|
||||||
| activités | bourse | liens | membres | contact | ||
date |
Vendredi, 11 novembre 2005 |
lieu |
INRS-ETE
(salle 2417) |
| heure
|
11h00 |
| Chris
Fletcher Atmospheric
Physics Group, Physics Department, University of Toronto
|
|
Can
General Circulation Models (GCMs)
help diagnose snow's role in climate? |
Snow-atmosphere
feedbacks have the potential to affect the atmosphere on timescales
from seasons to centuries, yet our knowledge of the dynamics of snow-atmosphere
interaction remains relatively limited. Reliable large-scale observations
of snow are available only for Northern Hemisphere snow cover since
the beginning of the satellite era. Researchers therefore look to
General Circulation Models (GCMs) to help diagnose how changes in
snow cover can influence the atmosphere. In this talk, the challenge
of representing snow-atmosphere interaction in GCMs is demonstrated.
Results are presented from a validation of snow-atmosphere interaction
in the suite of fully-coupled GCMs employed in the IPCC 4th assessment
report. |
| retour à la liste des conférences |