Chemical Exchange Between the Atmosphere and Polar Snow [Paperback]

Polar ice cores have provided tremendous advances in our knowledge of past climate change. They also contain an archive of geochemical data, which can certainly delineate some of the forcing factors that govern climate change. However, our ability to interpret these data is severely curtailed by lack of knowledge of the processes governing the transfer of chemical species from the air to the snow. This book outlines the potential and problems of ice core chemistry and discusses the processes involved in air-snow transfer. It gives the state of current knowledge and an agenda for future research.Proceedings of the NATO Advanced Research Workshop Processes of Chemical Change Between the Atmosphere and Polar Snow held at Ciocco, Italy, March 19-23, 1995.Polar ice cores have provided tremendous advances in our knowledge of past climate change. They also contain an archive of geochemical data, which can certainly delineate some of the forcing factors that govern climate change. However, our ability to interpret these data is severely curtailed by lack of knowledge of the processes governing the transfer of chemical species from the air to the snow. This book outlines the potential and problems of ice core chemistry and discusses the processes involved in air-snow transfer. It gives the state of current knowledge and an agenda for future research.The record of aerosol deposited species in ice cores, and problems of interpretation.- Acidic gases (HCl, HF, HN03, HCOOH, and CH3COOH): a review of ice core data and some preliminary discussions on their air-snow relationships.- The record of gases and reactive species in ice cores, and problems of interpretation.- Atmospheric transport pathways for the Arctic.- Occurrence and trends of pollution in the Arctic troposphere.- One years continuous aerosol sampling at Summit in central Greenland.- Central Antarctica: Atmospheric chemical composition and atmospheric transport.- Coastal Antarctica: Atmospheric chemical composition lĂL