A Century (1910–2008) of Change in a Collapsing Pingo, Parry Peninsula, Western Arctic Coast, Canada
An isolated, eroding pingo at the southern end of Parry Peninsula, N.W.T., Canada was first photographed in about 1910. The photograph allows examination of a century of landform change. Since 1910, the pingo crater pond has drained, the north side of the pingo has become well vegetated, the serrate...
Published in: | Permafrost and Periglacial Processes |
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Online Access: | https://doi.org/10.1002/ppp.723 |
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ftrepec:oai:RePEc:wly:perpro:v:22:y:2011:i:3:p:266-272 2023-05-15T14:52:36+02:00 A Century (1910–2008) of Change in a Collapsing Pingo, Parry Peninsula, Western Arctic Coast, Canada J. R. Mackay C. R. Burn https://doi.org/10.1002/ppp.723 unknown https://doi.org/10.1002/ppp.723 article ftrepec https://doi.org/10.1002/ppp.723 2020-12-04T13:31:25Z An isolated, eroding pingo at the southern end of Parry Peninsula, N.W.T., Canada was first photographed in about 1910. The photograph allows examination of a century of landform change. Since 1910, the pingo crater pond has drained, the north side of the pingo has become well vegetated, the serrated crest has been smoothed, and the lake bottom has become colonised by willows and other vegetation. The height of the feature was over 100 ft (30 m) in 1910 and is now about 50 ft (15–17 m). The erosion of the pingo has probably been dominated by the strong southerly katabatic winds in the area, as the vegetation on the south side of the pingo is poorly developed in comparison with the north side. A secondary cause of erosion has been the numerous excavations by ground squirrels (Spermophilus parryii) and foxes (Vulpes lagopus) on the slopes of the pingo. It is unusual to detect change of collapsed pingos near the western Arctic coast of Canada unless ground ice is exposed in the core or on the sides of the pingo. The increases since 1996 in height and cover of willows are the first record of such change from western Arctic Canada. Copyright © 2011 John Wiley & Sons, Ltd. Article in Journal/Newspaper Arctic Parry Peninsula Vulpes lagopus RePEc (Research Papers in Economics) Arctic Canada Parry ENVELOPE(-62.417,-62.417,-64.283,-64.283) Parry Peninsula ENVELOPE(-30.000,-30.000,-79.500,-79.500) Permafrost and Periglacial Processes n/a n/a |
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Open Polar |
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RePEc (Research Papers in Economics) |
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ftrepec |
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unknown |
description |
An isolated, eroding pingo at the southern end of Parry Peninsula, N.W.T., Canada was first photographed in about 1910. The photograph allows examination of a century of landform change. Since 1910, the pingo crater pond has drained, the north side of the pingo has become well vegetated, the serrated crest has been smoothed, and the lake bottom has become colonised by willows and other vegetation. The height of the feature was over 100 ft (30 m) in 1910 and is now about 50 ft (15–17 m). The erosion of the pingo has probably been dominated by the strong southerly katabatic winds in the area, as the vegetation on the south side of the pingo is poorly developed in comparison with the north side. A secondary cause of erosion has been the numerous excavations by ground squirrels (Spermophilus parryii) and foxes (Vulpes lagopus) on the slopes of the pingo. It is unusual to detect change of collapsed pingos near the western Arctic coast of Canada unless ground ice is exposed in the core or on the sides of the pingo. The increases since 1996 in height and cover of willows are the first record of such change from western Arctic Canada. Copyright © 2011 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
J. R. Mackay C. R. Burn |
spellingShingle |
J. R. Mackay C. R. Burn A Century (1910–2008) of Change in a Collapsing Pingo, Parry Peninsula, Western Arctic Coast, Canada |
author_facet |
J. R. Mackay C. R. Burn |
author_sort |
J. R. Mackay |
title |
A Century (1910–2008) of Change in a Collapsing Pingo, Parry Peninsula, Western Arctic Coast, Canada |
title_short |
A Century (1910–2008) of Change in a Collapsing Pingo, Parry Peninsula, Western Arctic Coast, Canada |
title_full |
A Century (1910–2008) of Change in a Collapsing Pingo, Parry Peninsula, Western Arctic Coast, Canada |
title_fullStr |
A Century (1910–2008) of Change in a Collapsing Pingo, Parry Peninsula, Western Arctic Coast, Canada |
title_full_unstemmed |
A Century (1910–2008) of Change in a Collapsing Pingo, Parry Peninsula, Western Arctic Coast, Canada |
title_sort |
century (1910–2008) of change in a collapsing pingo, parry peninsula, western arctic coast, canada |
url |
https://doi.org/10.1002/ppp.723 |
long_lat |
ENVELOPE(-62.417,-62.417,-64.283,-64.283) ENVELOPE(-30.000,-30.000,-79.500,-79.500) |
geographic |
Arctic Canada Parry Parry Peninsula |
geographic_facet |
Arctic Canada Parry Parry Peninsula |
genre |
Arctic Parry Peninsula Vulpes lagopus |
genre_facet |
Arctic Parry Peninsula Vulpes lagopus |
op_relation |
https://doi.org/10.1002/ppp.723 |
op_doi |
https://doi.org/10.1002/ppp.723 |
container_title |
Permafrost and Periglacial Processes |
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n/a |
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1766323834809483264 |