IGB

Connexion

(Article of periodic en Anglais - 2012)

Document title

Active layer characteristics at ten borehole sites in alpine permafrost terrain, Switzerland

Authors(s) and Affiliation(s)

ZENKLUSEN MUTTER E. (1) ; PHILLIPS M. (1) ;
(1) WSL Inst. for Snow and Avalanche Research SLF, Davos, SUISSE

Abstract

This study investigates active layer characteristics determined from ground temperature measurements at 10 borehole sites in various types of Alpine permafrost terrain. To allow intra-site comparisons, a characteristic depth within the active layer was determined for each site. The temperature series either measured or interpolated for that depth were used to investigate different thermal stages during the annual thawing and refreezing cycle. The relation between air temperature thawing-degree days and active layer thickness (ALT) was investigated on an annual, seasonal and daily basis. It is showed that at least daily data are required to establish the relevant characteristics of active layer development. Periods of slow advance of the thaw plane, interpreted as being due to the presence of ice-bearing layers within the active layer, are particularly important to the final ALT

Source

Article of periodic

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

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

Millesime : 2012, vol. 23, no2 [pp. 138-151]

Bibliographic references : 45 ref.

Collation : 10 fig., 4 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/ppp.1738

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
Refdoc record number (ud4) : 26261022 : Permanent link - XML version
Powered by Pxxo