Rockglacier acceleration in the Turtmann valley (Swiss Alps) - probable controls
Temporal variations in mountain permafrost creep are discussed within a regional study on rockglacier1 kinematics. On all investigated active rockglaciers in the Turtmann valley, a distinct acceleration of horizontal velocities has been recorded since the early 1990s. Since variations in rockglacier...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.558.3374 2023-05-15T17:56:56+02:00 Rockglacier acceleration in the Turtmann valley (Swiss Alps) - probable controls Isabelle Roer Richard Dikau The Pennsylvania State University CiteSeerX Archives 2005 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.558.3374 http://folk.uio.no/kaeaeb/publications/ngt_roer.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.558.3374 http://folk.uio.no/kaeaeb/publications/ngt_roer.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://folk.uio.no/kaeaeb/publications/ngt_roer.pdf acceleration climate change dynamics rockglacier Swiss Alps text 2005 ftciteseerx 2016-01-08T11:53:05Z Temporal variations in mountain permafrost creep are discussed within a regional study on rockglacier1 kinematics. On all investigated active rockglaciers in the Turtmann valley, a distinct acceleration of horizontal velocities has been recorded since the early 1990s. Since variations in rockglacier movement are mainly discussed in the context of temperature fluctuations in the current literature, the link between surface velocities and temperature development is investigated at two different scales. The signal of rockglacier speed-up in the period 1993–2001 (here termed as ‘regional signal ’ since all rockglaciers show this beha-viour) fits well with the general increase in air temperature recorded during the 1990s. On the local scale, the pattern of BTS values coincides well with the surface-velocity pattern, but in areas with high velocities the BTS temperatures are clearly below 3C. Thus, marginal permafrost occurrence is not indicated in this data and the high velocities probably do not result directly from ‘warming ’ permafrost conditions, as is suggested by other studies. Text permafrost Unknown |
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language |
English |
topic |
acceleration climate change dynamics rockglacier Swiss Alps |
spellingShingle |
acceleration climate change dynamics rockglacier Swiss Alps Isabelle Roer Richard Dikau Rockglacier acceleration in the Turtmann valley (Swiss Alps) - probable controls |
topic_facet |
acceleration climate change dynamics rockglacier Swiss Alps |
description |
Temporal variations in mountain permafrost creep are discussed within a regional study on rockglacier1 kinematics. On all investigated active rockglaciers in the Turtmann valley, a distinct acceleration of horizontal velocities has been recorded since the early 1990s. Since variations in rockglacier movement are mainly discussed in the context of temperature fluctuations in the current literature, the link between surface velocities and temperature development is investigated at two different scales. The signal of rockglacier speed-up in the period 1993–2001 (here termed as ‘regional signal ’ since all rockglaciers show this beha-viour) fits well with the general increase in air temperature recorded during the 1990s. On the local scale, the pattern of BTS values coincides well with the surface-velocity pattern, but in areas with high velocities the BTS temperatures are clearly below 3C. Thus, marginal permafrost occurrence is not indicated in this data and the high velocities probably do not result directly from ‘warming ’ permafrost conditions, as is suggested by other studies. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Isabelle Roer Richard Dikau |
author_facet |
Isabelle Roer Richard Dikau |
author_sort |
Isabelle Roer |
title |
Rockglacier acceleration in the Turtmann valley (Swiss Alps) - probable controls |
title_short |
Rockglacier acceleration in the Turtmann valley (Swiss Alps) - probable controls |
title_full |
Rockglacier acceleration in the Turtmann valley (Swiss Alps) - probable controls |
title_fullStr |
Rockglacier acceleration in the Turtmann valley (Swiss Alps) - probable controls |
title_full_unstemmed |
Rockglacier acceleration in the Turtmann valley (Swiss Alps) - probable controls |
title_sort |
rockglacier acceleration in the turtmann valley (swiss alps) - probable controls |
publishDate |
2005 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.558.3374 http://folk.uio.no/kaeaeb/publications/ngt_roer.pdf |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
http://folk.uio.no/kaeaeb/publications/ngt_roer.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.558.3374 http://folk.uio.no/kaeaeb/publications/ngt_roer.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766165257719382016 |