Dynamics of the Antarctic Seasonal Ice Zone

南极绕极流南侧的季节性海冰带(SIZ)是指海冰在厚度和范围上经历大规模季节性循环的区域。海冰的大小一直延伸到南极洲周围，正是在这里，海冰的制造和出口导致了盐水的排斥和水柱浮力的丧失。通过这种方式，冰冷的表层水被预处理，以便在南极洲的沿海冰架下和大陆坡面上随后的对流、混合和夹带。转化(浓缩)的水最终构成南极底层水，供给南大洋(SO)的低层单元，连接到深海。尽管大小在推动海洋-大气气候系统的经向环流方面很重要，但它的动态没有得到很好的观察、建模或理解。这项研究旨在模拟紧邻大陆架的强涡状区海冰形成季节循环的流体动力学。研究中心对南极这个对全球海洋环流和气候如此重要的系统的广泛影响。这项研究旨在将理论、观察和模型结合起来，以解决深海吸收热量的当代问题，并将为跨学科科学方面的研究生和博士后研究人员的教育提供一个具有挑战性的背景。许多人使用的开源海洋模型MITgcm的开发也将继续。

The seasonal sea ice zone (SIZ) on the southern flank of the Antarctic Circumpolar Current is the region in which sea ice undergoes a massive seasonal cycle in its thickness and extent. The SIZ extends all the way around Antarctica and it is here that sea-ice manufacture and export leads to brine rejection and loss of buoyancy in the water column. In this way cold surface waters are preconditioned for subsequent convection, mixing and entrainment in coastal polynyas, under ice shelves and over the continental slope of Antarctica. The transformed (densified) waters ultimately make up Antarctic Bottom Water feeding the lower cell of the Southern Ocean (SO), connecting to the abyssal oceans. Despite the importance of the SIZ in driving the meridional circulation of the ocean-atmosphere climate system, its dynamics is not well observed, modeled or understood. This study seeks to model the fluid dynamics of the seasonal cycle of sea-ice formation in a strongly eddying region next to the continental shelf.The broad impacts of the research center upon the Antarctic being a system of such great importance to global ocean circulation, and to climate. The study intends to bring together theory, observations and models to address the contemporary problem of uptake of heat to the abyssal ocean, and will provide a challenging context for the education of graduate students and postdoctoral researchers in interdisciplinary science. The development of MITgcm, an open source ocean model used by many, will also continue.