Discrete profile measurements of dissolved inorganic carbon, alkalinity, pH, and other hydrographic variables were collected during a NOAA Ship Ronald H. Brown cruise from 2018-04-23 to 2018-06-06. The cruise reoccupied the I07N section in the western Indian Ocean for the first time since 1995, after a 23-year hiatus due to piracy. The dataset includes measurements of dissolved organic carbon, chlorofluorocarbons, temperature, salinity, oxygen, and nutrients.
Use Cases
- Analyze ocean acidification trends based on dissolved inorganic carbon and pH measurements
- Study long-term changes in ocean chemistry based on the 23-year gap between section reoccupations
- Model carbon sequestration and cycling based on dissolved organic carbon and alkalinity data
- Investigate chlorofluorocarbon distribution as tracers for ocean circulation
- Assess nutrient dynamics and oxygen levels in the western Indian Ocean
Strengths
- Data collection spans a specific time range from 2018-04-23 to 2018-06-06
- Represents the first reoccupation of the I07N section after a 23-year hiatus, providing a unique temporal comparison
- Includes a suite of key oceanographic variables such as DIC, alkalinity, pH, DOC, CFCs, and nutrients
Limitations
- Column-level documentation is absent; field semantics must be inferred after download
- Row count is unknown, which may limit suitability assessment
Provenance
- Source
- National Oceanic and Atmospheric Administration, Department of Commerce
- Collection Method
- Discrete samples and profile observations from a ship-based cruise
- Time Range
- 2018-04-23 to 2018-06-06
- Freshness
- Last updated 2026-03-06 00:11:21.849456; freshness should be verified
- Geography
- Western Indian Ocean along the GO-SHIP I07N section