Session Announcement and Call for Abstracts
Snow/Ice Chemistry: Impacts on Atmospheric and Hydrologic Systems
American Geophysical Union (AGU) Fall Meeting
15-19 December 2008
San Francisco, California
Abstract Submission Deadline: 10 September 2008
For further information, please go to:
http://www.agu.org/meetings/fm08/?content=search&show=detail&sessid=473
Or contact:
Amanda Grannas
Email: amanda.grannas [at] villanova.edu
Papers are invited for Session C21: "Snow/Ice Chemistry: Impacts on
Atmospheric and Hydrologic Systems" being convened at the AGU Fall
Meeting on 15-19 December 2008 in San Francisco, California. This
session is sponsored by the Cryosphere section and co-sponsored by the
Atmospheric Sciences section.
Session Description:
Lower atmospheric chemical species including contaminants, halogens, and
nitrogen oxides exchange with snow and ice surfaces throughout the Polar
winter. Many of the reactions influencing the deposition and fate of
these species in the cryosphere are photochemical. Some species, like
most trace metals, black carbon and sea salts, largely remain in the
snow pack through the melt season and become part of surface runoff.
However mercury and some organochlorine and bioaccumulative pollutants
may undergo multiple episodes of deposition to and re-emission from the
snow pack during the late winter and spring. Significant effort has been
expended in field, laboratory and modeling studies, but the field of
snow/ice/atmospheric interactions is still in its relative infancy. The
fundamental photochemical mechanisms at play and the broader impacts of
snow and ice chemistry on atmospheric and hydrologic cycles are only now
being elucidated. This session will focus on the fate of atmospheric
chemical compounds during and following snow melt. This includes
watershed studies, surface water, snow pack runoff and long term records
of chemical compounds in snow, ice, lake and tundra cores. Submissions
from field, laboratory and modeling studies that can provide additional
insight into the specific mechanisms responsible for snow/ice chemistry;
the impact of such chemistry on local and/or regional atmospheric and
hydrologic processes; and the incorporation of snow/ice chemistry into
regional and global models are encouraged.
For abstract submission procedures and instructions, please go to:
http://www.agu.org/meetings/fm08/?content=program
For session information, please go to:
http://www.agu.org/meetings/fm08/?content=search&show=detail&sessid=473
Or contact:
Amanda Grannas
Email: amanda.grannas [at] villanova.edu