An analysis of the shapes of sea ice ridges

• Published in: Cold Regions Science and Technology
• Main Authors: Timco, G. W., Burden, R. P.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 1998
• Subjects: keel; morphology; ridges; sail; sea ice; shape; Beaufort Sea; Sea ice
• Online Access: https://doi.org/10.1016/S0165-232X(96)00017-1; https://nrc-publications.canada.ca/eng/view/object/?id=a966c0eb-4b73-45d2-88fc-c81560beba10; https://nrc-publications.canada.ca/fra/voir/objet/?id=a966c0eb-4b73-45d2-88fc-c81560beba10

An analysis has been made of the salient features of 112 first-year and 64 multi-year sea ice ridges. Based on this information, the important characteristics of the ridges have been related through simple equations. In particular, the ratio of the keel-depth to sail-height was found to be 4.4 for first-year ridges, and 3.3 for multi-year ridges; the ratio of the keel-area to sail-area was 8.0 for first-year ridges and 8.8 for multi-year ridges. Also, for first-year ridges, the ratio of the keel-width to sail-height was approximately 15, and the ratio of the keel-width to keel-depth was 3.9. An analysis of the sail and keel angles indicates a distribution of values with an average sail angle of 21� for temperate ridges, and 33� for ridges in the Beaufort Sea. In this paper, the results of this analysis are described, and the important ridge characteristics are discussed. NRC publication: Yes