Permafrost distribution in the southern part of the discontinuous zone in Quebec and Labrador

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TypeArticle
Journal titleGéographie Physique et Quaternaire
ISSN0705-7199
Volume33
Issue3-4
Pages279289; # of pages: 11
SubjectPermafrost; Soils; Sol
AbstractThe distribution of permafrost in the southern part of the discontinuous zone in Quebec and Labrador is described. At the southern limit of this subzone islands of permafrost vary in extent from a few tens of square metres to several hectares and in thickness from a few centimetres to a metre or so. Northward to the middle of the discontinuous zone permafrost becomes increasingly widespread reaching a thickness exceeding 100 metres. Permafrost occurs mainly in peatlands, on some north facing slopes and above treeline on mountain summits. The relationships of permafrost distribution to climatic and terrain factors, including air temperature, vegetation, drainage and snow cover are discussed, the last being particularly important. The paper concludes with an analysis of some prominent air photo patterns.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierDBR-P-885
NRC number18001
77
NPARC number20338066
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Record identifierfe20e9b6-513a-4c39-87da-fb826fe7ff6b
Record created2012-07-19
Record modified2016-05-09
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