Influence of climatic and terrain factors on ground temperatures at three locations in the permafrost region of Canada

Regular periodic measurements (at least monthly) of ground temperatures are being taken by the Division of Building Research, National Research Council of Canada, at three locations in northern Canada to assess the influence of climatic and terrain factors on permafrost. These are Thompson, Manitoba...

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Bibliographic Details
Main Author: Brown, R. J. E.
Format: Article in Journal/Newspaper
Language:English
Published: National Academy of Sciences 1973
Subjects:
Online Access:https://nrc-publications.canada.ca/eng/view/ft/?id=e699d55b-0d9c-4320-ba46-600a7c8474b7
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https://nrc-publications.canada.ca/fra/voir/objet/?id=e699d55b-0d9c-4320-ba46-600a7c8474b7
Description
Summary:Regular periodic measurements (at least monthly) of ground temperatures are being taken by the Division of Building Research, National Research Council of Canada, at three locations in northern Canada to assess the influence of climatic and terrain factors on permafrost. These are Thompson, Manitoba (55 degrees 48 minutes N, 97 degrees 52 minutes W), situated in the southern part of the discontinuous permafrost zone, Yellowknife, Northwest Territories (62 degrees 28 minutes N, 114 degrees 27 minutes W), in the northern part of the discontinuous permafrost zone, and Devon Island (76 degrees N), located in the Canadian Arctic Archipelago (Queen Elizabeth Islands) in the northern part of the continuous zone. Ground temperature measurements with thermocouple cables down to the 15-m depth in various types of terrain are being taken at these locations and analyzed to determine the range of mean annual ground temperatures that may exist at any one site in the permafrost region. La Division des recherches en bâtiment du Conseil national de recherches du Canada effectue des mesures périodiques (au moins mensuelles) de la température du sol en trois endroits du Nord canadien afin d'évaluer l'influence des conditions du climat et du terrain sur le pergélisol. Ces endroits sont Thompson au Manitoba (55 degrés 48 minutes N, 97 degrés 52 minutes O), dans la partie sud de la zone du pergélisol discontinu; Yellowknife dans les Territoires du Nord-Ouest ( 62 degrés 28 minutes N, 114 degrés 27 minutes O), dans la partie nord de la zone du pergélisol discontinu; et l'île Devon (76 degrés N), située dans l'Archipel arctique canadien (les îles Queen Elizabeth), dans la partie nord de la zone du pergélisol continu. On effectue en ces endroits des mesures de la température du sol au moyen de cables à couple thermoélectrique jusqu'à une profondeur de 15 m dans divers genres de terrain; on analyse ensuite ces mesures afin de déterminer l'écart des températures annuelles moyennes du sol pouvant exister en un endroit quelconque de la ...