December 1998 data from the R/V Marion Dufresne cruise OISO-03 in the Indian Ocean includes discrete profile measurements of dissolved inorganic carbon, total alkalinity, temperature, salinity, dissolved oxygen, and nutrients. The data were collected by researchers from Universite Pierre et Marie Curie as part of the CLIVAR and Global Ocean Carbon and Repeat Hydrography Program.
Use Cases
- Calculate ocean acidification metrics like aragonite saturation state using dissolved_inorganic_carbon and total_alkalinity measurements.
- Analyze relationships between carbon parameters and physical oceanography by correlating dissolved_inorganic_carbon with temperature and salinity profiles.
- Validate regional ocean carbon models by comparing simulated dissolved_oxygen and nutrient levels against these in-situ cruise observations.
- Study carbon transport by examining the vertical structure of dissolved_inorganic_carbon across different hydrographic stations.
Strengths
- Data collected during a dedicated scientific cruise following CLIVAR and WOCE/JGOFS protocols for high-quality measurements.
- Includes multiple co-located variables (carbon chemistry, physical, nutrients) enabling multivariate analysis.
- Temporal coverage is precisely defined for a 23-day period from 1998-12-05 to 1998-12-27.
Limitations
- Sample size is limited to a single cruise in December 1998, providing only a seasonal snapshot.
- Geographic coverage is restricted to the specific track of the OISO-03 cruise in the Indian Ocean.
- Data is over 25 years old, limiting analysis of recent ocean change.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI) Accession 0113574.
- Collection Method
- Discrete sample and profile observations collected from the R/V Marion Dufresne.
- Time Range
- 1998-12-05 to 1998-12-27
- Freshness
- Data collection ended on 1998-12-27; no update frequency.
- Geography
- Indian Ocean along the cruise track of EXPOCODE 35MF19981205.