Discrete water column measurements include dissolved inorganic carbon, salinity, dissolved oxygen, nitrate, phosphate, silicate, and hydrostatic pressure. Data were collected by R. Bhushan of the Physical Research Laboratory during two research cruises in the Arabian Sea, Laccadive Sea, and Indian Ocean. Observations span from March 1994 to May 1995.
Use Cases
- Analyze dissolved inorganic carbon (DIC) and salinity relationships to understand carbonate system dynamics.
- Model nitrate and phosphate distributions as indicators of biological productivity and nutrient cycling.
- Correlate potential temperature (theta) and hydrostatic pressure profiles to characterize water mass structure.
- Investigate delta carbon-14 measurements for ocean ventilation and carbon age tracing studies.
- Map silicate concentrations alongside other chemical variables to assess regional biogeochemical processes.
Strengths
- Includes 9 key chemical and physical variables per measurement profile.
- Data collected over a 14-month period across three connected marine regions.
Limitations
- Sample size and spatial resolution are unknown from the provided metadata.
- Data is over 25 years old, limiting analysis of recent oceanographic changes.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI Accession 0117387).
- Collection Method
- Discrete samples and profiles gathered using CTD and bottle instruments aboard the R/V Sagar Sampada.
- Time Range
- 1994-03-01 to 1995-05-03
- Freshness
- null
- Geography
- Arabian Sea, Indian Ocean, Laccadive Sea.