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Detailed Reference Information |
Huebert, B.J., Howell, S., Laj, P., Johnson, J.E., Bates, T.S., Quinn, P.K., Yegorov, V., Clarke, A.D. and Porter, J.N. (1993). Observations of the atmospheric sulfur cycle on SAGA 3. Journal of Geophysical Research 98: doi: 10.1029/93JD02818. issn: 0148-0227. |
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During the Soviet/American Gases and Aerosols (SAGA 3) program in February and March 1991 we measured a wide variety of sulfur compounds simultaneously in the equatorial Pacific marine boundary layer. We made measuremetns of atmospheric dimethyl sulfide (DMS), sulfur dioxide (SO2), and size-resolve aerosol non-sea-salt sulfate (NSS), and methane sulfonate (MSA). Some of our observed ratios contradict commonly held views of the marine sulfur cycle: the large DMS/NSS ratio implies that NSS may not be the primary product of DMS oxidation under some conditions. We also found much more DMS than SO2, which may suggest that SO2 is not always an intermediate in DMS oxidation. The small SO2/NSS ratio also supports the idea that most NSS was not formed from SO2. Although our measured ratios of MSA/NSS were similar to previous observations in this region, much of the MSA was contained on supermicron particles, in contrast to both the NSS and the earlier MSA observations at higher latitudes. This implies that MSA/NSS ratios in ice cores may not accurately reflect the MSA/NSS ratios in their source areas. ¿ American Geophysical Union 1993 |
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Abstract |
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Keywords
Atmospheric Composition and Structure, Aerosols and particles, Atmospheric Composition and Structure, Troposphere—composition and chemistry, Meteorology and Atmospheric Dynamics, Ocean/atmosphere interactions, Meteorology and Atmospheric Dynamics, Climatology |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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