Fieldwork in Inner Troms, Northern Norway 21-26 August 2007
Contact person for additional information: Hanne H. Christiansen
in unstable rock slopes
At the mountain Nordnes, north of Skibotn, we collaborate with the inter-municipality project that has initiated monitoring of two sites on Nordnes (Kåfjord, Lyngen and Storfjord municipality). We study the thermal regime in the open cracks and surrounding bedrock at the top of the mountain slope to increase the understanding of the processes that expands these cracks.
TSP Norway scientist Lars H. Blikra (left) and the Kåfjord community staff working at Nordnes, Steinar, Roald and Henning.
deliminate the extent of the cracks and to characterise any potential ice
content in the cracks we also performed geophysical investigations to study the
resistivity of the ground. This type of investigations were also done earlier
this summer by Jan-Steinar Rønning and Einar Dalsegg (NGU) along a more than
During our fieldwork we saw ice bodies in the inner, deeper parts of the cracks and some few first results of the temperature monitoring showed conditions most of the winter around 0˚C. In other cracks we found cold air drainage. This seems to indicate that permafrost may exist in the cracks.
installed thermistors to register temperatures of the outer
The Kåfjord community staff are using 4-wheel driven vehicles for transportation on Nordnes, and they were very helpful in assisting us with our fieldwork, including bringing our heavy equipment down the mountain. We look forward to further collaboration on Nordnes.
Installing thermistors in a north facing rock slope at Nordnes. In the background the foundation for the reflector plate for one of the single lasers is seen.
Preparing for moving equipment with the Kåfjord project 4-wheel driven vehicles on Nordnes.
Text and photos by Hanne H. Christiansen