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Original Articles

Measurement of soil water contents and frozen soil depth during a thaw using time‐domain reflectometry

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Pages 299-311 | Received 16 Aug 1982, Published online: 15 Nov 2010
 

Abstract

The results of a field test of time‐domain reflectometry (TDR) to measure apparent liquid soil water contents and to locate the unfrozen‐frozen interface during thawing conditions is presented. The apparent liquid water content was observed in the fall and through a late winter thaw on two sand sites, one with a natural snow cover and the other with snow removed throughout the winter. Temperatures were monitored at intervals throughout the profile. The results indicate that TDR provides a method for monitoring apparent liquid water content andfreeze‐thaw processes.

Résumé

On présente les résultats obtenus des tests de site, de la réflectométrie à domaine temporel (RDT) pour mesurer la teneur apparente en eau liquide du sol et pour déterminer l'interface de la couche gel/ dégel au cours des conditions de dégel. La teneur apparente en eau liquide a été observée au cours de l'automne et au cours d'un dégel tardif hivernal à deux sites sablonneux, l'un avec une converture nivale naturelle, l'autre avec la neige déblayée au cours de l'hiver. On ajurveillé les températures du profil à plusieurs intervalles au cours de l'hiver. Les résultats démontrent que la RDT serait une méthode adéquate pour la surveillance de la teneur apparente en eau liquide et des processus de gel et dégél.

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