A Century (1910–2008) of Change in a Collapsing Pingo, Parry Peninsula, Western Arctic Coast, Canada
ABSTRACT 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, th...
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crwiley:10.1002/ppp.723 2024-09-15T18:29:09+00:00 A Century (1910–2008) of Change in a Collapsing Pingo, Parry Peninsula, Western Arctic Coast, Canada Mackay, J. R. Burn, C. R. 2011 http://dx.doi.org/10.1002/ppp.723 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.723 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.723 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 22, issue 3, page 266-272 ISSN 1045-6740 1099-1530 journal-article 2011 crwiley https://doi.org/10.1002/ppp.723 2024-07-09T04:14:57Z ABSTRACT 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 Parry Peninsula Permafrost and Periglacial Processes Vulpes lagopus Wiley Online Library Permafrost and Periglacial Processes n/a n/a |
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Wiley Online Library |
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English |
description |
ABSTRACT 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 |
Mackay, J. R. Burn, C. R. |
spellingShingle |
Mackay, J. R. Burn, C. R. A Century (1910–2008) of Change in a Collapsing Pingo, Parry Peninsula, Western Arctic Coast, Canada |
author_facet |
Mackay, J. R. Burn, C. R. |
author_sort |
Mackay, J. R. |
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 |
publisher |
Wiley |
publishDate |
2011 |
url |
http://dx.doi.org/10.1002/ppp.723 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.723 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.723 |
genre |
Parry Peninsula Permafrost and Periglacial Processes Vulpes lagopus |
genre_facet |
Parry Peninsula Permafrost and Periglacial Processes Vulpes lagopus |
op_source |
Permafrost and Periglacial Processes volume 22, issue 3, page 266-272 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.723 |
container_title |
Permafrost and Periglacial Processes |
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1810470566053806080 |