Chemical and physical profile data collected from the Hokusei Maru research vessel in the North Pacific Ocean during June-July 1992. The dataset includes dissolved inorganic carbon, alkalinity, pH, nutrients, and temperature measurements from discrete water samples and CTD profiles. Data were collected by Shuichi Watanabe of Hokkaido University as part of the PACIFICA international synthesis project.
Use Cases
- Modeling ocean carbon uptake and acidification based on dissolved inorganic carbon and alkalinity measurements
- Analyzing nutrient distributions and biogeochemical cycles based on nitrate, phosphate, and silicate data
- Studying the relationship between physical and chemical ocean properties based on concurrent temperature, salinity, and chemical profiles
- Calibrating or validating regional ocean carbon models based on historical in-situ measurements
Strengths
- Includes multiple key carbon cycle parameters (DIC, alkalinity, pH) measured concurrently
- Data collected during a dedicated research cruise (HO92-2) providing spatial context
- Part of the PACIFICA international synthesis project, suggesting standardized methods
Limitations
- Last updated 1992-07-05; freshness should be verified for contemporary research
- 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
- Collection Method
- Discrete sample and profile observations using CTD, Coulometer for DIC measurement, and bottle sampling.
- Time Range
- 1992-06-20 to 1992-07-05
- Geography
- North Pacific Ocean