NODC Accession 0112231 includes biological, chemical, and physical data collected from the HAKUREI MARU in the North Pacific Ocean from August to October 1995. The data were collected during cruise NH95-2 and PACIFICA_49HG19950807 by Yutaka W. Watanabe and Koh Harada of the National Institute for Resources and Environment. These observations include dissolved inorganic carbon, alkalinity, pH, salinity, temperature, nutrients, and chlorophyll a.
Use Cases
- Modeling ocean carbon uptake and acidification based on dissolved inorganic carbon and alkalinity measurements.
- Analyzing nutrient-phytoplankton relationships in the North Pacific based on nitrate, phosphate, silicate, and chlorophyll a data.
- Studying physical-chemical coupling in the ocean using concurrent temperature, salinity, pressure, and dissolved oxygen profiles.
- Calibrating or validating regional carbon cycle models using in-situ carbon and pH data from a specific time period.
Strengths
- Data covers a specific research cruise from 1995-08-07 to 1995-10-05, providing a focused temporal snapshot.
- Includes multiple related chemical and physical parameters (e.g., DIC, alkalinity, pH, nutrients, temperature, salinity) for integrated analysis.
- Data were collected as part of the international PACIFICA project, suggesting a standardized synthesis effort.
Limitations
- Last updated 1995-10-05 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
- National Institute for Resources and Environment; data retrieved via NOAA NCEI.
- Collection Method
- Discrete sample and profile observations using CTD, Coulometer for DIC measurement, and bottle.
- Time Range
- 1995-08-07 to 1995-10-05
- Geography
- North Pacific Ocean