Horizontal Movement of Fast Ice in the North Water Area

• Published in: Journal of Glaciology
• Main Authors: Ito, Hajime, Müller, Fritz
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 1977
• Subjects: Earth-Surface Processes; Journal of Glaciology; Sea ice
• Online Access: http://dx.doi.org/10.1017/s002214300002949x; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S002214300002949X

Abstract The understanding of the horizontal movement of fast ice is important for applied sea-ice mechanics. A case study, carried out in conjunction with a polynya known as North Water, is presented in this paper. The displacements of the fast-ire arches which separate the polynya from the surrounding ice-covered sea, were measured and found to be small. It is, therefore, confirmed that these arches prevent the influx of large quantities of sea ice into the polynya. The results are then explained in terms of the external forces (wind and current), the stress- strain situations and some physical characteristics (temperature and thickness) which were measured simultaneously.