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(Article of periodic en Anglais - 2013)

Document title

Ground thermal regime and permafrost distribution under a changing climate in Northern Norway

Authors(s) and Affiliation(s)

FARBROT H. (1) ; ISAKSEN K. (2) ; ETZELMÜLLER B. (1) ; GISNÅS K. (1) ;
(1) Dept. of Geosciences, Univ., Oslo, NORVEGE
(2) Norwegian Meteorological Inst., Oslo, NORVEGE

Abstract

Since 2002, ground and ground surface temperatures have been systematically measured in the mountains of Troms and Finnmark, northern Norway. These data were used to calibrate and validate a transient heat flow model and a spatial permafrost model, to address ground thermal development since the end of the Little Ice Age, as well as possible permafrost responses to anticipated future climate changes. Approximately 20 per cent of the land area is underlain by permafrost, and in Finnmark, permafrost in palsa mires seems to dominate. The study identifies 3 major permafrost regions in northern Norway : (1) maritime mountain permafrost in western Troms; (2) continental permafrost above the treeline and in bogs in Finnmark; and (3) Low Arctic permafrost on the peninsula of Varangerhalvøya, forming a transition between the Scandinavian mountain-dominated permafrost in the south and the arctic permafrost towards the north and east

Source

Article of periodic

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

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

Millesime : 2013, vol. 24, no1 [pp. 20-38]

Bibliographic references : 2 p.

Collation : 11 fig., 8 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/ppp.1763

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