Development of a rapid active layer detachment slide in the Fenghuoshan Mountains, Qinghai–Tibet Plateau
Abstract An active layer detachment slide (ALDS) in the interior portion of the Qinghai–Tibet Plateau (QTP) was investigated within 2 days of its formation on September 21, 2018. The ALDS developed on a relatively gentle slope (4.8° to 9°) at an elevation of 4,850 m above sea level (asl) and was abo...
Published in: | Permafrost and Periglacial Processes |
---|---|
Main Authors: | , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2022
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/ppp.2151 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.2151 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ppp.2151 |
id |
crwiley:10.1002/ppp.2151 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/ppp.2151 2024-09-15T18:11:41+00:00 Development of a rapid active layer detachment slide in the Fenghuoshan Mountains, Qinghai–Tibet Plateau Jiang, Guanli Gao, Siru Lewkowicz, Antoni G. Zhao, Hongting Pang, Shouji Wu, Qingbai National Natural Science Foundation of China 2022 http://dx.doi.org/10.1002/ppp.2151 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.2151 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ppp.2151 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 33, issue 3, page 298-309 ISSN 1045-6740 1099-1530 journal-article 2022 crwiley https://doi.org/10.1002/ppp.2151 2024-09-05T05:04:44Z Abstract An active layer detachment slide (ALDS) in the interior portion of the Qinghai–Tibet Plateau (QTP) was investigated within 2 days of its formation on September 21, 2018. The ALDS developed on a relatively gentle slope (4.8° to 9°) at an elevation of 4,850 m above sea level (asl) and was about 145 m long and 45 m wide, with a headscarp 2.2–2.5 m high. Analyses of meteorological data and soil temperatures indicated that it was probably triggered by a record thaw depth which intersected a layer with high ice content at the base of the active layer and in the top of the permafrost. Based on the time window, the minimum downslope velocity of the main slide mass was about 20 m/h which is higher than previously reported values. The ALDS ran into the embankment of the Qinghai–Tibet Railway (QTR) but did not damage the railbed. However, extensive rehabilitation of the slope was needed subsequent to the failure to clear the slide mass and as minor headscarp recession and thaw settlement continued on the slope. In this work, we describe this feature and the most likely mechanisms of development. Article in Journal/Newspaper Ice permafrost Permafrost and Periglacial Processes Wiley Online Library Permafrost and Periglacial Processes 33 3 298 309 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract An active layer detachment slide (ALDS) in the interior portion of the Qinghai–Tibet Plateau (QTP) was investigated within 2 days of its formation on September 21, 2018. The ALDS developed on a relatively gentle slope (4.8° to 9°) at an elevation of 4,850 m above sea level (asl) and was about 145 m long and 45 m wide, with a headscarp 2.2–2.5 m high. Analyses of meteorological data and soil temperatures indicated that it was probably triggered by a record thaw depth which intersected a layer with high ice content at the base of the active layer and in the top of the permafrost. Based on the time window, the minimum downslope velocity of the main slide mass was about 20 m/h which is higher than previously reported values. The ALDS ran into the embankment of the Qinghai–Tibet Railway (QTR) but did not damage the railbed. However, extensive rehabilitation of the slope was needed subsequent to the failure to clear the slide mass and as minor headscarp recession and thaw settlement continued on the slope. In this work, we describe this feature and the most likely mechanisms of development. |
author2 |
National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Jiang, Guanli Gao, Siru Lewkowicz, Antoni G. Zhao, Hongting Pang, Shouji Wu, Qingbai |
spellingShingle |
Jiang, Guanli Gao, Siru Lewkowicz, Antoni G. Zhao, Hongting Pang, Shouji Wu, Qingbai Development of a rapid active layer detachment slide in the Fenghuoshan Mountains, Qinghai–Tibet Plateau |
author_facet |
Jiang, Guanli Gao, Siru Lewkowicz, Antoni G. Zhao, Hongting Pang, Shouji Wu, Qingbai |
author_sort |
Jiang, Guanli |
title |
Development of a rapid active layer detachment slide in the Fenghuoshan Mountains, Qinghai–Tibet Plateau |
title_short |
Development of a rapid active layer detachment slide in the Fenghuoshan Mountains, Qinghai–Tibet Plateau |
title_full |
Development of a rapid active layer detachment slide in the Fenghuoshan Mountains, Qinghai–Tibet Plateau |
title_fullStr |
Development of a rapid active layer detachment slide in the Fenghuoshan Mountains, Qinghai–Tibet Plateau |
title_full_unstemmed |
Development of a rapid active layer detachment slide in the Fenghuoshan Mountains, Qinghai–Tibet Plateau |
title_sort |
development of a rapid active layer detachment slide in the fenghuoshan mountains, qinghai–tibet plateau |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/ppp.2151 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.2151 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ppp.2151 |
genre |
Ice permafrost Permafrost and Periglacial Processes |
genre_facet |
Ice permafrost Permafrost and Periglacial Processes |
op_source |
Permafrost and Periglacial Processes volume 33, issue 3, page 298-309 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.2151 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
33 |
container_issue |
3 |
container_start_page |
298 |
op_container_end_page |
309 |
_version_ |
1810449257341124608 |