<div class="csl-bib-body">
<div class="csl-entry">Fleischer, F., Haas, F., Altmann, M., Rom, J., Ressl, C., & Becht, M. (2023). Glaciogenic Periglacial Landform in the Making—Geomorphological Evolution of a Rockfall on a Small Glacier in the Horlachtal, Stubai Alps, Austria. <i>Remote Sensing</i>, <i>15</i>(6), Article 1472. https://doi.org/10.3390/rs15061472</div>
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dc.identifier.issn
2072-4292
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/176534
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dc.description.abstract
Deglaciation in high mountain areas signifies the transition from glacial to periglacial conditioned landscapes. Due to the reduced melt rate of debris-covered glacier ice, these areas of the glacier may persist long after the surrounding glacier has melted, resulting in the formation of distinct post-glacial landforms. In this study, we examine the geomorphological evolution and potential future development of a 19,267 m³ ± 204 m³ rockfall from the permafrost-affected headwall on the low-elevated Zwieselbachferner in the Horlachtal, Stubai Alps, Austria. The analysis uses multi- epochal remote sensing data, including photogrammetrically and airborne laser scanning-derived digital elevation models, orthophotos, and satellite data, covering a period from the initial rockfall in 2003/2004 to 2022. The data reveals that the rockfall event resulted in the formation of a supraglacial debris layer of varying thickness, spanning an area of 15,920 m². Subsequently, 13 further rockfalls ranging from 67 m³ ± 6 m³ to 4250 m³ ± 121 m³ were detected. The mean ice thickness of the debris-covered area only slightly decreased between 2006 and 2022, in contrast to the surrounding glacier, whose thickness and length have strongly decreased. This results in the formation of a steep front and flanks that become increasingly covered by debris redistribution. The study suggests that the glacier ice covered by rockfall-derived debris will remain as a periglacial landform of glacial origin after the complete melting of the surrounding glacier.
en
dc.language.iso
en
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dc.publisher
MDPI
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dc.relation.ispartof
Remote Sensing
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dc.subject
alpine deglaciation
en
dc.subject
demise of a small glacier
en
dc.subject
supraglacial debris
en
dc.subject
post-glacial landscape evolution
en
dc.title
Glaciogenic Periglacial Landform in the Making—Geomorphological Evolution of a Rockfall on a Small Glacier in the Horlachtal, Stubai Alps, Austria
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dc.type
Article
en
dc.type
Artikel
de
dc.contributor.affiliation
Catholic University of Eichstätt-Ingolstadt, Germany
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dc.contributor.affiliation
Catholic University of Eichstätt-Ingolstadt, Germany
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dc.contributor.affiliation
Catholic University of Eichstätt-Ingolstadt, Germany
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dc.contributor.affiliation
Catholic University of Eichstätt-Ingolstadt, Germany
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dc.contributor.affiliation
Catholic University of Eichstätt-Ingolstadt, Germany