The thermal regime of a permafrost body at Mont du Lac des Cygnes, Quebec
A low peat plateau in the alpine forest–tundra at Mont du Lac des Cygnes, 100 km northeast of Québec City, contains a permafrost body 2 m thick. At an elevation of 960 m, this is the southernmost known occurrence of alpine permafrost in eastern Canada. The terrain over the permafrost is windblown an...
Published in: | Canadian Journal of Earth Sciences |
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Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1990
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Subjects: | |
Online Access: | http://dx.doi.org/10.1139/e90-067 http://www.nrcresearchpress.com/doi/pdf/10.1139/e90-067 |
Summary: | A low peat plateau in the alpine forest–tundra at Mont du Lac des Cygnes, 100 km northeast of Québec City, contains a permafrost body 2 m thick. At an elevation of 960 m, this is the southernmost known occurrence of alpine permafrost in eastern Canada. The terrain over the permafrost is windblown and bears a very thin and discontinuous snow cover. One year of continuous temperature records indicates that the mean annual air temperature at this site is about −1.3 °C. The permafrost remains at temperatures very near the freezing point for most of the year. |
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