Three research cruises (OISO-1, OISO-2, OISO-3) collected surface underway measurements of partial pressure of carbon dioxide, salinity, temperature, and barometric pressure in the Indian Ocean from January to December 1998. Nicolas Metzl of LOCEAN led the data collection using instruments including a CO2 gas analyzer and barometric pressure sensor. The dataset provides a snapshot of ocean-atmosphere carbon exchange for a specific year.
Use Cases
- Calculate air-sea CO2 flux using partial_pressure_of_carbon_dioxide and barometric_pressure measurements.
- Analyze correlations between ocean temperature and salinity with surface carbon dioxide levels.
- Validate regional ocean carbon models for 1998 using the time-series data from the three distinct cruises.
- Study seasonal variability in Indian Ocean surface carbon chemistry across the January to December observation period.
Strengths
- Data from three dedicated research cruises (OISO-1, OISO-2, OISO-3) provides spatial coverage.
- Includes four key physical and chemical variables (pCO2, salinity, temperature, pressure) for carbon cycle analysis.
- Clear provenance with a named principal investigator (Nicolas Metzl) and research institution (LOCEAN).
Limitations
- Temporal coverage is limited to a single year (1998), preventing long-term trend analysis.
- Sample size and spatial resolution are unknown, limiting statistical power assessments.
- Data is over 25 years old, representing historical conditions that may not reflect current ocean states.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI Accession 0081003), originally from Nicolas Metzl/LOCEAN.
- Collection Method
- Surface underway observations collected from R/V Marion Dufresne using barometric pressure sensors, CO2 gas analyzers, and equilibrators.
- Time Range
- 1998-01-21 to 1998-12-28
- Freshness
- null
- Geography
- Indian Ocean, specific cruise tracks for OISO-1, OISO-2, and OISO-3.