Mass wasting processes affecting the surface of an alpine talus slope: Annual sediment budgets 2009–2018 at Flüelapass, eastern Swiss Alps.
Abstract An alpine permafrost talus slope at Flüelapass (Eastern Swiss Alps) was observed using annual terrestrial laser scanning measurements between 2009 and 2018. The high‐resolution digital elevation models derived from these measurements enabled the detection and quantification of mass wasting...
Published in: | Land Degradation & Development |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2019
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/ldr.3462 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fldr.3462 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ldr.3462 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ldr.3462 |
id |
crwiley:10.1002/ldr.3462 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/ldr.3462 2024-09-15T18:30:05+00:00 Mass wasting processes affecting the surface of an alpine talus slope: Annual sediment budgets 2009–2018 at Flüelapass, eastern Swiss Alps. Kenner, Robert 2019 http://dx.doi.org/10.1002/ldr.3462 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fldr.3462 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ldr.3462 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ldr.3462 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Land Degradation & Development volume 31, issue 4, page 451-462 ISSN 1085-3278 1099-145X journal-article 2019 crwiley https://doi.org/10.1002/ldr.3462 2024-08-01T04:22:01Z Abstract An alpine permafrost talus slope at Flüelapass (Eastern Swiss Alps) was observed using annual terrestrial laser scanning measurements between 2009 and 2018. The high‐resolution digital elevation models derived from these measurements enabled the detection and quantification of mass wasting processes with an accuracy of a few centimeters. Rock fall, snow avalanche erosion, and debris flow tracks could be distinguished and their quantitative and qualitative contribution to talus slope growth and shaping was examined. Erosion rates were calculated for each of the investigated processes and an estimate for the recession rate of the talus slope head wall is reported. Currently, debris flows supply most of the debris inputs to the talus slope, while snow avalanches were found to play an important role in reshaping its surface morphology. Rock fall causes distinct grain size sorting down the slope, as the travel distance of rocks increase with their size. The presented data and results illustrate the current processes occurring at the talus slope surface, which appear to differ in quantity and quality from those during the onset of the talus slope formation. Article in Journal/Newspaper permafrost Wiley Online Library Land Degradation & Development 31 4 451 462 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract An alpine permafrost talus slope at Flüelapass (Eastern Swiss Alps) was observed using annual terrestrial laser scanning measurements between 2009 and 2018. The high‐resolution digital elevation models derived from these measurements enabled the detection and quantification of mass wasting processes with an accuracy of a few centimeters. Rock fall, snow avalanche erosion, and debris flow tracks could be distinguished and their quantitative and qualitative contribution to talus slope growth and shaping was examined. Erosion rates were calculated for each of the investigated processes and an estimate for the recession rate of the talus slope head wall is reported. Currently, debris flows supply most of the debris inputs to the talus slope, while snow avalanches were found to play an important role in reshaping its surface morphology. Rock fall causes distinct grain size sorting down the slope, as the travel distance of rocks increase with their size. The presented data and results illustrate the current processes occurring at the talus slope surface, which appear to differ in quantity and quality from those during the onset of the talus slope formation. |
format |
Article in Journal/Newspaper |
author |
Kenner, Robert |
spellingShingle |
Kenner, Robert Mass wasting processes affecting the surface of an alpine talus slope: Annual sediment budgets 2009–2018 at Flüelapass, eastern Swiss Alps. |
author_facet |
Kenner, Robert |
author_sort |
Kenner, Robert |
title |
Mass wasting processes affecting the surface of an alpine talus slope: Annual sediment budgets 2009–2018 at Flüelapass, eastern Swiss Alps. |
title_short |
Mass wasting processes affecting the surface of an alpine talus slope: Annual sediment budgets 2009–2018 at Flüelapass, eastern Swiss Alps. |
title_full |
Mass wasting processes affecting the surface of an alpine talus slope: Annual sediment budgets 2009–2018 at Flüelapass, eastern Swiss Alps. |
title_fullStr |
Mass wasting processes affecting the surface of an alpine talus slope: Annual sediment budgets 2009–2018 at Flüelapass, eastern Swiss Alps. |
title_full_unstemmed |
Mass wasting processes affecting the surface of an alpine talus slope: Annual sediment budgets 2009–2018 at Flüelapass, eastern Swiss Alps. |
title_sort |
mass wasting processes affecting the surface of an alpine talus slope: annual sediment budgets 2009–2018 at flüelapass, eastern swiss alps. |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1002/ldr.3462 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fldr.3462 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ldr.3462 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ldr.3462 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Land Degradation & Development volume 31, issue 4, page 451-462 ISSN 1085-3278 1099-145X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ldr.3462 |
container_title |
Land Degradation & Development |
container_volume |
31 |
container_issue |
4 |
container_start_page |
451 |
op_container_end_page |
462 |
_version_ |
1810471564196446208 |