| Résumé | Information on the morphology and properties of first-year ice ridges in the Sea of Okhotsk is required for design of offshore structures. Data have been compiled to provide a picture of Okhotsk sea ice ridges. The data include sail heights, keel depths, consolidated layer thickness, porosity and ridge width. The data from the Sea of Okhotsk are compared with data for ridges from the Beaufort Sea. Okhotsk ice ridges were found to have similar proportions to Beaufort ridges, i.e. ratio of keel depth to sail height is on average 5:1, average sail porosity 35%, and average keel porosity 20%. Sakhalin ridges are smaller than Beaufort ridges, however they are proportionately 25 % wider than Beaufort ridges. |
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