Ice pressures and behaviour at Adams Island, winter 1983/1984
As a continuation of an ongoing project, measurements of environmental conditions and ice cover responses were made around Adams Island over the winter of 1983/1984. These included current, tide, speed and direction of wind, air temperature, and thickness, temperature, and salinity of the ice. Wind...
| 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=bca510ee-5f3a-48cf-bae1-9668fd8a5d33 https://nrc-publications.canada.ca/eng/view/object/?id=bca510ee-5f3a-48cf-bae1-9668fd8a5d33 https://nrc-publications.canada.ca/fra/voir/objet/?id=bca510ee-5f3a-48cf-bae1-9668fd8a5d33 |
| Summary: | As a continuation of an ongoing project, measurements of environmental conditions and ice cover responses were made around Adams Island over the winter of 1983/1984. These included current, tide, speed and direction of wind, air temperature, and thickness, temperature, and salinity of the ice. Wind profiles were measured over the ice surface; from these, drag coefficients of 0.001-0.005 were calculated. Horizontal movement rates of the ice cover varied from 20 to 300 mm/day. No direct correlation was found between ice cover movement and the wind and current measurements. In situ ice pressures measured around the island averaged 250 kPa. Dans le cadre d'un projet déjà en cours, les conditions environnementales et le comportement du manteau glacial qutour de l'île Adams ont été mesurés au cours de l'hiver 1983-1984. Les éléments suivants ont fait l'objet de mesures : courants, marées, vitesse et direction des vents, température de l'air et épaisseur, température et salinité de la glace. Des profils de vent ont été mesurés à la surface de la glace; les coefficients de traînée calculés à partir de ces données variaient entre 0.001 et 0.005. Les vitesses de déplacement horizontal du manteau glacial variaient entre 20 et 300 mm/jour. Aucune corrélation directe n'a pu être établie entre le déplacement du manteau glacial et les mesures des vents et des courants. Les pressions glacialles mesurées autour de l'île se situaient en moyenne à 250 kPa. Peer reviewed: Yes NRC publication: Yes |
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