A model of grease ice growth in small leads
A model of grease ice growth in small leads
复制标题
小引线中油脂冰生长的模型
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
Seelye Martin
中科院分区：
文献类型：
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作者：
Jane Bauer;Seelye Martin
当一股强劲的冷风吹过开放的极地导线时，冰以小晶体的形式生长，这些小晶体被风浪和风驱动的表面电流聚集在导线的顺风边缘。随着这个过程的继续，堆积起来的冰，称为“油脂冰”，逆风前进，直到整个铅被冰覆盖。在一个数值模型中的冰生长在一个水平的一维铅与风吹沿沿着其长度，我们使用的热通量从现有的配方，以确定冰的生产率。同样地，我们利用波浪场和表面流，这是风速和风的函数，来计算冰堆积深度和冰盖推进速率。由于这种冰的生长机制允许处于冰点的水与冷空气保持接触，因此保持了高的热量和盐通量。从这个模型预测的冰增长是一个数量级大于一维垂直增长。
When a strong, cold wind blows over open polar leads, ice grows in the form of small crystals which are herded downwind by both wind waves and a wind-driven surface current to pile up at the downwind edge of the lead. As this process continues, the piled-up ice, called ‘grease ice,’ advances upwind until the entire lead is ice covered. In a numerical model of ice growth in a horizontally one-dimensional lead with a wind blowing along its length we use the heat flux taken from existing formulations to determine the ice production rate. Similarly, we use the wave field and surface current, which are functions of wind speed and fetch, to calculate the ice pileup depth and the ice cover advance rate. Because this ice growth mechanism allows water at its freezing point to remain in contact with the cold air, high heat and salt fluxes are maintained. The ice growth predicted from this model is an order of magnitude greater than one-dimensional vertical growth.