From August 7 to October 3, 1996, discrete sample and profile data were collected from the HAKUREI MARU in the North Pacific Ocean during cruise NH96-2. The data include dissolved inorganic carbon, alkalinity, pH, salinity, temperature, dissolved oxygen, and nutrients like nitrate and phosphate. These measurements were taken by researchers from Hokkaido University and the National Institute for Resources and Environment as part of the PACIFICA international synthesis project.
Use Cases
- Modeling ocean carbon uptake and storage based on dissolved inorganic carbon and alkalinity measurements.
- Studying ocean acidification trends based on pH and carbonate system parameters.
- Analyzing nutrient distributions and their relationship to biological activity based on nitrate, phosphate, and chlorophyll a data.
- Calibrating biogeochemical models with high-quality, discrete water sample profiles.
Strengths
- Data includes multiple key parameters for ocean carbon cycle studies: dissolved inorganic carbon, alkalinity, pH, and nutrients.
- Data collected during a specific cruise (NH96-2/PACIFICA_49HG19960807) with known researchers and institutions.
- Project was part of an international collaborative synthesis effort (PACIFICA) supported by PICES.
Limitations
- Row count and dataset scale are unknown, which may limit suitability assessment.
- Column-level documentation is absent; field semantics must be inferred after download.
- Data covers a limited temporal window (approximately two months in 1996).
Provenance
- Source
- National Oceanic and Atmospheric Administration, Department of Commerce
- Collection Method
- Data collected from discrete sample and profile observations using CTD, Coulometer for DIC measurement, and bottle.
- Time Range
- 1996-08-07 to 1996-10-03
- Freshness
- Last updated 2026-03-05 23:59:45.083499; freshness should be verified.
- Geography
- North Pacific Ocean