HR: 1340h
AN: A53B-1151    [Abstracts]
TI: Snow – Air Exchange Processes in Alert, Nunavut
AU: * Ariya, P A
EM: parisa.ariya@mcgill.ca
AF: McGill University, Department of Atmospheric and Oceanic Sciences, 805 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
AU: * Ariya, P A
EM: parisa.ariya@mcgill.ca
AF: McGill University Department of Chemistry, 801 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
AU: Kos, G A
EM: gkos@alcor.concordia.ca
AF: McGill University, Department of Atmospheric and Oceanic Sciences, 805 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
AB: The exchange of volatile organic compounds (VOC) between the snow pack and the atmosphere is not very well investigated. Little is known about the contributions of the snow pack to atmospheric processes, how much material is exchanged and what kind of reactions are taking place at the surface that the snow pack provides. In this study we have determined a wide range of VOC with different chemical functionalties (halogenated, aromatic, ketones) and observed their changing concentrations in snow and air over a period of time. With meteorological data collected on site, we would like to investigate potential causes of concentration changes and determine, how atmospheric and snow pack concentrations are linked.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting