A steady-state mass-balance model for the Franz Josef glacier, New Zealand : testing and application

Auteur(s) et Affiliation(s)

ALEXANDER, D.J.

School of Geography, Planning and Environmental Management, Univ. of Queensland, Brisbane, Australie

DAVIES, T.R.

Dep. of Geological Sciences, Univ. Canterbury, Christchurch, Nouvelle-Zelande

SHULMEISTER, J.

School of Geography, Planning and Environmental Management, Univ. of Queensland, Brisbane, Australie

Description :
Instead of using an ice-flow rule in the model, a simple basal-shear-stress rule is calibrated to yield glacier surface slope as a function of ice depth. The AA. test the model against known temperature cooling constraints required to emplace the Little Ice Age moraines. They then use their model to represent the reduction of ablation due to a rock avalanche falling on to the ablation zone of Franz Josef glacier about 10 000 to 13 000 years ago. The findings are of significance to the ongoing debate on the climatic significance, or otherwise, of the Waiho Loop Moraine.

Type de document :
Article de périodique

Source :
Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 2011, vol. 93, n°. 1, p. 41-54, nombre de pages : 14, Références bibliographiques : 1,5 p.

Date :
2011

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

Langue :
Anglais