58 to 89 discrete water column measurements each for dimethylsulphoniopropionate (DMSP), dimethylsulphide (DMS), and various halocarbons like iodomethane and tetrachloroethene. Data was collected by researchers Sue Turner and David Hydes during the RRS Challenger 47 research cruise from February 27 to March 11, 1989. This dataset captures oceanic concentrations of organosulfur compounds and halocarbons in the North Sea.
Use Cases
- Modeling dimethylsulphide (DMS) concentration distributions from 80 measurements to estimate sea-to-air sulfur flux.
- Analyzing correlations between particulate vs. dissolved DMSP measurements (66 and 58 records respectively) to understand phytoplankton physiology.
- Mapping spatial trends of halocarbons like iodomethane (89 measurements) and tetrachloroethene (86 measurements) across the North Sea study area.
- Comparing concentration levels of dibromochloromethane (76 measurements) and tribromomethane to identify anthropogenic or natural sources.
Strengths
- Provides 58 to 89 discrete concentration measurements for each of 10+ distinct chemical species, enabling multivariate analysis.
- Clear spatial (+51N to +56N, +2W to +8E) and temporal (Feb 27 - Mar 11, 1989) boundaries for the study.
Limitations
- Sample sizes for individual compounds are modest, ranging from 8 to 89 measurements, limiting statistical power for some species.
- Data is from a single two-week cruise in late winter 1989, lacking seasonal or interannual representation.
- Methodological differences in filtration (GF/C phase vs. dissolved phase) create subsets that are not directly comparable.
Provenance
- Source
- SCIOPS, collected by researchers Sue Turner and David Hydes.
- Collection Method
- Ship-based measurements via filtration, purging, cryogenic trapping, and gas chromatography.
- Time Range
- 1989-02-27 to 1989-03-11
- Freshness
- null
- Geography
- North Sea, bounded by +51N to +56N latitude and +2W to +8E longitude.