Avalanche hazard in Glacier National Park : an El Niño connection ?

Auteurs :
DIXON, R.W.
BUTLER, D.R.
DECHANO, L.M.
HENRY, J.A.

Description :
Snow avalanches are a cold-season natural hazard in the Glacier National Park (GNP), Montana. This study examined local newspaper reports of avalanches during the period from 1949 to 1997 and found a tendency for El Niño years to be associated with a decrease in snow avalanches in the region. This decrease in frequency may be caused by the below-normal precipitation that occurs in the region during El Niño years. Additional factors, such as primary storm-track direction, and temperature cycling also should be examined.


Type de document :
Article de périodique

Source :
Physical geography, issn : 0272-3646, 1999, vol. 20, n°. 6, p. 461-467, Collation : Illustration, Références bibliographiques : 11 ref.

Date :
1999

Editeur :
Pays édition : Royaume-Uni, Abingdon, Taylor and Francis