52 to 121 discrete measurements of key marine compounds, including dimethylsulphoniopropionate (DMSP), carbon dioxide, and ammonium, were collected per parameter during a 1994 research cruise. Scientists Ba Cuong Nguyen, Michel Frankignouelle, and Marc Elskens conducted these measurements for the JGOFS and OMEX projects. Data collection occurred during the Belgica 9412 cruise from April 20 to May 5, 1994.
Use Cases
- Correlate dimethylsulphoniopropionate (DMSP) concentration with partial pressure of carbon dioxide (pCO2) measurements to study sulfur-carbon cycle interactions.
- Analyze the concentration of ammonium (NH4) against total inorganic carbon (TCO2) to assess nutrient dynamics in the North-East Atlantic.
- Model spatial gradients of pCO2 and TCO2 across the cruise track from +45N to +52N latitude and +1W to +13W longitude.
- Validate satellite-derived ocean carbon models with in-situ pCO2 and TCO2 measurements from 121 discrete sampling points.
Strengths
- Contains 121 concurrent measurements for both pCO2 and TCO2 parameters, enabling paired analysis.
- Spatial coverage is well-defined across a 7-degree latitude and 12-degree longitude range in the North-East Atlantic.
- Temporal coverage is precisely documented for a 16-day period in April-May 1994.
Limitations
- Sample sizes are modest, ranging from 52 to 121 measurements per parameter, limiting statistical power for complex models.
- Data is from a single, short-duration cruise, preventing analysis of seasonal or interannual variability.
- Methodologies vary between parameters (gas chromatography, colorimetric analysis, computation), complicating direct comparability.
Provenance
- Source
- Measurements conducted by scientists Ba Cuong Nguyen, Michel Frankignouelle, and Marc Elskens as part of the Joint Global Ocean Flux Study (JGOFS) and Ocean Margin EXchange (OMEX) projects.
- Collection Method
- Data gathered via ship-based sampling and laboratory analysis including gas chromatography for DMSP, computation from pH and alkalinity for pCO2/TCO2, and manual colorimetric analysis for ammonium.
- Time Range
- 1994-04-20 to 1994-05-05
- Freshness
- null
- Geography
- North-East Atlantic Ocean, from +45N to +52N latitude and +1W to +13W longitude.