Discrete sample and profile data from the POLARSTERN research vessel in the South Atlantic Ocean. The dataset includes measurements of dissolved inorganic carbon, salinity, temperature, dissolved oxygen, and nutrients collected during a 1992-1993 expedition. It was gathered by researchers from the Alfred Wegener Institute as part of the WOCE_SR04_ANTX_7 program.
Use Cases
- Analyze relationships between DISSOLVED INORGANIC CARBON, SALINITY, and WATER TEMPERATURE to study carbon sequestration.
- Model nutrient cycles by examining correlations between NITRATE, PHOSPHATE, and SILICATE concentrations.
- Calculate ocean density and water mass properties using SALINITY, Potential temperature (theta), and HYDROSTATIC PRESSURE profiles.
- Assess ocean ventilation and biological activity by pairing DISSOLVED OXYGEN measurements with nutrient data (NITRATE, PHOSPHATE).
- Investigate ammonium dynamics by analyzing AMMONIUM levels alongside other nitrogen species (NITRITE, NITRATE).
Strengths
- Includes 11 key chemical and physical variables per observation, such as dissolved inorganic carbon and multiple nutrients.
- Data collected during a dedicated scientific cruise (ANTX/7) following systematic WOCE/JGOFS protocols.
- Provides vertical profile data from CTD casts, capturing changes with HYDROSTATIC PRESSURE.
Limitations
- Limited temporal coverage to a single cruise spanning approximately 50 days in 1992-1993.
- Geographic scope is restricted to the specific track of the POLARSTERN in the South Atlantic Ocean.
- Sample size is constrained to the discrete samples and profiles taken during one expedition.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI), originally from Alfred Wegener Institute for Polar and Marine Research.
- Collection Method
- Data collected from discrete water samples and CTD profiles using instruments including a Coulometer for DIC measurement.
- Time Range
- 1992-12-03 to 1993-01-22
- Freshness
- null
- Geography
- South Atlantic Ocean, along the cruise track of the POLARSTERN during voyages ANTX/7 and WOCE_SR04_ANTX_7.