Measurements of organosulfur compounds, halocarbons, and ammonium were collected in the North Sea during the Challenger 49 research cruise from March 29 to April 10, 1989. The dataset includes over 600 individual concentration measurements for substances like dimethylsulphoniopropionate (DMSP), dimethylsulphide (DMS), and various halocarbons. Data were gathered by researchers Sue Turner and David Hydes as part of the North Sea Project.
Use Cases
- Analyze spatial patterns of dimethylsulphoniopropionate (DMSP) concentration across the +51N to +56N latitude range.
- Model correlations between concentrations of different halocarbons like dibromochloromethane and tribromomethane from the 62 measurement points.
- Compare dissolved versus particulate phase dimethylsulphoniopropionate (DMSP) concentrations using the 60 and 66 measurement subsets.
- Investigate the co-variation of dimethylsulphide (DMS) and dimethylsulphoniopropionate (DMSP) concentrations from the 64 DMS and 7 DMS+DMSP measurements.
- Assess the distribution of iodomethane (methyl iodide) concentration across the 50 sampled locations in the water column.
Strengths
- Dataset provides 62 concurrent measurements for 7 different halocarbon species, enabling comparative analysis.
- Clear documentation of analytical methods (gas chromatography, filtration, purging) for each measured compound.
Limitations
- Small sample size for specific compounds, with only 3 measurements for one DMSP phase and 7 for DMS+DMSP.
- Temporally limited to a single two-week cruise in spring 1989, not representative of seasonal cycles.
- Spatial coverage is restricted to a specific region of the North Sea (+51N to +56N, +2W to +7E).
Provenance
- Source
- SCIOPS, collected during the Challenger 49 research cruise for the North Sea Project (NSP).
- Collection Method
- Water column samples analyzed via filtration, purging, cryogenic trapping, and gas chromatography.
- Time Range
- 1989-03-29 to 1989-04-10
- Freshness
- null
- Geography
- North Sea, bounded by +51N to +56N latitude and +2W to +7E longitude.