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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
Sorted soil circles are a form of periglacial patterned ground that is commonly noted for its striking geometric regularity. They consist of an inner fine domain bordered by gravel rings that rise some decimetres above the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
We present a multi-temporal digital inventory of Svalbard glaciers with the most recent from the late 2000s containing 33 775 km2 of glaciers covering 57% of the total land area of the archipelago. At present, 68% of the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Satellite measurements of coseismic displacements are typically based on synthetic aperture radar (SAR) interferometry or amplitude tracking, or based on optical data such as from Landsat, Sentinel-2, SPOT, ASTER, very ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
With dense SAR satellite data time series it is possible to map surface and subsurface glacier properties that vary in time. On Sentinel-1A and RADARSAT-2 backscatter time series images over mainland Norway and Svalbard, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
Glacier dynamics play an important role in the mass balance of many glaciers, ice caps and ice sheets. In this study we exploit Radarsat-2 (RS-2) Wide Fine (WF) data to determine the surface speed of Svalbard glaciers in ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
This study presents a reconstruction of the seasonal mass balance of Glacier No. 354, located in the Akshiirak range, Kyrgyzstan, from 2003 to 2014. We use a distributed accumulation and temperature-index melt model driven ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
The first of two Sentinel-2 satellites, launched mid-2015, has similar characteristics as the Landsat TM/ETM+/OLI satellites. Together, these satellites will produce a tremendous quantity of optical images worldwide for ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
Using sparsely glaciated southern Norway as a case study, we assess the potential and limitations of ICESat laser altimetry for analysing regional glacier elevation change in rough mountain terrain. Differences between ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
With its temporal resolution of 10 days (five days with two satellites, and significantly more at high latitudes), its swath width of 290 km, and its 10 m and 20 m spatial resolution bands from the visible to the shortwave ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
Mapping of glacier extents from automated classification of optical satellite images has become a major application of the freely available images from Landsat. A widely applied method is based on segmented ratio images ...