applied math seminar
Deborah Sulsky, Department of Mathematics and Statistics, UNM
Monday, February 18, 2019 -
3:30pm to 4:30pm
Title: The Mechanics of Sea Ice
Abstract: Sea ice is both an indicator and accelerator of climate change. The diminishing ice extent and the thinning of Arctic ice are evidence of a warming climate. Moreover, as ice disappears, more solar radiation is absorbed into the oceans, further warming the Earth. Modeling and numerical simulation have played a role in understanding these processes.
This talk will describe a constitutive model for sea ice that accounts for fractures that occur as the ice is put in motion by winds and ocean currents. Although cracks exist in only 1-2% of the surface area of the ice cover, about half the heat exchange between the atmosphere and ocean occurs in these fractures. Models of the interplay between mechanics and thermodynamics will also be described.
Contact Name: Pavel Lushnikov