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(Article of periodic en Anglais - 2013)

Document title

The active layer : A conceptual review of monitoring, modelling techniques and changes in a warming climate

Authors(s) and Affiliation(s)

BONNAVENTURE P.P. (1) ; LAMOUREUX S.F. (1) ;
(1) Queen's Univ., Kingston, CANADA

Abstract

This paper examines various different conceptual active layer systems, identifying 5 active layer types : bedrock (Type I), rock glacier or debris covered (Type II), mineral soil (Type III), organic mat or soil (Type IV) and submerged (Type V) active layer systems. The review also highlights various active layer monitoring techniques including : probing, the Circumpolar Active Layer Monitoring Program (CALM) and frost tubes. Active layer modelling techniques are also reviewed, including the Stefan and the Kudryavtsev equations. In addition, the study highlights the active layer in a changing climate, examining the sensitivities of this layer to changes in temperature, precipitation and surface changes. Although the active layer has been well studied, knowledge gaps still exist including conflicting definitions between the thermal definition (0°C) and the physical definition (frozen water)

Source

Article of periodic

published at : Progress in physical geography / ISSN 0309-1333 / CODEN PPGEEC

Editor : Sage Publications, London - ROYAUME-UNI (1977)

Millesime : 2013, vol. 37, no3 [pp. 352-376]

Bibliographic references : 4 p.

Collation : 7 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 14648 A

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1177/0309133313478314

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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