Anmelden

    Suche nach Personen

    plus im Publikationsserver
    plus bei BASE
    plus bei Google Scholar

    Daten exportieren

    		  

    Multi-decadal (1953–2017) rock glacier kinematics analysed by high-resolution topographic data in the upper Kaunertal, Austria

    Titelangaben

    Verfügbarkeit überprüfen

    Fleischer, Fabian ; Haas, Florian ; Piermattei, Livia ; Pfeiffer, Madlene ; Heckmann, Tobias ; Altmann, Moritz ; Rom, Jakob ; Stark, Manuel ; Wimmer, Michael ; Pfeifer, Norbert ; Becht, Michael:
    Multi-decadal (1953–2017) rock glacier kinematics analysed by high-resolution topographic data in the upper Kaunertal, Austria.
    In: The Cryosphere. 15 (2021) 12. - S. 5345-5369.
    ISSN 1994-0416 ; 1994-0424

    Volltext

    Open Access
    [img]
    Vorschau
    		 Text (PDF)
    Verfügbar unter folgender Lizenz: Creative Commons: Attribution 4.0 International (CC BY 4.0) Creative Commons: Namensnennung (CC BY 4.0) .
    Download (26MB) | Vorschau
    Volltext Link zum Volltext (externe URL):
    https://doi.org/10.5194/tc-15-5345-2021

    Kurzfassung/Abstract

    Permafrost is being degraded worldwide due to the change in external forcing caused by climate change. This has also been shown to affect the morphodynamics of active rock glaciers. We studied these changes, depending on the analysis, on nine or eight active rock glaciers, respectively, with different characteristics in multiple epochs between 1953 and 2017 in Kaunertal, Austria. A combination of historical aerial photographs and airborne laser scanning data and their derivatives were used to analyse surface movement and surface elevation change. In general, the studied landforms showed a significant acceleration of varying magnitude in the epoch 1997–2006 and a volume loss to variable degrees throughout the investigation period. Rock glaciers related to glacier forefields showed significantly higher rates of subsidence than talus-connected ones. Besides, we detected two rock glaciers with deviating behaviour and one that showed an inactivation of its terminal part. By analysing meteorological data (temperature, precipitation and snow cover onset and duration), we were able to identify possible links to these external forcing parameters. The catchment-wide survey further revealed that, despite the general trend, timing, magnitude and temporal peaks of morphodynamic changes indicate a slightly different sensitivity, response or response time of individual rock glaciers to fluctuations and changes in external forcing parameters.

    Forschungsprojekte

    SEHAG subproject 3 - Spatial and temporal changes in the geomorphic process dynamics on slopes in the Central Alps since the Little Ice Age

    Weitere Angaben

    Publikationsform:Artikel
    Sprache des Eintrags:Englisch
    Institutionen der Universität:Mathematisch-Geographische Fakultät > Geographie > Lehrstuhl für Physische Geographie
    DOI / URN / ID:10.5194/tc-15-5345-2021
    Open Access: Freie Zugänglichkeit des Volltexts?:Ja
    Peer-Review-Journal:Ja
    Verlag:Copernicus Publ.
    Die Zeitschrift ist nachgewiesen in:
    Titel an der KU entstanden:Ja
    KU.edoc-ID:29160
    Eingestellt am: 06. Dez 2021 15:35
    Letzte Änderung: 01. Jun 2022 11:21
    URL zu dieser Anzeige: https://edoc.ku.de/id/eprint/29160/
    AnalyticsGoogle Scholar