Discrete profile measurements of dissolved inorganic carbon, alkalinity, pH, and nutrients were collected by NOAA during the R/V Keifu Maru II cruise KS12-06 in the Pacific Ocean. The cruise took place from June to August 2012 along Repeat Sections P12/P09. This dataset provides chemical and physical oceanographic data for a specific research expedition.
Use Cases
- Model ocean acidification trends based on pH and dissolved inorganic carbon measurements.
- Analyze nutrient distributions and their relationship with oxygen levels.
- Study carbon system dynamics using paired DIC and total alkalinity data.
- Validate regional oceanographic models using temperature and salinity profiles.
Strengths
- Includes multiple key ocean carbon system variables (DIC, alkalinity, pH) measured together.
- Data collection occurred during a dedicated research cruise over a two-month period in 2012.
- Profile measurements likely provide vertical resolution of chemical properties.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data may reflect geographic and temporal bias inherent to a single cruise.
Provenance
- Source
- National Oceanic and Atmospheric Administration, Department of Commerce
- Collection Method
- Discrete sample observations collected during a research vessel cruise.
- Time Range
- 2012-06-21 to 2012-08-20
- Freshness
- Last updated 2026-03-05 23:42:10.896776; freshness should be verified.
- Geography
- Pacific Ocean, along Repeat Sections P12/P09