Sulfur Chemistry in the Marine Atmosphere and Its Influence on Aerosol Formation and Growth
Abstract
Long Term Goals. Our long-term research goal is to understand how aerosols are produced and grow in the marine atmosphere with special emphasis on processes in the boundary and buffer layers. Specifically we want to understand in detail how dimethyl sulfide emitted by the oceans is oxidized in the marine atmosphere and how the products produced are involved in the formation and growth of atmospheric particles. We want to understand the importance of new particles formed in the free troposphere and brought into the boundary and buffer layers by subsidence. Finally we want to determine the influence of anthropogenic sulfur compounds, mainly sulfur dioxide, on the growth and formation of atmospheric particles especially in the near-shore environment. Objective. Our first objective was to develop a comprehensive photochemical model of the chemistry of dimethyl sulfide and its oxidation products. Our second objective was to determine the impact of this chemistry on the formation and growth of new particles in the boundary and buffer layers. A third objective was to evaluate the importance of anthropogenic and volcanic sources of sulfur compounds, particularly SO2, on the formation and growth of atmospheric particles. A final and fourth objective was the evaluation of the importance of new particles formed from oxidized SO2 in the free troposphere that are brought into the boundary and buffer layers by subsidence.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1997
- Accession Number
- ADA619084
Entities
People
- Alan Bandy
- James Ianni
Organizations
- Drexel University