inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Comparison of Late Pleistocene and modern glacier extents in Central Nepal based on digital elevation data and satellite imagery

Auteurs :
DUNCAN, C.C.
KLEIN, A.J.
MASEK, J.G.
ISACKS, B.L.

Description :
This study investigates climate change over glacial time scales by comparing the modern and full-glacial extents of valley glaciation in the central Himalaya and estimating the relative climate changes they imply. To map full-glacial extents, the AA. adapt traditional field- and map-based geomorphic methods for use with a 90 m resolution digital elevation model (DEM) within a geographical information system (GIS). They analyze the valley morphology of the drainage network of central Nepal, using cross-valley form and slope angle statistics to discriminate between glacial and fluvial valleys. For both full-glacial and modern cases, ELA depressions are computed from the glacier limits using the DEM and a toe-to-headwall altitude ratio of 0.5.


Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 1998, vol. 49, n°. 3, p. 241-254, Collation : Illustration, Références bibliographiques : 3 p.

Date :
1998

Editeur :
Pays édition : Etats-Unis, San Diego, CA, Elsevier

Langue :
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)