Ice Core Studies of Global Biochemical Cycles

Arctic Aerosols: Composition, Sources and Transport.- Nature and Origin of Antarctic Submicron Aerosols.- Cloud Processes in the Troposphere.- Ocean/Atmosphere Cycling of Dimethylsulfide.- Sulphur-Derived Species in Polar Ice: A Review.- The Contributions of Wet, Fog, and Dry Deposition to the Summer SO4 2? Flux at Summit, Greenland.- Biological Sulfur, Clouds and Climate.- The Chemistry and Climatic Role of Biogenic Sulfur: Group Discussion.- 1250 Years of Global Volcanism as Revealed by Central Greenland Ice Cores.- Nitrate in Polar Ice.- A Preliminary Study of the Air-Snow Relationship for Nitric Acid in Greenland.- Nitric Acid in Firn: Discussion.- Group Meeting on Nitrate Sources in Antarctica and Greenland.- H2O2 and HCHO in Polar Snow and Their Relation to Atmospheric Chemistry.- Photochemical Modeling of Chemical Cycles: Issues Related to the Interpretation of Ice Core Data.- Impact of Biomass Burning on the Atmosphere.- Combustion Carbonaceous Aerosols in the Atmosphere:Implications for Ice Core Studies.- Boreal Biomass Burning Over the Last 80 Years Recorded in a Summit-Greenland Ice Core.- Preliminary Investigations of Post Depositional Effects on HCl, HNO3, and Organic Acids in Polar Firn Layers.- A New Approach to Glaciochemical Time Series Analysis.- Mercury in Ancient Ice and Recent Snow from the Antarctic.- Plutonium from Nagasaki A-Bomb as a Possible Tracer for Global Transport, Using Existing Initial Conditions and Ice Cores.- Current Status of Atmospheric Studies at Summit (Greenland) and Implications for Future Research.