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(Article of periodic en Anglais - 2000)

Document title

Jökulhlaup initiation by ice-dam flotation : the significance of glacier debris content

Authors(s) and Affiliation(s)

TWEED F.S. ;

Abstract

Ice-dam flotation is a commonly described mechanism for the initiation of jökulhlaups (catastrophic floods)from ice-dammed lakes, but predictions of the critical lake depth required for flotation often differ from the actual lake depth at which flotation occurs. Glacier debris content is identifed as an insufficiently recognized variable in ice-dam flotation. It is demonstrated that high debris contents could suppress flotation, and thereby affect the timing, mechanism and magnitude of catastrophic lake drainage events. The density of the part of the glacier forming the ice dam is the key to predicting ice-dam flotation

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2000, vol. 25, no1 [pp. 105-108]

Bibliographic references : 33 ref.

Collation : Illustration ;

Language

Anglais

Localisation

Bureau de recherches géologiques et minières - Orléans

INIST-CNRS, Cote INIST : 17355

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2000.
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