Biogenic sulfur emissions and aerosol over the tropical South Atlantic: 2. One-dimensional simulation of sulfur chemistry in the marine boundary layer

K. Suhre, M. O. Andreae, R. Rosset

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Abstract

Based on experimental data the marine sulfur cycle has been stimulated with one-dimensional coupled meteorological-chemical model. The potential of sea-spray aerosols to act as a sink for SO"SUB 2" produced from dimethylsulfide (DMS) oxidation has been examined by using a simple humidity and height dependent parameterization for sea salt aerosol distribution. Simulations show significant reduction of total SO"SUB 2" concentrations to 27-82% of the values found in the absence of this heterogenous process. The DMS, SO"SUB 2" , H"SUB 2" SO"SUB 4" (sulfates formed by SO"SUB 2" oxidation in the gas phase), and XSO"SUB 4" (sulfates formed by SO"SUB 2" oxidation in sea-spray aerosol) vertical profiles, their diurnal cycles, and turbulent fluxes have been calculated with a one-dimensional model. (from Authors)

Original languageEnglish
Pages (from-to)11+323-11+334
JournalJournal of Geophysical Research
Volume100
Issue numberD6
Publication statusPublished - 1 Jan 1995

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ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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