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Using SAR satellite data time series for regional glacier mapping 
Winsvold, Solveig Havstad; Kääb, Andreas; Nuth, Christopher; Andreassen, Liss Marie; Van Pelt, Ward J.J.; Schellenberger, Thomas (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, ...
Multi-decadal mass balance series of three Kyrgyz glaciers inferred from modelling constrained with repeated snow line observations 
Barandun, Martina; Huss, Matthias; Usubaliev, Ryskul; Azisov, Erlan; Berthier, Etienne; Kääb, Andreas; Bolch, Tobias; Hoelzle, Martin (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Abstract. Glacier surface mass balance observations in the Tien Shan and Pamir are relatively sparse and often discontinuous. Nevertheless, glaciers are one of the most important components of the high-mountain cryosphere ...
Regional geomorphological conditions related to recent changes of glacial lakes in the issyk-kul basin, Northern Tien Shan 
Daiyrov, Mirlan; Narama, Chiyuki; Yamanokuchi, Tsutomu; Tadono, Takeo; Kääb, Andreas; Ukita, Jinro (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
To assess the current state of glacial lakes, we examine the seasonal lake-area changes of 339 glacial lakes in the Teskey and Kungoy Ranges of the Issyk-Kul Basin, Kyrgyzstan, during 2013–2016 based on optical satellite ...
Large drainages from short-lived glacial lakes in the Teskey Range, Tien Shan Mountains, Central Asia 
Narama, Chiyuki; Daiyrov, Mirlan; Duishonakunov, Murataly; Tadono, Takeo; Sato, Hayato; Kääb, Andreas; Ukita, Jinro; Abdrakhmatov, Kanatbek (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Four large drainages from glacial lakes occurred during 2006–2014 in the western Teskey Range, Kyrgyzstan. These floods caused extensive damage, killing people and livestock as well as destroying property and crops. Using ...
Massive collapse of two glaciers in western Tibet in 2016 after surge-like instability 
Kääb, Andreas; Leinss, Silvan; Gilbert, Adrien; Bühler, Yves; Gascoin, Simon; Evans, S.; bartelt, perry; Berthier, Etienne; Brun, Fanny; Chao, Wei-An; Farinotti, Daniel; Gimbert, Florent; Guo, W. L.; Huggel, Christian; Kargel, Jeffrey S.; Leonard, Gregory; Tian, L.; Treichler, Désirée Silvana; Yao, Tandong (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
Surges and glacier avalanches are expressions of glacier instability, and among the most dramatic phenomena in the mountain cryosphere. Until now, the catastrophic collapse of a glacier, combining the large volume of surges ...
Thaw subsidence of a Yedoma landscape in Northern Siberia, measured in situ and estimated from TerraSAR-X interferometry 
Antonova, Sofia; Sudhaus, Henriette; Strozzi, Tazio; Zwieback, Simon; Kääb, Andreas; Heim, Birgit; Langer, Moritz; Bornemann, Niko; Boike, Julia (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
In permafrost areas, seasonal freeze-thaw cycles result in upward and downward movements of the ground. For some permafrost areas, long-term downward movements were reported during the last decade. We measured seasonal and ...
Precise DEM extraction from Svalbard using 1936 high oblique imagery 
Girod, Luc Maurice Ramuntcho; Nielsen, Niels Ivar; Couderette, Frédérique; Nuth, Christopher; Kääb, Andreas (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Stretching time series further in the past with the best possible accuracy is essential to the understanding of climate change impacts and geomorphological processes evolving on decadal-scale time spans. In the first half ...
Coseismic displacements of the 14 November 2016 Mw 7.8 Kaikoura, New Zealand, earthquake using the Planet optical cubesat constellation 
Kääb, Andreas; Altena, Bas; Mascaro, Joseph (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 ...
Frontal destabilization of Stonebreen, Edgeøya, Svalbard 
Strozzi, Tazio; Kääb, Andreas; Schellenberger, Thomas (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
In consideration of the strong atmospheric warming that has been observed since the 1990s in polar regions there is a need to quantify mass loss of Arctic ice caps and glaciers and their contribution to sea level rise. In ...
The 2015 surge of hispar glacier in the karakoram 
Paul, Frank; Strozzi, Tazio; Schellenberger, Thomas; Kääb, Andreas (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The Karakoram mountain range is well known for its numerous surge-type glaciers of which several have recently surged or are still doing so. Analysis of multi-temporal satellite images and digital elevation models have ...
Circum-arctic changes in the flow of glaciers and ice caps from satellite SAR data between the 1990s and 2017 
Strozzi, Tazio; Paul, Frank; Wiesmann, Andreas; Schellenberger, Thomas; Kääb, Andreas (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We computed circum-Arctic surface velocity maps of glaciers and ice caps over the Canadian Arctic, Svalbard and the Russian Arctic for at least two times between the 1990s and 2017 using satellite SAR data. Our analyses ...
MMASTER: Improved ASTER DEMs for elevation change monitoring 
Girod, Luc Maurice Ramuntcho; Nuth, Christopher; Kääb, Andreas; McNabb, Robert Whitfield; Galland, Olivier (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) system on board the Terra (EOS AM-1) satellite has been a source of stereoscopic images covering the whole globe at 15-m resolution with consistent ...
A spatially resolved estimate of High Mountain Asia glacier mass balances from 2000 to 2016 
Brun, Fanny; Berthier, Etienne; Wagnon, Patrick; Kääb, Andreas; Treichler, Désirée Silvana (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
High Mountain Asia hosts the largest glacier concentration outside the polar regions. These glaciers are important contributors to streamflow in one of the most populated areas of the world. Past studies have used methods ...
Snow depth from ICESat laser altimetry - A test study in southern Norway 
Treichler, Désirée Silvana; Kääb, Andreas (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
Direct snow depth measurements are sparse, especially in remote areas. In this study, we assess the potential of ICESat laser altimetry for providing snow depths for its operational period 2003–2009 on the example of the ...
Elevation change and improved velocity retrieval using orthorectified optical satellite data from different orbits 
Altena, Bas; Kääb, Andreas (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Optical satellite products are available at different processing levels. Of these products, terrain corrected (i.e., orthorectified) products are the ones mostly used for glacier displacement estimation. For terrain ...
Weekly glacier flow estimation from dense satellite time series using adapted optical flow technology 
Altena, Bas; Kääb, Andreas (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Contemporary optical remote sensing satellites or constellations of satellites can acquire imagery at sub-weekly or even daily timescales. These systems have the potential to facilitate intra-seasonal, short-term surface ...
Potential and limitations of photometric reconstruction through a flock of dove cubesats 
Altena, Bas; Mousivand, A; Mascaro, J; Kääb, Andreas (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
When Earth observation satellite systems are designed, one typically prefers a sun-synchronous orbit. However, the first generations of cubesats from Planet were deployed out of the International Space Station (ISS) and ...
Terrain changes from images acquired on opportunistic flights by SfM photogrammetry 
Girod, Luc Maurice Ramuntcho; Nuth, Christopher; Kääb, Andreas; Etzelmüller, Bernd; Köhler, Jack C. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Acquiring data to analyse change in topography is often a costly endeavour requiring either extensive, potentially risky, fieldwork and/or expensive equipment or commercial data. Bringing the cost down while keeping the ...
An Inter-Comparison of Techniques for Determining Velocities of Maritime Arctic Glaciers, Svalbard, Using Radarsat-2 Wide Fine Mode Data 
Schellenberger, Thomas; Van Wychen, Wesley; Copland, Luke; Kääb, Andreas; Gray, Laurence (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 ...
Glacier remote sensing using Sentinel-2. Part I: Radiometric and geometric performance, and application to ice velocity 
Kääb, Andreas; Winsvold, Solveig Havstad; Altena, Bas; Nuth, Christopher; Nagler, Thomas; Wuite, Jan (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 ...
ICESat laser altimetry over small mountain glaciers 
Treichler, Désirée Silvana; Kääb, Andreas (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 ...
Regional Glacier Mapping Using Optical Satellite Data Time Series 
Winsvold, Solveig Havstad; Kääb, Andreas; Nuth, Christopher (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 ...
Glacier Remote Sensing Using Sentinel-2. Part II: Mapping Glacier Extents and Surface Facies, and Comparison to Landsat 8 
Paul, Frank; Winsvold, Solveig H.; Kääb, Andreas; Nagler, Thomas; Schwaizer, Gabriele (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 ...
Mass-balance reconstruction for Glacier No. 354, Tien Shan, from 2003 to 2014 
Kronenberg, M; Brandun, M; Hoelzle, Martin; Huss, Matthias; Farinotti, Daniel; Azisov, E; Usubaliev, R; Gafurov, A; Petrakov, D.; Kääb, Andreas (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 ...
Glacier-surge mechanisms promoted by a hydro-thermodynamic feedback to summer melt 
Dunse, Thorben; Schellenberger, Thomas; Hagen, Jon Ove Methlie; Kääb, Andreas; Schuler, Thomas Vikhamar; Reijmer, Carleen (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
Mass loss from glaciers and ice sheets currently accounts for two-thirds of the observed global sea-level rise and has accelerated since the 1990s, coincident with strong atmospheric warming in the polar regions. Here we ...
Surface kinematics of periglacial sorted circles using structure-from-motion technology 
Kääb, Andreas; Girod, Luc Maurice Ramuntcho; Berthling, Ivar Thoralf (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 ...
Surface speed and frontal ablation of Kronebreen and Kongsbreen, NW-Svalbard, from SAR offset tracking 
Schellenberger, Thomas; Dunse, Thorben; Kääb, Andreas; Kohler, Jack; Reijmer, Carleen (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
Kronebreen and Kongsbreen are among the fastest-flowing glaciers on Svalbard and, therefore, important contributors to the total dynamic mass loss from the archipelago. Here, we present a time series of area-wide surface ...
Decadal changes from a multi-temporal glacier inventory of Svalbard 
Nuth, Christopher; Kohler, Jack; König, Max; Deschwanden, Angela von; Hagen, Jon Ove Methlie; Kääb, Andreas; Moholdt, Geir; Pettersson, Rickard (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 ...
River ice flux and water velocities along a 600 km-long reach of Lena River, Siberia, from satellite stereo 
Kääb, Andreas; Lamare, Maxim; Abrams, Michael (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
Knowledge of water-surface velocities in rivers is useful for understanding a range of river processes. In cold regions, river-ice break up and the related downstream transport of ice debris is often the most important ...
 
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