A general theory of rock glacier creep based on in‐situ and remote sensing observations
The ongoing acceleration in rock glacier velocities concurrent with increasing air temperatures, and the widespread onset of rock glacier destabilization have reinforced the interest in rock glacier dynamics and in its coupling to the climate system. Despite the increasing number of studies investig...
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Wiley-Blackwell Publishing, Inc.
2021
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ftunivzuerich:oai:www.zora.uzh.ch:193977 2024-06-23T07:56:10+00:00 A general theory of rock glacier creep based on in‐situ and remote sensing observations Cicoira, Alessandro Marcer, Marco Gaertner-Roer, Isabelle Bodin, Xavier Arenson, Lukas U Vieli, Andreas 2021-01-01 application/pdf https://www.zora.uzh.ch/id/eprint/193977/ https://www.zora.uzh.ch/id/eprint/193977/1/2020_Cicoira_ppp.2090-1.pdf https://doi.org/10.5167/uzh-193977 https://doi.org/10.1002/ppp.2090 eng eng Wiley-Blackwell Publishing, Inc. https://www.zora.uzh.ch/id/eprint/193977/1/2020_Cicoira_ppp.2090-1.pdf doi:10.5167/uzh-193977 doi:10.1002/ppp.2090 urn:issn:1045-6740 info:eu-repo/semantics/openAccess Creative Commons: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) http://creativecommons.org/licenses/by-nc/4.0/ Cicoira, Alessandro; Marcer, Marco; Gaertner-Roer, Isabelle; Bodin, Xavier; Arenson, Lukas U; Vieli, Andreas (2021). A general theory of rock glacier creep based on in‐situ and remote sensing observations. Permafrost and Periglacial Processes, 32(1):139-153. Institute of Geography 910 Geography & travel Earth-Surface Processes Journal Article PeerReviewed info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2021 ftunivzuerich https://doi.org/10.5167/uzh-19397710.1002/ppp.2090 2024-06-12T00:39:43Z The ongoing acceleration in rock glacier velocities concurrent with increasing air temperatures, and the widespread onset of rock glacier destabilization have reinforced the interest in rock glacier dynamics and in its coupling to the climate system. Despite the increasing number of studies investigating this phenomenon, our knowledge of both the fundamental mechanisms controlling rock glacier dynamics, and their long‐term behaviour at the regional scale remain limited. We present a general theory to investigate rock glacier dynamics, its spatial patterns and temporal trends at both regional and local scale. To this end, we combine a model to calculate rock glacier thickness with an empirical creep model for ice‐rich debris, in order to derive the Bulk Creep Factor (BCF), which allows to disentangle the two contributions to the surface velocities from (i) material properties and (ii) geometry. Thereafter, we provide two examples of possible applications of this approach at a regional and local scale. Article in Journal/Newspaper Permafrost and Periglacial Processes University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
institution |
Open Polar |
collection |
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
op_collection_id |
ftunivzuerich |
language |
English |
topic |
Institute of Geography 910 Geography & travel Earth-Surface Processes |
spellingShingle |
Institute of Geography 910 Geography & travel Earth-Surface Processes Cicoira, Alessandro Marcer, Marco Gaertner-Roer, Isabelle Bodin, Xavier Arenson, Lukas U Vieli, Andreas A general theory of rock glacier creep based on in‐situ and remote sensing observations |
topic_facet |
Institute of Geography 910 Geography & travel Earth-Surface Processes |
description |
The ongoing acceleration in rock glacier velocities concurrent with increasing air temperatures, and the widespread onset of rock glacier destabilization have reinforced the interest in rock glacier dynamics and in its coupling to the climate system. Despite the increasing number of studies investigating this phenomenon, our knowledge of both the fundamental mechanisms controlling rock glacier dynamics, and their long‐term behaviour at the regional scale remain limited. We present a general theory to investigate rock glacier dynamics, its spatial patterns and temporal trends at both regional and local scale. To this end, we combine a model to calculate rock glacier thickness with an empirical creep model for ice‐rich debris, in order to derive the Bulk Creep Factor (BCF), which allows to disentangle the two contributions to the surface velocities from (i) material properties and (ii) geometry. Thereafter, we provide two examples of possible applications of this approach at a regional and local scale. |
format |
Article in Journal/Newspaper |
author |
Cicoira, Alessandro Marcer, Marco Gaertner-Roer, Isabelle Bodin, Xavier Arenson, Lukas U Vieli, Andreas |
author_facet |
Cicoira, Alessandro Marcer, Marco Gaertner-Roer, Isabelle Bodin, Xavier Arenson, Lukas U Vieli, Andreas |
author_sort |
Cicoira, Alessandro |
title |
A general theory of rock glacier creep based on in‐situ and remote sensing observations |
title_short |
A general theory of rock glacier creep based on in‐situ and remote sensing observations |
title_full |
A general theory of rock glacier creep based on in‐situ and remote sensing observations |
title_fullStr |
A general theory of rock glacier creep based on in‐situ and remote sensing observations |
title_full_unstemmed |
A general theory of rock glacier creep based on in‐situ and remote sensing observations |
title_sort |
general theory of rock glacier creep based on in‐situ and remote sensing observations |
publisher |
Wiley-Blackwell Publishing, Inc. |
publishDate |
2021 |
url |
https://www.zora.uzh.ch/id/eprint/193977/ https://www.zora.uzh.ch/id/eprint/193977/1/2020_Cicoira_ppp.2090-1.pdf https://doi.org/10.5167/uzh-193977 https://doi.org/10.1002/ppp.2090 |
genre |
Permafrost and Periglacial Processes |
genre_facet |
Permafrost and Periglacial Processes |
op_source |
Cicoira, Alessandro; Marcer, Marco; Gaertner-Roer, Isabelle; Bodin, Xavier; Arenson, Lukas U; Vieli, Andreas (2021). A general theory of rock glacier creep based on in‐situ and remote sensing observations. Permafrost and Periglacial Processes, 32(1):139-153. |
op_relation |
https://www.zora.uzh.ch/id/eprint/193977/1/2020_Cicoira_ppp.2090-1.pdf doi:10.5167/uzh-193977 doi:10.1002/ppp.2090 urn:issn:1045-6740 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.5167/uzh-19397710.1002/ppp.2090 |
_version_ |
1802649087439273984 |