Climate and Terrain Characteristics Linked to Mud Ejection Occurrence in the Canadian High Arctic
Abstract Pressurised slurries of fine‐grained sediment expelled from the base of the active layer have been observed in recent years in the High Arctic. Such mud ejections , however, are poorly understood in terms of how exactly climate and landscape factors determine when and where they occur. Mud...
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crwiley:10.1002/ppp.1870 2024-06-23T07:49:36+00:00 Climate and Terrain Characteristics Linked to Mud Ejection Occurrence in the Canadian High Arctic Holloway, Jean E. Lamoureux, Scott F. Montross, Scott N. Lafrenière, Melissa J. 2015 http://dx.doi.org/10.1002/ppp.1870 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.1870 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.1870 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 27, issue 2, page 204-218 ISSN 1045-6740 1099-1530 journal-article 2015 crwiley https://doi.org/10.1002/ppp.1870 2024-06-04T06:39:20Z Abstract Pressurised slurries of fine‐grained sediment expelled from the base of the active layer have been observed in recent years in the High Arctic. Such mud ejections , however, are poorly understood in terms of how exactly climate and landscape factors determine when and where they occur. Mud ejections at the Cape Bounty Arctic Watershed Observatory, Melville Island, Nunavut, were systematically mapped in 2012 and 2013, and this was combined with observations of mud ejection activity and climatic measurements carried out since 2003. The mud ejections occur late in the melt season during warm years and closely following major rainfall events. High‐resolution satellite imagery demonstrates that mud ejections are associated with polar semi‐desert vegetative settings, flat or low‐sloping terrain and south‐facing slopes. The localised occurrence of mud ejections appears to be related to differential soil moisture retention. Copyright © 2015 John Wiley & Sons, Ltd. Article in Journal/Newspaper Arctic Nunavut Permafrost and Periglacial Processes Melville Island Wiley Online Library Arctic Nunavut Cape Bounty ENVELOPE(-109.542,-109.542,74.863,74.863) Permafrost and Periglacial Processes 27 2 204 218 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Pressurised slurries of fine‐grained sediment expelled from the base of the active layer have been observed in recent years in the High Arctic. Such mud ejections , however, are poorly understood in terms of how exactly climate and landscape factors determine when and where they occur. Mud ejections at the Cape Bounty Arctic Watershed Observatory, Melville Island, Nunavut, were systematically mapped in 2012 and 2013, and this was combined with observations of mud ejection activity and climatic measurements carried out since 2003. The mud ejections occur late in the melt season during warm years and closely following major rainfall events. High‐resolution satellite imagery demonstrates that mud ejections are associated with polar semi‐desert vegetative settings, flat or low‐sloping terrain and south‐facing slopes. The localised occurrence of mud ejections appears to be related to differential soil moisture retention. Copyright © 2015 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Holloway, Jean E. Lamoureux, Scott F. Montross, Scott N. Lafrenière, Melissa J. |
spellingShingle |
Holloway, Jean E. Lamoureux, Scott F. Montross, Scott N. Lafrenière, Melissa J. Climate and Terrain Characteristics Linked to Mud Ejection Occurrence in the Canadian High Arctic |
author_facet |
Holloway, Jean E. Lamoureux, Scott F. Montross, Scott N. Lafrenière, Melissa J. |
author_sort |
Holloway, Jean E. |
title |
Climate and Terrain Characteristics Linked to Mud Ejection Occurrence in the Canadian High Arctic |
title_short |
Climate and Terrain Characteristics Linked to Mud Ejection Occurrence in the Canadian High Arctic |
title_full |
Climate and Terrain Characteristics Linked to Mud Ejection Occurrence in the Canadian High Arctic |
title_fullStr |
Climate and Terrain Characteristics Linked to Mud Ejection Occurrence in the Canadian High Arctic |
title_full_unstemmed |
Climate and Terrain Characteristics Linked to Mud Ejection Occurrence in the Canadian High Arctic |
title_sort |
climate and terrain characteristics linked to mud ejection occurrence in the canadian high arctic |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1002/ppp.1870 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.1870 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.1870 |
long_lat |
ENVELOPE(-109.542,-109.542,74.863,74.863) |
geographic |
Arctic Nunavut Cape Bounty |
geographic_facet |
Arctic Nunavut Cape Bounty |
genre |
Arctic Nunavut Permafrost and Periglacial Processes Melville Island |
genre_facet |
Arctic Nunavut Permafrost and Periglacial Processes Melville Island |
op_source |
Permafrost and Periglacial Processes volume 27, issue 2, page 204-218 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.1870 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
27 |
container_issue |
2 |
container_start_page |
204 |
op_container_end_page |
218 |
_version_ |
1802640078693990400 |