Geophysical surveys designed to delineate the altitudinal limit of mountain permafrost : an example from Jotunheimen, Norway

The nature and dynamics of mountain permafrost : papers from the PACE21 contribution to the International Permafrost Association, July 2003

Auteurs :
HAUCK, C.
ISAKSEN, K.
VONDER MÜHLL, D.
SOLLID, J.L.
HARRIS, C.

Description :
Three geophysical methods (DC resistivity tomography, refraction seismic tomography and electromagnetic profiling (EM-31) in comparison with direct temperature measurements) have been applied to delineate the altitudinal limit of Jotunheimen permafrost. The good agreement with temperature-based methods validates empirical approaches such as the relation between bottom temperature of snow cover (BTS) and permafrost occurences, and further supports the findings from the geophysical surveys.


Type de document :
Congrès

Source :
International Conference on Permafrost, 8, Zürich, Suisse, 2003-07-22, Permafrost and periglacial processes, issn : 1045-6740, 2004, vol. 15, n°. 3, p. 191-205, nombre de pages : 15, Collation : Illustration, Références bibliographiques : 33 ref.

Date :
2004

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley