with in-situ chlorophyll a and phaeophytin measurements.
Strengths
- Includes over 20 measured variables covering carbon chemistry, nutrients, and physical oceanography.
- Data were collected as part of the international PACIFICA project for Pacific Ocean carbon synthesis.
- Specific collection dates (1998-07-09 to 1998-07-17) and vessel (SHUMPU MARU) are documented.
Limitations
- Last updated 1998-07-17 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
- NOAA_NCEI (NODC Accession 0112303), via nasa_earthdata platform.
- Collection Method
- Discrete sample and profile observations using CTD, Coulometer for DIC measurement, and bottle.
- Time Range
- 1998-07-09 to 1998-07-17
- Freshness
- 1998-07-17 00:00:00
- Geography
- Philippine Sea