Chemical, physical, and profile data collected from the Marion Dufresne research vessel in the Indian Ocean and South Atlantic Ocean between February 1985 and December 1987. The dataset includes measurements of dissolved inorganic carbon, alkalinity, chlorofluorocarbons, nutrients, and temperature. Data were collected by H. Göte Östlund of the Rosenstiel School of Marine and Atmospheric Science during the INDIGO 123 cruise using CTD and bottle instruments.
Use Cases
- Modeling ocean carbon uptake based on dissolved inorganic carbon and alkalinity measurements.
- Studying historical chlorofluorocarbon distributions as ocean tracers.
- Analyzing nutrient cycles (nitrate, phosphate, silicate) in the South Atlantic and Indian Oceans.
- Investigating ocean temperature and salinity profiles for climate studies.
Strengths
- Includes multiple key ocean chemistry variables such as dissolved inorganic carbon, alkalinity, and chlorofluorocarbons.
- Data collected over a multi-year period (1985-1987) from a specific research cruise.
- Profile data likely provides depth-resolved measurements for each variable.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Last updated 1987-12-26; freshness should be verified.
- Row count is unknown, which may limit suitability assessment.
Provenance
- Source
- NOAA NCEI (via NASA Earthdata)
- Collection Method
- Discrete sample and profile observations using CTD and bottle instruments.
- Time Range
- 1985-02-27 to 1987-12-26
- Freshness
- 1987-12-26
- Geography
- Indian Ocean and South Atlantic Ocean