Browsing Institutt for geofag by Author "Etzelmüller, Bernd"

Now showing items 1-20 of 35

  • A Landform Evolution Model for the Mannen Area in Romsdal Valley, Norway 
    Hilger, Paula; Hermanns, Reginald; Etzelmüller, Bernd (Chapter / Bokkapittel / AcceptedVersion; Peer reviewed, 2020)
    The Quaternary geology of western Norway’s landscape is the result of glacial and post-glacial sedimentation and erosional processes, a significant sea-level drop and high rock-slope failure activity. All these processes ...
  • Data Descriptor: Circumpolar permafrost maps and geohazard indices for near-future infrastructure risk assessments 
    Karjalainen, Olli; Aalto, Juha; Luoto, Miska; Westermann, Sebastian; Romanovsky, Vladimir E; Nelson, Frederick E.; Etzelmüller, Bernd; Hjort, Jan (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Ongoing climate change is causing fundamental changes in the Arctic, some of which can be hazardous to nature and human activity. In the context of Earth surface systems, warming climate may lead to rising ground temperatures ...
  • Degrading permafrost puts Arctic infrastructure at risk by mid-century 
    Hjort, Jan; Karjalainen, Olli; Aalto, Juha; Westermann, Sebastian; Romanovsky, Vladimir E; Nelson, Frederick E.; Etzelmüller, Bernd; Luoto, Miska (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Degradation of near-surface permafrost can pose a serious threat to the utilization of natural resources, and to the sustainable development of Arctic communities. Here we identify at unprecedentedly high spatial resolution ...
  • Explicitly modelling microtopography in permafrost landscapes in a land surface model (JULES vn5.4_microtopography) 
    Smith, Noah D.; Burke, Eleanor J.; Aas, Kjetil Schanke; Althuizen, Inge; Boike, Julia; Christiansen, Casper Tai; Etzelmüller, Bernd; Friborg, Thomas; Lee, Hanna; Rumbold, Heather; Turton, Rachael H.; Westermann, Sebastian; Chadburn, Sarah E. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Microtopography can be a key driver of heterogeneity in the ground thermal and hydrological regime of permafrost landscapes. In turn, this heterogeneity can influence plant communities, methane fluxes, and the initiation ...
  • High potential for loss of permafrost landforms in a changing climate 
    Karjalainen, Olli; Luoto, Miska; Aalto, Juha; Etzelmüller, Bernd; Grosse, Guido; Jones, Benjamin M.; Lilleøren, Karianne Staalesen; Hjort, Jan (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    The presence of ground ice in Arctic soils exerts a major effect on permafrost hydrology and ecology, and factors prominently into geomorphic landform development. As most ground ice has accumulated in near-surface permafrost, ...
  • Holocene development of subarctic permafrost peatlands in Finnmark, northern Norway 
    Kjellman, Sofia E.; Axelsson, Pia E.; Etzelmüller, Bernd; Westermann, Sebastian; Sannel, A. Britta K. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
    Subarctic permafrost peatlands are important soil organic carbon pools, and improved knowledge about peat properties and peatland sensitivity to past climate change is essential when predicting future response to a warmer ...
  • Icelandic permafrost dynamics since the Last Glacial Maximum – model results and geomorphological implications 
    Etzelmüller, Bernd; Patton, Henry; Schomacker, Anders; Czekirda, Justyna; Girod, Luc; Hubbard, Alun Lloyd; Lilleøren, Karianne Staalesen; Westermann, Sebastian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Iceland’s periglacial realm is one of the most dynamic on the planet, with active geomorphologicalprocesses and high weathering rates of young bedrock resulting in high sediment yields and ongoingmass movement. Permafrost ...
  • Incorporating InSAR kinematics into rock glacier inventories: insights from 11 regions worldwide 
    Bertone, Aldo; Barboux, Chloé; Bodin, Xavier; Bolch, Tobias; Brardinoni, Francesco; Caduff, Rafael; Christiansen, Hanne H; Darrow, Margaret M.; Delaloye, Reynald; Etzelmüller, Bernd; Humlum, Ole; Lambiel, Christophe; Lilleøren, Karianne Staalesen; Mair, Volkmar; Pellegrinon, Gabriel; Rouyet, Line; Ruiz, Lucas; Strozzi, Tazio (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Rock glaciers are landforms related to permafrost creep that are sensitive to climate variability and change. Their spatial distribution and kinematic behaviour can be critical for managing water resources and geohazards ...
  • Lateral thermokarst patterns in permafrost peat plateaus in northern Norway 
    Martin, Leo Celestin Paul; Nitzbon, Jan; Scheer, Johanna; Aas, Kjetil Schanke; Eiken, Trond; Langer, Moritz; Filhol, Simon; Etzelmüller, Bernd; Westermann, Sebastian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Subarctic peatlands underlain by permafrost contain significant amounts of organic carbon. Our ability to quantify the evolution of such permafrost landscapes in numerical models is critical for providing robust predictions ...
  • Modelling conductive heat flow between steep rock walls and talus slopes–thermal processes and geomorphological implications 
    Myhra, Kristin Sæterdal; Westermann, Sebastian; Etzelmüller, Bernd (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    The thermal regime in steep and snow-free rock slopes is crucial for understanding rock slope stability, frost weathering and the associated material production in steep mountain areas. In this study, we model heat flow ...
  • Multiple rock-slope failures from Mannen in Romsdal Valley, western Norway, revealed from Quaternary geological mapping and 10Be exposure dating 
    Hilger, Paula; Hermanns, Reginald; Gosse, John C; Jacobs, B; Etzelmüller, Bernd; Krautblatter, Michael (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
    Oversteepened valley walls in western Norway have high recurrences of Holocene rock-slope failure activity causing significant risk to communities and infrastructure. Deposits from six to nine catastrophic rock-slope failure ...
  • Near-surface temperatures and potential for frost weathering in blockfields in Norway and Svalbard 
    Peter, Maria; Andersen, Jane Lund; Nixon, Francis Chantel; Etzelmüller, Bernd; Westermann, Sebastian; Fredin, Ola (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Blockfields remain enigmatic regarding their origin, internal structure, surface processes, and glaciological implications. In Scandinavia, blockfields are found on high-elevation, low-relief mountains (plateaus) across ...
  • Northern Hemisphere permafrost map based on TTOP modelling for 2000–2016 at 1 km2 scale 
    Obu, Jaroslav; Westermann, Sebastian; Bartsch, Annett; Berdnikov, Nikolai M.; Christiansen, Hanne H; Dashtseren, Avirmed; Delaloye, Reynald; Elberling, Bo; Etzelmüller, Bernd; Kholodov, Alexander; Khomutov, Artem V.; Kääb, Andreas; Leibman, Marina O.; Lewkowicz, Antoni G.; Panda, Santosh K.; Romanovsky, Vladimir E.; Way, Robert G.; Westergaard-Nielsen, Andreas; Wu, Tonghua; Yamkhin, Jambaljav; Zou, Defu (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Permafrost is a key element of the cryosphere and an essential climate variable in the Global Climate Observing System. There is no remote-sensing method available to reliably monitor the permafrost thermal state. To ...
  • Permafrost as a first order control on long-term rock-slope deformation in (Sub-)Arctic Norway 
    Hilger, Paula; Hermanns, Reginald; Czekirda, Justyna; Sæterdal, Kristin Myhra; Gosse, John C.; Etzelmüller, Bernd (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Assessing initiation of rock-slope deformation and paleo-slip rates of rockslides is important to understand the impact of climate variability - in particular permafrost changes - on rockslide activity. Norway, with 6–6.5% ...
  • Permafrost controls the displacement rates of large unstable rock-slopes in subarctic environments 
    Penna, Ivanna; Magnin, Florence; Nicolet, Pierrick; Etzelmüller, Bernd; Hermanns, Reginald; Böhme, Martina; Kristensen, Lene; Noel, Francois; Bredal, Marie Bergvik; Dehls, John F. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Determining the link between permafrost and the displacement rates of large unstable rock-slopes (LURSs) is fundamental for understanding future hazard scenarios and establishing appropriate management strategies. From an ...
  • Permafrost distribution in steep rock slopes in Norway: measurements, statistical modelling and implications for geomorphological processes 
    Magnin, Florence; Etzelmüller, Bernd; Westermann, Sebastian; Isaksen, Ketil; Hilger, Paula; Hermanns, Reginald (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Permafrost in steep rock slopes has been increasingly studied since the early 2000s in conjunction with a growing number of rock slope failures, which likely resulted from permafrost degradation. In Norway, rock slope ...
  • Permafrost in monitored unstable rock slopes in Norway-New insights from temperature and surface velocity measurements, geophysical surveying, and ground temperature modelling 
    Etzelmüller, Bernd; Czekirda, Justyna; Magnin, Florence; Duvillard, Pierre-Allain; Ravanel, Ludovic; Malet, Emanuelle; Aspaas, Andreas Grøvan; Kristensen, Lene; Skrede, Ingrid; Majala, Gudrun D.; Jacobs, Benjamin; Leinauer, Johannes; Hauck, Christian; Hilbich, Christin; Böhme, Martina; Hermanns, Reginald; Eriksen, Harald Øverli; Lauknes, Tom Rune; Krautblatter, Michael; Westermann, Sebastian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    The warming and subsequent degradation of mountain permafrost within alpine areas represent an important process influencing the stability of steep slopes and rock faces. The unstable and monitored slopes of Mannen (Møre ...
  • Permafrost is warming at a global scale 
    Biskaborn, Boris K.; Smith, Sharon L.; Noetzli, Jeannette; Matthes, Heidrun; Vieira, Gonçalo; Streletskiy, Dmitry A.; Schoeneich, Philippe; Romanovsky, Vladimir E.; Lewkowicz, Antoni G.; Abramov, Andrey; Allard, Michel; Boike, Julia; Cable, William L.; Christiansen, Hanne H; Delaloye, Reynald; Diekmann, Bernhard; Drozdov, Dmitry; Etzelmüller, Bernd; Grosse, Guido; Guglielmin, Mauro; Ingeman-Nielsen, Thomas; Isaksen, Ketil; Ishikawa, Mamoru; Johansson, Margareta; Johannsson, Halldor; Joo, Anseok; Kaverin, Dmitry; Kholodov, Alexander; Konstantinov, Pavel; Kröger, Tim; Lambiel, Christophe; Lanckman, Jean-Pierre; Luo, Dongliang; Malkova, Galina; Meiklejohn, Ian; Moskalenko, Natalia; Oliva, Marc; Phillips, Marcia; Ramos, Miguel; Sannel, A. Britta K.; Sergeev, Dmitrii; Seybold, Cathy; Skryabin, Pavel; Vasiliev, Alexander; Wu, Qingbai; Yoshikawa, Kenji; Zheleznyak, Mikhail; Lantuit, Hugues (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Permafrost warming has the potential to amplify global climate change, because when frozen sediments thaw it unlocks soil organic carbon. Yet to date, no globally consistent assessment of permafrost temperature change has ...
  • Post-Little Ice Age rock wall permafrost evolution in Norway 
    Czekirda, Justyna; Etzelmüller, Bernd; Westermann, Sebastian; Isaksen, Ketil; Magnin, Florence (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    The ground thermal regime and permafrost development have an important influence on geomorphological processes in periglacial regions and ultimately landscape development. About 10 % of unstable rock slopes in Norway are ...
  • Rapid warming and degradation of mountain permafrost in Norway and Iceland 
    Etzelmüller, Bernd; Isaksen, Ketil; Czekirda, Justyna; Westermann, Sebastian; Hilbich, Christin; Hauck, Christian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract. With the EU-funded PACE (Permafrost and Climate in Europe) project at the turn of this century, several deep boreholes (100 m+) were drilled in European mountain sites, including in mainland Norway, Svalbard and ...