Atlantic Ocean Organosulfur Measurements from 1997 AMT5 Cruise

Peter Liss collected 678 measurements of oceanic organosulfur compounds during the AMT5 research cruise from September 14 to October 17, 1997. The dataset includes 228 dimethylsulphide (DMS) concentration measurements and 450 dimethylsulphoniopropionate (DMSP) concentration measurements, split into dissolved and particulate forms. The cruise transected the Atlantic Ocean from the UK to the Falkland Islands.

Use Cases

• Modeling DMS sea-to-air flux using concentration measurements and the recorded latitude/longitude positions.
• Analyzing the relationship between dissolved DMSP and particulate DMSP concentrations across the Atlantic transect.
• Studying spatial gradients of organosulfur compounds by correlating measurement values with the provided geographic coordinates (+49N to +50S, +8W to +58W).
• Comparing DMS concentration data from the 1997 AMT5 cruise with more recent measurements to assess temporal changes.

Strengths

• Precise measurement counts: 228 DMS and 450 DMSP (225 dissolved, 225 particulate) samples.
• Clear spatial coverage defined by latitude (+49N to +50S) and longitude (+8W to +58W).
• Explicit temporal coverage from September 14 to October 17, 1997.

Limitations

• Small sample size of 678 total measurements for basin-scale analysis.
• Data is from a single cruise in 1997, limiting temporal representativeness.
• Specific measurement techniques (e.g., gas chromatography) may introduce methodological biases not detailed.

Provenance

Source

Peter Liss, collected as part of the Atlantic Meridional Transect (AMT) programme.

Collection Method

Measurements made via Millipore prefiltration and gas chromatography for DMSP, and filtration, purging, cryogenic trapping, and gas chromatography for DMS.

Time Range

1997-09-14 to 1997-10-17

Freshness

1997-10-17

Geography

North and South Atlantic Ocean, from +49N to +50S latitude and +8W to +58W longitude.