North Pacific Ocean chemical and physical data collected from the Hokusei Maru vessel during a month-long cruise in 1999. The dataset includes measurements of dissolved inorganic carbon, alkalinity, pH, nutrients, salinity, and temperature. These data were collected by Shuichi Watanabe of Hokkaido University as part of the PACIFICA international ocean carbon synthesis project.
Use Cases
- Modeling ocean acidification trends based on pH and dissolved inorganic carbon measurements.
- Analyzing nutrient cycling in marine ecosystems based on ammonium, nitrate, nitrite, phosphate, and silicate data.
- Studying relationships between physical and chemical ocean parameters based on concurrent temperature, salinity, and hydrostatic pressure readings.
- Calibrating biogeochemical models for the Pacific Ocean interior based on the PACIFICA project's synthesized carbon data.
Strengths
- Data includes multiple co-measured chemical and physical parameters, enabling multivariate analysis.
- Collection occurred during a dedicated month-long research cruise, providing a focused temporal snapshot.
- Project was part of the international PACIFICA synthesis effort, suggesting standardized methodologies.
Limitations
- Last updated 1999-08-19; freshness should be verified for contemporary applications.
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment for large-scale modeling.
Provenance
- Source
- NOAA_NCEI (National Centers for Environmental Information)
- Collection Method
- Discrete sample and profile observations using CTD, Coulometer for DIC measurement, and bottle instruments.
- Time Range
- 1999-07-19 to 1999-08-19
- Geography
- North Pacific Ocean