Title
The
role
of
terrestrial
snow
in
climate
variability
and
change:
insights
from
models
and
observations
Speaker
Chris
Fletcher,
Associate
Professor
Geography
&
Environmental Management,
University
of Waterloo
Abstract
Snow covers about 50 million km^2 (roughly 10%) of Earth's surface during northern winter. The high albedo of snow relative to snow-free ground has profound implications for the surface energy budget. The terrestrial snowpack also provides a major storage term that controls the seasonal cycle, and long-term trends, in the surface water budget. Anthropogenic warming of the climate system is expected to cause dramatic reductions in the extent, and amount, of terrestrial snow during the 21st century. In this talk, I will review progress over the past decade toward understanding the role of snow in climate variability and change. Specifically, I will focus on our investigations into the snow albedo feedback mechanism through a number of projects using available observational data, and new and existing archives of simulations using earth system models. Many of these projects have been conducted with support from the Canadian Sea Ice and Snow Evolution (CanSISE) network, and if time permits I will describe some of the major contributions emerging from CanSISE. I will conclude with a discussion of ongoing research in this area, and some of the remaining challenges to be addressed.
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Webex
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Meeting
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Topic:
CRD
Seminar
Date:
Thursday,
May
17,
2018
Time:
2:00
pm,
Eastern
Daylight
Time
(New
York,
GMT-04:00)
Meeting
Number:
551
437
880
Meeting
Password:
3Qm9C2xp
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