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(Article of periodic en Anglais - 2009)

Document title

Origin and polycyclic behaviour of tundra thaw slumps, Mackenzie Delta region, Northwest Territories, Canada

published at : Permafrost in the Mackenzie Delta, Canada. Special issue

Authors(s) and Affiliation(s)

KOKELJ S.V. (1) ; LANTZ T.C. (2) ; KANIGAN J. (3) ; SMITH S.L. (4) ; COUTTS R. (5) ;
(1) Renewable Resources and Environment, Indian and Northern Affairs, Northwest Territories, Yellowknife, CANADA
(2) Centre for Applied Conservation Research, Univ., Vancouver, CANADA
(3) Lands and Operations, Indian and Northern Affairs, NT, Yellowknife, CANADA
(4) Geological Survey of Canada, Natural Resources, Ottawa, CANADA
(5) Ardent Innovation Inc., Calgary, CANADA

Abstract

The focus of this paper is the tundra uplands east of the Mackenzie Delta. The AA. describe the influence of thaw slumping on ground thermal conditions in tundra environments and examines the role of warming permafrost on talik enlargement as a mechanism driving the polycyclic behaviour of lakeside thaw slumps. The linkage between polycyclic thaw slump activity and talik expansion was investigated by : 1) examining the frequency of association between active slumps and areas of previous disturbance; 2) describing lake-bottom bathymetry adjacent to slumped shorelines; and 3) assessing the geomorphic status of slumps along shorelines of drained lakes where permafrost is aggrading

Source

Thematical fascicle

published at : Permafrost and periglacial processes / ISSN 1045-6740 / CODEN PEPPED

Editor : Wiley, Chichester - ROYAUME-UNI (1990)

Millesime : 2009, vol. 20, no 2 [pp. 173-184]

Bibliographic references : 1,5 p.

Collation : fig., tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/ppp.642

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
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