Observations of aeolian transport and niveo‐aeolian deposition at three lowland sites, Canadian arctic archipelago
Abstract Observations of wind action were made in the late winter, spring and summer at three lowland sites located on Banks Island (1977‐79), Melville Island (1986‐87) and Ellesmere Island (1989‐90). Erosion pin measurements in north‐central Banks Island showed minimal activity on interfluves and t...
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crwiley:10.1002/ppp.3430020304 2024-06-02T07:59:57+00:00 Observations of aeolian transport and niveo‐aeolian deposition at three lowland sites, Canadian arctic archipelago Lewkowicz, Antoni G. Young, Kathy L. 1991 http://dx.doi.org/10.1002/ppp.3430020304 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.3430020304 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.3430020304 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 2, issue 3, page 197-210 ISSN 1045-6740 1099-1530 journal-article 1991 crwiley https://doi.org/10.1002/ppp.3430020304 2024-05-03T11:11:58Z Abstract Observations of wind action were made in the late winter, spring and summer at three lowland sites located on Banks Island (1977‐79), Melville Island (1986‐87) and Ellesmere Island (1989‐90). Erosion pin measurements in north‐central Banks Island showed minimal activity on interfluves and the highest rates at a blowout site in an unvegetated sand plain. The timing of aeolian activity during the year depended on the site characteristics. Where the snow cover was incomplete in winter, either because a rugged microtopography resulted in terrain elements protruding above the surface of the snow or because sublimation of snow exposed the ground surface, aeolian transport could occur year‐round. In areas with a flatter microtopography, summer transport took place but deflation was negligible over the winter and niveo‐aeolian deposition was confined to the autumn and spring when the snow cover was patchy. Windblown sediment became spatially concentrated by denivation at some sites and was deposited on slopes as fans or layers up to 8 cm thick. In the years this occurred, the rate of deposition was greater than sediment removal by wash or other processes and, at least in the short term, the form of the slope was changed. Article in Journal/Newspaper Arctic Archipelago Arctic Banks Island Canadian Arctic Archipelago Ellesmere Island Permafrost and Periglacial Processes Melville Island Wiley Online Library Arctic Canadian Arctic Archipelago Ellesmere Island Permafrost and Periglacial Processes 2 3 197 210 |
institution |
Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Observations of wind action were made in the late winter, spring and summer at three lowland sites located on Banks Island (1977‐79), Melville Island (1986‐87) and Ellesmere Island (1989‐90). Erosion pin measurements in north‐central Banks Island showed minimal activity on interfluves and the highest rates at a blowout site in an unvegetated sand plain. The timing of aeolian activity during the year depended on the site characteristics. Where the snow cover was incomplete in winter, either because a rugged microtopography resulted in terrain elements protruding above the surface of the snow or because sublimation of snow exposed the ground surface, aeolian transport could occur year‐round. In areas with a flatter microtopography, summer transport took place but deflation was negligible over the winter and niveo‐aeolian deposition was confined to the autumn and spring when the snow cover was patchy. Windblown sediment became spatially concentrated by denivation at some sites and was deposited on slopes as fans or layers up to 8 cm thick. In the years this occurred, the rate of deposition was greater than sediment removal by wash or other processes and, at least in the short term, the form of the slope was changed. |
format |
Article in Journal/Newspaper |
author |
Lewkowicz, Antoni G. Young, Kathy L. |
spellingShingle |
Lewkowicz, Antoni G. Young, Kathy L. Observations of aeolian transport and niveo‐aeolian deposition at three lowland sites, Canadian arctic archipelago |
author_facet |
Lewkowicz, Antoni G. Young, Kathy L. |
author_sort |
Lewkowicz, Antoni G. |
title |
Observations of aeolian transport and niveo‐aeolian deposition at three lowland sites, Canadian arctic archipelago |
title_short |
Observations of aeolian transport and niveo‐aeolian deposition at three lowland sites, Canadian arctic archipelago |
title_full |
Observations of aeolian transport and niveo‐aeolian deposition at three lowland sites, Canadian arctic archipelago |
title_fullStr |
Observations of aeolian transport and niveo‐aeolian deposition at three lowland sites, Canadian arctic archipelago |
title_full_unstemmed |
Observations of aeolian transport and niveo‐aeolian deposition at three lowland sites, Canadian arctic archipelago |
title_sort |
observations of aeolian transport and niveo‐aeolian deposition at three lowland sites, canadian arctic archipelago |
publisher |
Wiley |
publishDate |
1991 |
url |
http://dx.doi.org/10.1002/ppp.3430020304 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.3430020304 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.3430020304 |
geographic |
Arctic Canadian Arctic Archipelago Ellesmere Island |
geographic_facet |
Arctic Canadian Arctic Archipelago Ellesmere Island |
genre |
Arctic Archipelago Arctic Banks Island Canadian Arctic Archipelago Ellesmere Island Permafrost and Periglacial Processes Melville Island |
genre_facet |
Arctic Archipelago Arctic Banks Island Canadian Arctic Archipelago Ellesmere Island Permafrost and Periglacial Processes Melville Island |
op_source |
Permafrost and Periglacial Processes volume 2, issue 3, page 197-210 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.3430020304 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
2 |
container_issue |
3 |
container_start_page |
197 |
op_container_end_page |
210 |
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1800743994048643072 |