South Atlantic Ocean data from the 1992 POLARSTERN cruise includes discrete and profile measurements of dissolved inorganic carbon, alkalinity, pH, nutrients, chlorophyll, and hydrographic variables. The dataset was collected by researchers from the Netherlands Institute for Sea Research, University of East Anglia, and Alfred Wegener Institute as part of the CARINA synthesis project. Observations were made from September 29 to November 30, 1992.
Use Cases
- Calculate ocean acidification parameters like pCO2 or carbonate saturation state using DISSOLVED INORGANIC CARBON (DIC), TOTAL ALKALINITY (TA), pH, SALINITY, and WATER TEMPERATURE.
- Model nutrient limitation for phytoplankton by analyzing correlations between CHLOROPHYLL A, NITRATE, PHOSPHATE, and SILICATE concentrations.
- Study water mass ventilation and mixing by examining vertical profiles of Potential temperature (theta), SALINITY, and DISSOLVED OXYGEN against HYDROSTATIC PRESSURE.
- Investigate the marine carbon pump by comparing DISSOLVED ORGANIC CARBON and PARTICULATE ORGANIC CARBON measurements with nutrient data.
- Validate satellite-derived ocean color products by correlating in-situ FLUORESCENCE and CHLOROPHYLL A measurements.
Strengths
- Includes 19 key biogeochemical and physical variables for carbon system studies, such as DIC, TA, pH, and nutrients.
- Data contributes to the CARINA synthesis project, ensuring internal consistency for Atlantic Ocean carbon investigations.
Limitations
- Temporal coverage is limited to a two-month cruise in 1992, providing a snapshot rather than a time series.
- Geographic scope is confined to the specific cruise track of the POLARSTERN in the South Atlantic Ocean.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI) Accession 0117714, originally from NODC.
- Collection Method
- Discrete sample and profile observations collected using CTD and bottle instruments aboard the RV POLARSTERN.
- Time Range
- 1992-09-29 to 1992-11-30
- Freshness
- null
- Geography
- South Atlantic Ocean along the cruise track of POLARSTERN during cruise 06ANTX_6.