A model for variations in gelifluction rates with temperature and topography: implications for global change

Arctic and alpine geomorphology and environmental change

Auteur(s) et Affiliation(s)

KIRKBY, M.J.

University of Leeds, School of Geography, Royaume-Uni

ANDRÉ, M.-F.

Laboratoire de Géographie Physique, URA 1562-CNRS, Clermont-Ferrand, France

Description :
A model is proposed for gelifluction rates, in terms of active layer depths and sub-surface runoff. It has been applied, using a global database of monthly climate, to estimate regional variations in gelifluction rates under current conditions, and with both increases and decreases in mean temperatures. It is concluded that wide bands, roughly between 40-65°N and S, should have experienced a period of very intense gelifluction during the postglacial warming.

Type de document :
Congrès

Source :
International geosymposium, Abisko, Suede, 1994-08-29, Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 1995, vol. 77, n°. 4, p. 269-278, Collation : Illustration, Références bibliographiques : 11 ref.

Date :
1995

Editeur :
Pays édition : Suede, Stockholm, Svenska sällskapet för antropologi och geografi

Langue :
Anglais