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Estimates of Sea Ice Mechanical Properties in the Kara Sea

机译：卡拉海中海冰机械性能估计

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摘要

On the basis of available public data, an approximate theoretical approach for characterizing the Arctic sea ice engineering properties is explored and discussed in the Kara Sea. The corrected ERA-Interim sea ice thickness and ORAP5 sea ice temperature database are selected as the basic ice physical parameters. The formulas recommended by ISO 19906 are chosen as the estimation criteria for the ice mechanical properties. The generalized extreme value theory is used to analyze the ice extreme statistics. Specifically, the typical mechanical properties including compressive strength, flexural strength, shear strength and elastic modulus are comprehensively studied. The results reveal that all the mechanical properties show higher levels in the northeastern zone than in the southwestern zone, with the heaviest ice regime around the southwestern Severnaya Zemlya. In addition, an uncertainty analysis is provided. Compared to the published measurements, the snowless flexural strength values obtained are relatively conservative. Additionally, the shear equation in ISO 19906 should be pre-corrected before practical application.
机译：在可用的公共数据的基础上，探讨了北极海冰工程物业的近似理论方法，并在卡拉海讨论。选择纠正的ERA-临时海冰厚度和orap5海冰温度数据库作为基本冰物理参数。选择ISO 19906推荐的公式作为冰机械性能的估计标准。广义极值理论用于分析冰极端统计数据。具体地，典型地研究包括抗压强度，弯曲强度，剪切强度和弹性模量的典型机械性能。结果表明，所有机械性能都显示出东北地区的较高水平，而不是西南区，西南部Zemlya西南部最重的冰制度。此外，提供了不确定性分析。与已发表的测量相比，所获得的无雪弯曲强度值相对保守。另外，在实际应用之前，ISO 19906中的剪切方程应预先校正。

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