NCEI Accession 0000193 includes dissolved inorganic carbon, alkalinity, pCO2, pH, temperature, salinity, dissolved oxygen, nutrients, and carbon-13 measurements collected from discrete samples and profiles during NOAA Ship Discoverer cruise EQ92_FALL in the Equatorial Pacific Ocean from 1992-09-06 to 1992-12-08. The data were collected by Rik Wanninkhof of NOAA's Atlantic Oceanographic and Meteorological Laboratory and Richard A. Feely of NOAA's Pacific Marine Environmental Laboratory using instruments including alkalinity titrators, CO2 gas analyzers, coulometers, CTDs, and Niskin bottles.
Use Cases
- Modeling ocean carbon uptake and acidification based on dissolved inorganic carbon and alkalinity measurements.
- Analyzing seasonal biogeochemical dynamics in the equatorial Pacific based on nutrient and dissolved oxygen profiles.
- Calibrating satellite-derived ocean carbon estimates based on discrete in-situ pCO2 and pH measurements.
- Studying carbon isotope distributions based on carbon-13 data mentioned in the description.
Strengths
- Data covers a multi-month cruise (1992-09-06 to 1992-12-08) in a key oceanic region.
- Includes multiple co-located carbon system variables (DIC, alkalinity, pCO2, pH) and ancillary measurements (temperature, salinity, nutrients).
- Data provenance is documented with specific principal investigators and NOAA laboratories.
Limitations
- Last updated 1992-12-08 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
- NOAA_NCEI
- Collection Method
- Discrete sample and profile observations using alkalinity titrator, CO2 gas analyzer, coulometer, CTD, Niskin bottles.
- Time Range
- 1992-09-06 to 1992-12-08
- Freshness
- 1992-12-08 00:00:00
- Geography
- Equatorial Pacific Ocean