TOPICS IN ATMOSPHERIC AND OCEANIC SCIENCES (TAOS)
Wednesday, March 26, 2014
Endeavour Hall 120
Dr. Paul O’Gorman
Department of Earth, Atmospheric and Planetary Sciences
Massachusetts Institute of Technology
"Contrasting Changes in Mean and Extreme
Snowfall in a Warming Climate"
Snowfall is sensitive to climate change through changes in both air temperature and humidity. Because of the sensitivity to temperature and except in regions with very low surface temperatures, annual-mean snowfall is expected to decrease in a warming climate. However, comprehensive climate models simulate only small fractional changes in daily snowfall extremes for many regions and months of the year with large declines in mean snowfall. An asymptotic theory is introduced for the magnitude of snowfall extremes. The theory is based on the temperature dependencies of the rain-snow transition and precipitation intensity, and it accounts for the main features of the response of snowfall extremes to warming in the simulations.
Gina Gartin, Staff Assistant
School of Marine and Atmospheric Sciences
Stony Brook University
Stony Brook, NY 11794-5000
Phone (631) 632-8009
Fax (631) 632-6251
Please note new email address: Gina.Gartin