Measurements of organic species in air and seawater from the tropical Atlantic

作者: J. Williams , R. Holzinger , V. Gros , X. Xu , E. Atlas

DOI: 10.1029/2004GL020012

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摘要: [1] A West -East crossing of the Tropical Atlantic during Meteor cruise 55 included measurements organic species within atmospheric marine boundary layer and upper ocean. Acetone, methanol, acetonitrile DMS were measured between 10–0°N 35°W–5°E, on either side ITCZ. Methanol acetone concentrations higher in northern hemisphere, both surface seawater atmosphere whereas showed no significant interhemispheric gradient. Three depth profiles from 0–200 m for these measured. generally decreased with sharpest decrease concentration all being found at bottom mixed layer. The average air mixing ratios whole dataset are respectively: 0.53 nmol/mol 17.6 nmol/L; 0.11 6.19 methanol 0.89 118.4 0.05 1.66 nmol/L.

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