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Ødegård, Rune Strand; Nesje, Atle; Isaksen, Ketil; Andreassen, Liss Marie & Eiken, Trond
(2016).
Archeologically significant cold ice patches in southern Norway - an indicator of mountain permafrost.
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Schuler, Thomas; Dunse, Thorben; Eiken, Trond & Hagen, Jon Ove Methlie
(2013).
Considering orographic enhancement to downscale precipitation: resolving the accumulation asymmetry and deriving a 55 year accumulation history of Austfonna, Svalbard.
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Dunse, Thorben; Schuler, Thomas; Hagen, Jon Ove Methlie & Eiken, Trond
(2013).
Ground-based monitoring of snowcover, firn area and glacier facies of Austfonna, Svalbard, to validate and improve PolarWRF climate simulations.
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Schuler, Thomas; Dunse, Thorben; Eiken, Trond; Hagen, Jon Ove Methlie; Moholdt, Geir & Østby, Torbjørn
(2011).
A framework for modeling climatic mass balance from reanalysis data - Austfonna, Svalbard.
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Sund, Monica & Eiken, Trond
(2010).
Recent surges on Blomstrandbreen, Comfortlessbreen and Nathorstbreen, Svalbard.
Journal of Glaciology.
ISSN 0022-1430.
56(195),
p. 182–184.
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Hagen, Jon Ove Methlie; Dunse, Thorben; Eiken, Trond; Moholdt, Geir; Nuth, Christopher & Schuler, Thomas
(2010).
GLACIODYN - The response of Arctic glaciers to global warming.
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Schuler, Thomas; Dunse, Thorben; Eiken, Trond; Hagen, Jon Ove Methlie; Moholdt, Geir & Nuth, Christopher
(2010).
A surface mass balance history of Austfonna, Svalbard, derived from reanalysis data.
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Isaksen, Ketil; Ødegård, Rune Strand; Etzelmuller, Bernd; Farbrot, Herman; Hipp, Tobias Florian & Eiken, Trond
[Show all 8 contributors for this article]
(2010).
Characteristics and controlling factors of warming mountain permafrost in Jotunheimen and Dovrefjell, southern Norway.
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Ødegård, Rune Strand; Isaksen, Ketil; Sollid, Johan Ludvig & Eiken, Trond
(2008).
MAGST in Mountain Permafrost, Dovrefjell, Southern Norway, 2001-2006.
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Show summary
A monitoring program to measure ground and air temperatures were started in autumn 2001 in Dovrefjell (62°15¿N, 9°20¿E), a mountainous area in southern Norway. Ground temperatures are measured in a transect from deep seasonal frost at 1039 m a.s.l. to discontinuous mountain permafrost at 1505 m a.s.l. in 11 boreholes 9 m deep. This is the first transect of this type set up in Scandinavia. Preliminary results are presented including measurements at 0.2 m and 8.5 m depth. The collected ground surface temperatures (GST) show pronounced fluctuations and large inter-annual variability. A simple normalization procedure is suggested to relate the observed GST to the reference period 1961-1990. The results suggest that even with an averaging period of 5 years the MAGST could deviate more that 1 ºC from the 30-year average. The period 2001-2006 is generally found to be warmer than the reference period, suggesting thawing permafrost at sites with discontinuous or thin snow cover.
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Moholot, Geir; Hagen, Jon Ove Methlie & Eiken, Trond
(2008).
Geometric changes of Austfonna ice cap.
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Schuler, Thomas; Dunse, Thorben; Eiken, Trond; Hagen, Jon Ove Methlie; Moholot, Geir & Taurisano, Andrea
(2008).
The accumulation pattern of Austfonna, Svalbard.
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Hagen, Jon Ove Methlie; Eiken, Trond; Schuler, Thomas; Dunse, Thorben; Melvold, Kjetil & Moholot, Geir
[Show all 9 contributors for this article]
(2008).
Recent changes in surface mass balance of the Austfonna ice cap, Svalbard.
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Dunse, Thorben; Schuler, Thomas; Hagen, Jon Ove Methlie; Eiken, Trond; Moholot, Geir & Taurisano, Andrea
[Show all 8 contributors for this article]
(2008).
Glacier facies transitions on Austfonna, Svalbard, derived from ground-penetrating radar.
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Moholot, Geir; Dunse, Thorben; Eiken, Trond; Hagen, Jon Ove Methlie; Schuler, Thomas & Brandt, Ola
(2008).
Geodetic mass balance of Vestfonna, Austfonna and Kvitøyjøkulen ice caps since 1983.
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Schuler, Thomas; Dunse, Thorben; Eiken, Trond; Hagen, Jon Ove Methlie; Moholot, Geir & Nuth, Christopher
(2008).
A 50 year accumulation history of Austfonna, Svalbard.
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Dunse, Thorben; Schuler, Thomas Vikhamar; Hagen, Jon Ove Methlie; Eiken, Trond; Moholot, Geir & Melvold, Kjetil
(2007).
Glacier facies transitions on Austfonna, Svalbard, derived from ground-penetrating radar.
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Dunse, Thorben; Schuler, Thomas Vikhamar; Hagen, Jon Ove Methlie; Eiken, Trond; Melvold, Kjetil & Moholot, Geir
(2007).
Snow accumulation over Austfonna, northeastern Svalbard, derived by ground-penetrating radar.
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Hagen, Jon Ove Methlie; Eiken, Trond; Loe, Even; Schuler, Thomas & Taurisano, Andrea
(2006).
Elevation changes on Austfonna Ice Cap.
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Loe, Even; Eiken, Trond; Hagen, Jon Ove Methlie; Melvold, Kjetil; Schuler, Thomas & Taurisano, Andrea
(2006).
Energy and mass balance at Etonbreen, Austfonna.
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Schuler, Thomas; Eiken, Trond; Hagen, Jon Ove Methlie; Loe, Even; Melvold, Kjetil & Taurisano, Andrea
(2006).
A surface mass balance model for Austfonna, Svalbard.
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Schuler, Thomas; Loe, Even; Taurisano, Andrea; Eiken, Trond; Hagen, Jon Ove Methlie & Kohler, Jack
(2006).
A calibrated surface mass balance model for the Austfonna ice cap, Svalbard.
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Farbrot, Herman; Etzelmuller, Bernd; Gudmundsson, Agust; Wangensteen, Bjørn; Eiken, Trond & Humlum, Ole
(2005).
Permafrost boreholes in Iceland.
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Wangensteen, Bjørn; Eiken, Trond; Ødegård, Rune Strand & Sollid, Johan Ludvig
(2005).
Measuring coastal cliff erosion using digital phototgrammetry in the Kongsfjorden area, Svalbard -first results.
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Wangensteen, Bjørn; Guðmundsson, Águst; Eiken, Trond; Kääb, Andreas Max; Farbrot, Herman & Etzelmuller, Bernd
(2005).
Surface displacements and surface age estimates for creeping slope landforms in Northern Iceland using digital phototgrammetry.
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Sollid, Johan Ludvig; Wangensteen, Bjørn; Ødegård, Rune Strand & Eiken, Trond
(2004).
Measuring coastal cliff erosion by means of terrestrial photogrammetry in the Kongsfjorden area, Svalbard.
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Hagen, Jon Ove Methlie; Eiken, Trond; Kohler, Jack & Melvold, Kjetil
(2004).
Geometry changes on Svalbard glaciers – mass balance or dynamic response?
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Farbrot, Herman; Wangensteen, Bjørn; Eiken, Trond; Etzelmuller, Bernd & Humlum, Ole
(2004).
Permafrost distribution in Iceland and northern Norway.
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Farbrot, Herman; Isaksen, Ketil; Eiken, Trond & Sollid, Johan Ludvig
(2004).
Internal composition and structures of a complex rock glacier, Nordenskiöldkysten, Svalbard.
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Etzelmuller, Bernd; Wangensteen, Bjørn; Gudmundsson, A.; Farbrot, Herman; Humlum, Ole & Eiken, Trond
[Show all 7 contributors for this article]
(2004).
Surface displacement, volume changes and Holocene sediment flux rates for active rock glaciers and moving debris bodies on Iceland - examples from the Tröllaskagi Peninsula, northern Iceland, and Seydisfjordu area, eastern Iceland.
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Wangensteen, Bjørn; Guðmundsson, Águst; Eiken, Trond; Kääb, Andreas Max; Farbrot, Herman & Etzelmuller, Bernd
(2004).
Surface displacement, volume change and age estimates for some debris covered glaciers and rock glaciers in northern Iceland using digital photogrammetry.
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Wangensteen, Bjørn; Guðmundsson, Águst; Eiken, Trond; Kääb, Andreas Max; Farbrot, Herman & Etzelmuller, Bernd
(2004).
Surface Displacements and Volume Changes for a Debris Covered Glacier and a Moving Debris Body at the Tröllaskagi Peninsula, Northern Iceland, by the use of Digital Photogrammetry.
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Wangensteen, Bjørn; Eiken, Trond; Ødegård, Rune Strand & Sollid, Johan Ludvig
(2003).
Establishing four sites for measuring coastal cliff erosion by means of terrestrial photogrammetry in the Kongsfjorden area, Svalbard.
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Wangensteen, Bjørn; Eiken, Trond; Melvold, Kjetil; Tønsberg, Ole Magnus & Hagen, Jon Ove Methlie
(2003).
Determining the flow fields of two glacier outlets of the Jostedalsbreen ice cap, Norway, using digital photogrammetry.
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Isaksen, Ketil; Heggem, Eva Solbjørg Flo; Bakkehøi, Steinar; Ødegård, Rune Strand; Eiken, Trond & Etzelmuller, Bernd
[Show all 7 contributors for this article]
(2003).
Mountain permafrost and energy balance on Juvvasshøe, southern Norway.
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Wangensteen, Bjørn; Eiken, Trond; Ødegård, Rune Strand & Sollid, Johan Ludvig
(2002).
Establishing of Four Sites for Measuring Coastal Cliff Erosion by Means of Terrestrial Photogrammetry in the Kongsfjorden Area, Svalbard.
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Eiken, Trond & Wangensteen, Bjørn
(2002).
Velocity measurements on Nigardsbreen by means of cross correlation of orthophotos -first test.
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Eiken, Trond; Omang, Ove Christian Dahl & Øvstedal, Ola
(2001).
A local geoid in Dronning Maud Land - The NARE 96/97 Geoid.
IGeS Bulletin.
ISSN 1128-3955.
p. 30–48.
Show summary
The main purpose of the present paper is to estimate the orthometric height of the GPS-station at Troll, Dronning Maud Land, Antarctica. Located at approximately 1300 m above sea level Troll has been connected to the GIANT-network, but it's orthometric height remains undetermined. A local geoid has been determined based on gravity-, tidal- and GPS-observations and available gravity anomalies. Information about the ice-thickness has been included in the terrain model. Based on tidal measurements the mean sea level was determined in Jutulgryta, a rift zone in the Fimbulisen ice shelf. Several gravity- and GPS-stations were measured between the two points (Jutulgryta and Troll), a distance of approximately 100 km.
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Wangensteen, Bjørn; Ødegård, Rune Strand; Eiken, Trond & Sollid, Johan Ludvig
(2001).
Measurements of coastal change in the Russian artic and at Svalbard by means of multi-temporal aerial photographs and digital photogrammetry.
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Berthling, Ivar Thoralf; Eiken, Trond & Sollid, Johan Ludvig
(2000).
Three dimensional displacements of ploughing boulders at Finse, southern Norway.
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Eiken, Trond; Omang, Ove C. D. & Øvstedal, Ola
(1999).
A local geoid in Dronning Maud Land.
Show summary
The main purpose of the present paper is to estimate the orthometric height of the GPS-station at Troll, Dronning Maud Land, Antarctica. Located at approximately 1300 m Troll has been connected to the GIANT-network, but it's orthometric height remains undetermined. A local geoid has been determined based on available gravity anomalies and vertical angle mesurements. Information about the ice-thickness has been included in the terrain model. Based on tidal measurements the mean sea level was determined in Jutulgryta, a rift zone in the Fimbulisen ice shelf. Several gravity- and GPS-stations were measured between the two points (Jutulgryta and Troll), a distance of approximately 100 km.
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Berthling, Ivar Thoralf; Eiken, Trond; Etzelmuller, Bernd & Sollid, Johan Ludvig
(1997).
The relationship between strain and morphology on a solifluction lobe, Finse, southern Norway.