The Role of Interannual Climate Variability in Controlling Solifluction Processes, Endalen, Svalbard
ABSTRACT A continuous record is presented of active layer processes at Endalen, Svalbard, over the period 2005–08. The monitored slope has a gradient of around 7° and in 2005, active layer depth was 94 cm, but this increased by around 14 cm over the next three years. The presence of an ice‐rich tran...
Published in: | Permafrost and Periglacial Processes |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2011
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/ppp.727 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.727 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.727 |
id |
crwiley:10.1002/ppp.727 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/ppp.727 2024-09-15T18:30:16+00:00 The Role of Interannual Climate Variability in Controlling Solifluction Processes, Endalen, Svalbard Harris, Charles Kern‐Luetschg, Martina Christiansen, Hanne H. Smith, Fraser 2011 http://dx.doi.org/10.1002/ppp.727 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.727 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.727 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 22, issue 3, page 239-253 ISSN 1045-6740 1099-1530 journal-article 2011 crwiley https://doi.org/10.1002/ppp.727 2024-08-27T04:27:37Z ABSTRACT A continuous record is presented of active layer processes at Endalen, Svalbard, over the period 2005–08. The monitored slope has a gradient of around 7° and in 2005, active layer depth was 94 cm, but this increased by around 14 cm over the next three years. The presence of an ice‐rich transient layer proved highly significant in determining the timing and profiles of solifluction movement. Frost heaving was 4.2 cm in 2005–06, 6.6 cm in 2006–07 and 3.2 cm in 2007–08, but thaw settlement exceeded frost heave in each year, giving a net total ground surface lowering of 6.2 cm. In winter, segregation ice was concentrated within the upper and lower active layer, leaving the central parts ice‐poor. During the summers of 2006 and 2008, thawing of the transient layer was associated with artesian pore pressures at 90 cm depth and basal soil shearing, but in 2007, when the thaw front failed to reach the ice rich basal zone, pore pressures during thaw were sub‐hydrostatic and no basal shearing was observed. Solifluction shear strain during thaw settlement resulted in downslope surface displacements of 2.3 cm in 2005–06, 1.2 cm in 2006–07 and 1 cm in 2007–08. Copyright © 2011 John Wiley & Sons, Ltd. Article in Journal/Newspaper Permafrost and Periglacial Processes Svalbard Wiley Online Library Permafrost and Periglacial Processes n/a n/a |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
ABSTRACT A continuous record is presented of active layer processes at Endalen, Svalbard, over the period 2005–08. The monitored slope has a gradient of around 7° and in 2005, active layer depth was 94 cm, but this increased by around 14 cm over the next three years. The presence of an ice‐rich transient layer proved highly significant in determining the timing and profiles of solifluction movement. Frost heaving was 4.2 cm in 2005–06, 6.6 cm in 2006–07 and 3.2 cm in 2007–08, but thaw settlement exceeded frost heave in each year, giving a net total ground surface lowering of 6.2 cm. In winter, segregation ice was concentrated within the upper and lower active layer, leaving the central parts ice‐poor. During the summers of 2006 and 2008, thawing of the transient layer was associated with artesian pore pressures at 90 cm depth and basal soil shearing, but in 2007, when the thaw front failed to reach the ice rich basal zone, pore pressures during thaw were sub‐hydrostatic and no basal shearing was observed. Solifluction shear strain during thaw settlement resulted in downslope surface displacements of 2.3 cm in 2005–06, 1.2 cm in 2006–07 and 1 cm in 2007–08. Copyright © 2011 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Harris, Charles Kern‐Luetschg, Martina Christiansen, Hanne H. Smith, Fraser |
spellingShingle |
Harris, Charles Kern‐Luetschg, Martina Christiansen, Hanne H. Smith, Fraser The Role of Interannual Climate Variability in Controlling Solifluction Processes, Endalen, Svalbard |
author_facet |
Harris, Charles Kern‐Luetschg, Martina Christiansen, Hanne H. Smith, Fraser |
author_sort |
Harris, Charles |
title |
The Role of Interannual Climate Variability in Controlling Solifluction Processes, Endalen, Svalbard |
title_short |
The Role of Interannual Climate Variability in Controlling Solifluction Processes, Endalen, Svalbard |
title_full |
The Role of Interannual Climate Variability in Controlling Solifluction Processes, Endalen, Svalbard |
title_fullStr |
The Role of Interannual Climate Variability in Controlling Solifluction Processes, Endalen, Svalbard |
title_full_unstemmed |
The Role of Interannual Climate Variability in Controlling Solifluction Processes, Endalen, Svalbard |
title_sort |
role of interannual climate variability in controlling solifluction processes, endalen, svalbard |
publisher |
Wiley |
publishDate |
2011 |
url |
http://dx.doi.org/10.1002/ppp.727 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.727 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.727 |
genre |
Permafrost and Periglacial Processes Svalbard |
genre_facet |
Permafrost and Periglacial Processes Svalbard |
op_source |
Permafrost and Periglacial Processes volume 22, issue 3, page 239-253 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.727 |
container_title |
Permafrost and Periglacial Processes |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1810471746651815936 |