North Sea Organosulfur and Halocarbon Measurements from 1989 Research Cruise

Measurements of oceanic organosulfur compounds, halocarbons, and ammonium were collected during the Challenger 53 research cruise in the North Sea. The dataset contains over 1000 individual concentration measurements for compounds like dimethylsulphide (DMS) and dibromochloromethane. Data were gathered by researchers Sue Turner and David Hydes for the North Sea Project from May 26 to June 7, 1989.

Use Cases

• Modeling dimethylsulphide (DMS) sea-to-air flux using concentration per unit volume of the water column and spatial coordinates.
• Analyzing correlations between concentrations of different halocarbons like dibromomethane and tribromomethane across the sampled transect.
• Studying the spatial distribution of dimethylsulphoniopropionate (DMSP) in particulate versus dissolved phases from the 95+ measurements for each.
• Investigating temporal trends in iodomethane (methyl iodide) concentration during the two-week cruise period.

Strengths

• Contains over 1000 individual chemical concentration measurements from a controlled research cruise.
• Provides specific spatial coverage from +51N to +56N latitude and +2W to +8E longitude in the North Sea.
• Offers a focused temporal snapshot from a 13-day period in 1989 with precise start and end dates.

Limitations

• Sample size is limited to a single cruise over 13 days, preventing analysis of seasonal or long-term trends.
• Data is over 30 years old, which may not reflect current oceanic conditions.
• Row and column counts for the full structured dataset are unspecified.

Provenance

Source

SCIOPS, collected as part of the North Sea Project (NSP).

Collection Method

Ship-based measurements via filtration, purging, cryogenic trapping, and gas chromatography.

Time Range

1989-05-26 to 1989-06-07

Freshness

Data collection ended on 1989-06-07; no update frequency indicated.

Geography

North Sea, bounded by +51N to +56N latitude and +2W to +8E longitude.