Ice interaction with Adams Island, winter 1982-83

A small island (200 m in diameter) is being used to study the interaction of the ice cover with the island and the response of the ice cover to the environmental driving forces. The environmental factors of wind, air temperature, current and tide were measured. Horizontal movements of the ice cover...

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Bibliographic Details
Main Authors: Frederking, R. M. W., Sayed, M., Wessels, E., Child, A. J., Bradford, D.
Format: Report
Language:English
Published: National Research Council of Canada. Division of Building Research 1985
Subjects:
ice
Online Access:https://dx.doi.org/10.4224/20375885
https://nrc-publications.canada.ca/eng/view/object/?id=a6c481c0-39e6-4c99-a102-e87afda88c3b
Description
Summary:A small island (200 m in diameter) is being used to study the interaction of the ice cover with the island and the response of the ice cover to the environmental driving forces. The environmental factors of wind, air temperature, current and tide were measured. Horizontal movements of the ice cover varied from 10 cm per day in March to 2 cm per day in June. The direction of movement did not correspond to wind or current direction. Average strain rates measured with small (0.3 m) gauge length strain meters and large (~100 m) triangular arrays were of the order of 10-⁹ s-¹. Direct measurements of stress and values calculated from the strain rate were of the order of 100 kPa. : L'objet de cette étude est d'examiner l'interaction du manteau glaciel avec une petite île de 200 m de diamètre, ainsi que le comportement du manteau glaciel en relation avec les forces environnementales. Les facteurs environnementaux tels que le vent, la température de l'air, les courants et les marées ont été mesurés. Les déplacements horizontaux du manteau glaciel ont varié entre 10 cm par jour en mars et 2 cm par jour en juin. La direction des déplacements ne correspondait pas à celle des vents et des courants. Les taux moyens de déformation mesurés avec des jauges de petite longueur (0,3 cm) et de grands systèmes triangulaires (de ±100 m) étaient de l'ordre de 10-⁹ s-¹. Les mesures directes de contrainte et les valeurs deduites du taux de déformation étaient de l'ordre de 100 kPa. : Reprinted from Proceedings of the 7th IAHR International Symposium on Ice: Hamburg, West Germany, 27-31 August 1984, Proceedings, v. III, p. 187-201. : Réimprimé de IAHR: 7th International Symposium on Ice Proceedings: Hamburg, West Germany, 27-31 August 1984, Proceedings, v. III, p. 187-201. : 7th IAHR International Symposium on Ice, August 27-31, 1984, Hamburg, West Germany