Geomorphological Observations of Permafrost and Ground-Ice Degradation on Deception and Livingston Islands, Maritime Antarctica
The Antarctic Peninsula is experiencing one of the fastest increases in mean annual air temperatures (ca. 2.5ºC in the last 50 years) on Earth. If the observed warming trend continues as indicated by climate models, the region could suffer widespread permafrost degradation. This paper presents field...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.527.6378 2023-05-15T13:42:41+02:00 Geomorphological Observations of Permafrost and Ground-Ice Degradation on Deception and Livingston Islands, Maritime Antarctica Gonçalo Vieira Enrique Serrano Miguel Ramos Stephan Gruber Christian Hauck Juan José Blanco The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.527.6378 http://www.geo.unizh.ch/~stgruber/pubs/vieira_2008-nicop.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.527.6378 http://www.geo.unizh.ch/~stgruber/pubs/vieira_2008-nicop.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.geo.unizh.ch/~stgruber/pubs/vieira_2008-nicop.pdf active layer Antarctic debris flow permafrost thermokarst text ftciteseerx 2016-01-08T10:25:40Z The Antarctic Peninsula is experiencing one of the fastest increases in mean annual air temperatures (ca. 2.5ºC in the last 50 years) on Earth. If the observed warming trend continues as indicated by climate models, the region could suffer widespread permafrost degradation. This paper presents field observations of geomorphological features linked to permafrost and ground-ice degradation at two study areas: northwest Hurd Peninsula (Livingston Island) and Deception Island along the Antarctic Peninsula. These observations include thermokarst features, debris flows, active-layer detachment slides, and rockfalls. The processes observed may be linked not only to an increase in temperature, but also to increased rainfall, which can trigger debris flows and other processes. On Deception Island some thermokarst features may be related to anomalous geothermal heat flux from volcanic activity. Text Antarc* Antarctic Antarctic Peninsula Antarctica Deception Island Ice Livingston Island permafrost Thermokarst Unknown Antarctic Antarctic Peninsula Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) Hurd ENVELOPE(-60.366,-60.366,-62.682,-62.682) Hurd peninsula ENVELOPE(-60.366,-60.366,-62.676,-62.676) Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) The Antarctic |
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Open Polar |
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ftciteseerx |
language |
English |
topic |
active layer Antarctic debris flow permafrost thermokarst |
spellingShingle |
active layer Antarctic debris flow permafrost thermokarst Gonçalo Vieira Enrique Serrano Miguel Ramos Stephan Gruber Christian Hauck Juan José Blanco Geomorphological Observations of Permafrost and Ground-Ice Degradation on Deception and Livingston Islands, Maritime Antarctica |
topic_facet |
active layer Antarctic debris flow permafrost thermokarst |
description |
The Antarctic Peninsula is experiencing one of the fastest increases in mean annual air temperatures (ca. 2.5ºC in the last 50 years) on Earth. If the observed warming trend continues as indicated by climate models, the region could suffer widespread permafrost degradation. This paper presents field observations of geomorphological features linked to permafrost and ground-ice degradation at two study areas: northwest Hurd Peninsula (Livingston Island) and Deception Island along the Antarctic Peninsula. These observations include thermokarst features, debris flows, active-layer detachment slides, and rockfalls. The processes observed may be linked not only to an increase in temperature, but also to increased rainfall, which can trigger debris flows and other processes. On Deception Island some thermokarst features may be related to anomalous geothermal heat flux from volcanic activity. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Gonçalo Vieira Enrique Serrano Miguel Ramos Stephan Gruber Christian Hauck Juan José Blanco |
author_facet |
Gonçalo Vieira Enrique Serrano Miguel Ramos Stephan Gruber Christian Hauck Juan José Blanco |
author_sort |
Gonçalo Vieira |
title |
Geomorphological Observations of Permafrost and Ground-Ice Degradation on Deception and Livingston Islands, Maritime Antarctica |
title_short |
Geomorphological Observations of Permafrost and Ground-Ice Degradation on Deception and Livingston Islands, Maritime Antarctica |
title_full |
Geomorphological Observations of Permafrost and Ground-Ice Degradation on Deception and Livingston Islands, Maritime Antarctica |
title_fullStr |
Geomorphological Observations of Permafrost and Ground-Ice Degradation on Deception and Livingston Islands, Maritime Antarctica |
title_full_unstemmed |
Geomorphological Observations of Permafrost and Ground-Ice Degradation on Deception and Livingston Islands, Maritime Antarctica |
title_sort |
geomorphological observations of permafrost and ground-ice degradation on deception and livingston islands, maritime antarctica |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.527.6378 http://www.geo.unizh.ch/~stgruber/pubs/vieira_2008-nicop.pdf |
long_lat |
ENVELOPE(-60.633,-60.633,-62.950,-62.950) ENVELOPE(-60.366,-60.366,-62.682,-62.682) ENVELOPE(-60.366,-60.366,-62.676,-62.676) ENVELOPE(-60.500,-60.500,-62.600,-62.600) |
geographic |
Antarctic Antarctic Peninsula Deception Island Hurd Hurd peninsula Livingston Island The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Deception Island Hurd Hurd peninsula Livingston Island The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Deception Island Ice Livingston Island permafrost Thermokarst |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Deception Island Ice Livingston Island permafrost Thermokarst |
op_source |
http://www.geo.unizh.ch/~stgruber/pubs/vieira_2008-nicop.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.527.6378 http://www.geo.unizh.ch/~stgruber/pubs/vieira_2008-nicop.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766171861955117056 |