IGB

Connexion

(Article of periodic en Anglais - 2011)

Document title

Automated time-lapse ERT for improved process analysis and monitoring of frozen ground

published at : Special issue : In honour of Professor Charles harris

Authors(s) and Affiliation(s)

HILBICH C. (1 2) ; FUSS C. (3) ; HAUCK C. (4) ;
(1) Geographical Inst., Univ., Jena, ALLEMAGNE
(2) Geographical Inst., Univ., Zurich, SUISSE
(3) Geolog., Augsburg, ALLEMAGNE
(4) Dep. of Geosciences, Univ., Fribourg, SUISSE

Abstract

A new automated electrical resistivity tomography (A-ERT) system is described that allows continuous measurements of the electrical resistivity distribution in high-mountain or polar terrain. The advantages of continuous resistivity monitoring, as opposed to single measurements at irregular time intervals, are illustrated using the permafrost monitoring station at the Schilthorn, Swiss Alps. Results from a one-year dataset show small temporal changes during periods with snow cover, and the largest changes during snowmelt in early summer and during freezing in autumn, which are in phase with changes in either near-surface soil moisture or subsurface temperature. As a result of its cost-effective ability to monitor freezing and thawing processes even at greater depths, the new A-ERT system can be widely applied in permafrost regions

Source

Thematical fascicle

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

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

Millesime : 2011, vol. 22, no 4 [pp. 306-319]

Bibliographic references : 1 p.

Collation : fig., tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/ppp.732

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
Refdoc record number (ud4) : 25607136 : Permanent link - XML version
Powered by Pxxo