Untitled Document

mise à jour : 1 novembre 2006

NOVEMBRE 2006

Félicitations aux 14 gagnants de la compétion de recherche de premier cycle 2006. cliquez ici

Lecture du mois
Lundi, le 27 novembre 2006
Université McGill, Otto Maass Chimie
salle 10

Dr. Ronald Stewart
Our Winter Storms:
The Science Of Their Precipitation

Lecture publique: 18h00
______________________________
Réunion du conseil: 16h30
pièce Ruttan
______________________________
Réunion des membres: 17h30
pièce Ruttan

OCTOBRE 2006

Notre Chapître McGill-Montréal a reçu un
Certificat de Reconnaissance de Sigma Xi pour l'année fiscale 2006

Lundi, le 23 Octobre 2006
Université McGill, Otto Maass Chimie
salle 217

Dr. Hans Larsson
Hunting Dinosaurs and other fossils
in the Canadian High Arctic:
what ancient climate
change may tell us

Lecture publique: 18h00
______________________________
Réunion du conseil: 16h30
pièce Ruttan
______________________________
Réunion des membres: 17h30
pièce Ruttan

SEPTEMBRE 2006

Vous êtes cordialement invités:
Deuxième lecture d'Entin

Lundi, le 25 septembre 2006
Otto Maass Chimie
pièce Ruttan

Dr. David colman
Evolution, Structure and
Assembly of the Myelin Sheath

Lecture publique: 18h00
______________________________
Réunion du conseil: 16h30
pièce: à déterminer
Réunion des membres: 17h30
pièce Ruttan

ÉTÉ 2006
Le chapître McGill-Montréal a un
nouveau co-président:
Dr. Juan Vera
Professeur Emeritus, Génie Chimique

Nous avons aussi deux nouveau secrétaires :
Mr. Thomas D. Lazzara
Ms. An Thien Ngo

Photos et informations concernant notre troisième remise de prix Sigma Xi "Excellence en Recherche de Premier Cycle"
sont disponibes : Cliquez ici.

Vous pouvez également visionnez les photos de notre voyage au Musé McCord au mois d'avril 2006 : Cliquez ici.

Novembre 2006

Notre invité du mois:
lundi, le 27 novembre 2006, 18h00
Université McGill,
Otto Maass Chimie, salle 10

Dr. Ronald Stewart

lOur Winter Storms:
The Science Of Their Precipitation

télécharchez: PDF POSTER

Winter storms are a common feature of
our Canadian climate. Remember The
Ice Storm? Even though we are all familiar with these storms, there are still many scientific questions associated with them. Many of these issues, such as storm impacts, are linked with precipitation that can fall as a single type (including snow, rain, freezing rain, wet snow, slush, and snow pellets) or a combination of these types. To address this winter precipitation, one needs to understand its detailed nature and the factors controlling its spatial and temporal distribution. This means that one has to consider, for example, the physical processes governing the nucleation of precipitation in the atmosphere; the growth of the resultant particles; their potential phase changes including heat and moisture exchanges with the environment; the storm structure leading to the antecedent conditions for precipitation; and the modification of that storm structure by the precipitation. With winter fast approaching, the audience should soon be able to carry out their own observations of winter precipitation.

Prof. Stewart is a professor at McGill's Atmospheric and Oceanic Sciences Department where he studies Extreme Weather including winter, mountain and Arctic storms as well as drought. His primary research interest is to better understand the fine scale structures of such storms and their precipitation, but he also researches the catastrophic precipitation that sometimes occurs around drought regions and/or ends drought. He carries out field studies examining the detailed nature of winter precipitation in the Montreal area; he has carried out and is carrying out other projects across the country including the Arctic in which he flies through storms in instrumented aircraft; and he also leads large Canadian and international efforts studying extremes within the climate system including droughts and extended flooding.