Morphometry and Internal Structure of Ice Ridges in the Kara and Laptev Seas

摘要

The article presents an analysis of the expedition results on morphometry and internal structure of ice ridges. A regression equation connecting the consolidated layer (CL) thickness of ice ridges with the sum of degree-days of frost is proposed. The problem of the CL distribution in the ice ridge is considered. Dependence of the CL thickness change on the external ice ridge parameters (sail, keel, total thickness) is determined. It is shown that the largest CL thickness is observed in the zone, combining the maximum sail and keel. The averaged porosity distribution by vertical is derived and main regularities of its change inside the ice ridge are shown.