Ice cover deformations at Adams Island, winter 1982-1983
Measurements of horizontal movements of the ice cover near Adams Island, March to June l983, and in Eclipse Sound, December l982 to June 1983, indicate no apparent coupling between movement direction and wind or current. Average strain rates in the plane of the ice cover were 10 -10 s -1, with a max...
Main Authors: | , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
1986
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Subjects: | |
Online Access: | https://nrc-publications.canada.ca/eng/view/ft/?id=5c61aee6-7ecd-4fe3-8f91-699d92bb5af8 https://nrc-publications.canada.ca/eng/view/object/?id=5c61aee6-7ecd-4fe3-8f91-699d92bb5af8 https://nrc-publications.canada.ca/fra/voir/objet/?id=5c61aee6-7ecd-4fe3-8f91-699d92bb5af8 |
Summary: | Measurements of horizontal movements of the ice cover near Adams Island, March to June l983, and in Eclipse Sound, December l982 to June 1983, indicate no apparent coupling between movement direction and wind or current. Average strain rates in the plane of the ice cover were 10 -10 s -1, with a maximum of 10 -8 s -1. Similar strain rate values were obtained on Eclipse Sound. Movement rates at Eclipse Sound were of the same magnitude as those at Adams Island, but the direction was quite different. Maximum calculated and measured ice pressures were 500 and 140 kPa, respectively. Des mesures de mouvements horizontaux de couvert de glace près d'Adams Island, de mars à juin 1983, et dans Eclipse Sound, de décembre 1982 à juin 1983, indiquent qu'il n'y a pas de couplage apparent entre la direction du mouvement et celles du vent et du courant. Les vitesses moyennes de déformation dans le plan du couvert de glace sont 10 -10 s -1, avec une valeur maximum de 10 -8 s -1. Des valeurs semblables furent obtenues dans Eclipse Sound. Les vitesses du mouvement à Eclipse Sound étaient de la même grandeur que celles à Adams Island, mais la direction était très différente. Les valeurs maximum de pression de glace calculées et mesurées étaient de 500 et 140 kPa respectivement. Peer reviewed: Yes NRC publication: Yes |
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