Atlantic Ocean Organosulfur and Halocarbon Measurements from 1999 Cruise

September–October 1999 measurements of oceanic organosulfur compounds, halocarbons, and alkyl nitrates collected during the AMT9 research cruise in the Atlantic Ocean. The dataset contains over 150 measurements each for dissolved dimethylsulphoniopropionate (DMSP), particulate DMSP, and dimethyl sulfide (DMS) concentrations. Data was collected by researchers Sue Turner and Gill Malin for the SCIOPS organization.

Use Cases

• Analyze correlations between dissolved DMSP concentration and particulate DMSP concentration across the Atlantic transect.
• Model spatial distribution of dimethyl sulfide (DMS) concentration using latitude and longitude coordinates from +49N to +36S and +11W to +51W.
• Investigate temporal trends in halocarbon and alkyl nitrate measurements over the cruise period from September 15 to October 13, 1999.
• Study the relationship between different organosulfur compound measurements (e.g., DMS vs. DMSP) within the same water column samples.

Strengths

• Spatial coverage spans a significant transect from +49N to +36S latitude and +11W to +51W longitude.
• Provides over 150 individual concentration measurements for each of three key organosulfur compounds (dissolved DMSP, particulate DMSP, DMS).
• Clear temporal bounds for data collection from September 15 to October 13, 1999.

Limitations

• Sample size is limited to a single cruise, providing only a temporal snapshot from 1999.
• Row count and total number of measured variables (columns) are unknown, limiting assessment of dataset scope.
• Data is over 20 years old, which may limit its relevance for studying recent oceanic or climatic changes.

Provenance

Source

SCIOPS organization, via NASA Earthdata.

Collection Method

Measurements made from water samples collected during the AMT9 research cruise, using techniques including Millipore prefiltration, gas chromatography, filtration, purging, and cryogenic trapping.

Time Range

1999-09-15 to 1999-10-13

Freshness

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Geography

North and South Atlantic Ocean, from +49N to +36S latitude and +11W to +51W longitude.