Wave and Pancake Ice Interactions

本项目将理论模拟与波浪场中浮冰冻结的室内实验相结合。波浪和海冰相互作用是一个鲜为人知的研究领域，但对大尺度冰动力学和局域尺度边缘冰带的物理和生物过程具有重要意义。这项工作包括对计算机模拟数据的并行研究，以确定波浪特性与浮冰相互作用的速率和持续时间之间的关系，以及一系列波浪槽实验。这些实验将从简单的一维波传播发展到模拟浮冰的领域，以检查浮冰的运动和聚集，在冷冻波槽中进行二维实验，以研究实际的冻结过程，该过程被认为涉及到新产生的冰的压实和将单个所谓的“煎饼”焊接成连续更大的浮冰。当海洋表层接近海水的冰点时，这种过程在10厘米至1米尺度上运行，可以极快地向海延伸冰缘，对南极的气象和生物过程产生显著影响。

This project combines theoretical modeling with laboratory experiments of the freezing of ice floes in a wave field. Wave and sea ice interaction is a little known area of research with however strong implications for both the large-scale ice dynamics, and local-scale physical and biological processes in the marginal ice zone. The proposed work consists of parallel investigations of computer-simulated data to determine the the relation between wave characteristics and the rate and duration of floe interactions on the one hand, and a series of wave tank experiments on the other hand. These experiments will evolve from a simple one-dimensional wave propagating into a field of simulated ice floes to examine floe movement and clustering, to two-dimensional experiments in a refrigerated wave tank to study the actual freezing process which is believed to involve the compaction of newly generated frazil ice and the welding together of individual so-called "pancakes" into successively larger ice floes. When the surface layers of the ocean are close to the freezing point of sea water, such a process operating on the 10 cm to 1 m scale, can extend the ice edge seaward extremely rapidly, with significant effects on antarctic meteorological and biological processes.