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PORTAIL D'INFORMATION GÉOGRAPHIQUE

Glacier reconstruction and mass-balance modelling as a geomorphic and palaeoclimatic tool

Auteur(s) et Affiliation(s)

CARR, S.J.
Dep. of Geography, Queen Mary Univ., London, Royaume-Uni
LUKAS, S.
Dep. of Geography, Queen Mary Univ., London, Royaume-Uni
MILLS, S.C.
Dep. of Geography, Queen Mary Univ., London, Royaume-Uni


Description :
This paper reviews the application and implications of a recently revised method of glacier reconstruction (Carr and Coleman, 2007), based around glaciological principles of mass-balance. This study examines how this approach can be used to test geomorphological interpretations of former mountain glaciation and also to infer precipitation fields at sites of former glaciation. Sites of Younger Dryas niche and icefield glaciation in the British Isles demonstrate how this method can verify interpretations of marginal glaciation and begin to understand the different behaviour of outlet glaciers within the same environmental regime. Examination of a site of former niche glaciation in Southern Africa demonstrates how glacier reconstruction may be used to infer annual and seasonal precipitation values and strongly supports the idea that winter precipitation in Lesotho and SE South Africa was substantially greater than present-day values during the last glacial cycle.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2010, vol. 35, n°. 9, p. 1103-1115, nombre de pages : 13, Références bibliographiques : 2 p.

Date :
2010

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais
Droits :
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