1989 data on carbon dioxide partial pressure (pCO2) and other gas ratios collected from three research ships in the tropical Pacific Ocean. The dataset was gathered by the University of Washington as part of the Hawaii Ocean Time-Series and World Ocean Circulation Experiment projects. Measurements include oxygen/argon ratios, oxygen/nitrogen ratios, and oxygen-18 isotopes at depth versus air.
Use Cases
- Modeling sea-air pCO2 gradients to estimate oceanic carbon uptake in the tropical Pacific.
- Analyzing temporal trends in oxygen/argon and oxygen/nitrogen ratios to study biological productivity.
- Correlating oxygen-18 isotope measurements with water depth to investigate physical and biological mixing processes.
- Validating regional ocean carbon cycle models using in-situ pCO2 measurements from the 1989 WOCE/HOTS campaigns.
Strengths
- Data collected from three distinct research vessels (WECOMA, KILA, MOANA WAVE) for spatial coverage.
- Temporal coverage spans the full calendar year of 1989.
- Peer-reviewed publication (Emerson, Quay, et al., 1991) provides methodological validation.
Limitations
- Data is from a single year (1989), limiting analysis of long-term trends.
- Geographic scope is restricted to the TOGA Area Pacific (30°N to 30°S).
- Unknown sample size and row count prevents assessment of statistical power.
Provenance
- Source
- University of Washington, Seattle, WA; NOAA NCEI (Accession 9500075).
- Collection Method
- Ship-based measurements collected during Hawaii Ocean Time-Series (HOTS) cruises for the World Ocean Circulation Experiment (WOCE).
- Time Range
- 1989-01-01 to 1989-12-31
- Freshness
- null
- Geography
- TOGA Area - Pacific Ocean (30°N to 30°S).