Solidification of leads: approximate solutions of non-linear problem
Solidification of leads: approximate solutions of non-linear problem
复制标题
引线固化：非线性问题的近似解
DOI：
10.3189/172756406781811213
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发表时间：
2006
影响因子：
2.9
通讯作者：
I. Alexandrova
中科院分区：
文献类型：
--
作者：
D. Alexandrov;A. Malygin;I. Alexandrova
摘要我们给出了有关海冰生长和演化的新的分析结果。值得注意的是，薄薄的海冰在北冰洋表面热量和物质平衡中发挥着核心作用。为了描述这些平衡，我们分析了北冰洋表面从无冰向有冰过渡过程中通过气/海/冰界面获得的高分辨率温度数据。我们对现场数据的详细分析是基于糊状层的经典模型，对该模型进行了修改，以获得显式形式的解析解(例如，确定了冰的厚度和增长率、温度分布、传导和潜热通量)。此外，我们发现海冰的增长不是简单的时间的平方根函数。它取决于大气中的温度变化，介于观测期间发现的最高和最低温度的两个平方根时间函数之间。正在考虑的理论与观察结果很好地一致。
Abstract We present new analytical results relating to the growth and evolution of sea ice. It is noteworthy that thin sea ice plays a central role in the surface heat and mass balance of the Arctic Ocean. In order to describe these balances, we analyze highly resolved temperature data taken through the air/sea/ice interface during the transition from an ice-free to an ice-covered Arctic Ocean surface. Our detailed analysis of the field data is based on the classical model of a mushy layer, which is modified in order to obtain analytical solutions in explicit form (so, for example, ice thickness and growth rate, temperature distributions, conductive and latent heat fluxes are determined). Furthermore, we find that the sea-ice growth is not simply a square-root function of time. It depends on the temperature variations in the atmosphere and lies between two square-root functions of time for the maximum and minimum temperatures found during observations. The theory under consideration is in good agreement with observations.