Studies of Circumpolar Currents

0221369马歇尔南极绕极流（ACC）的简单理论模型将开发和应用，以进一步我们的全球海洋环流的这一中心组成部分的理解。剩余平均值的形式主义将被利用，试图发展一个理论的分层和翻转流通的ACC和它如何取决于涡流传输过程和模式的风和海气通量作用在其表面。 具体而言，将充分探索纬向平均剩余平均问题的解，以研究控制ACC纬向翻转和内部分层模式的过程。然后将这些解扩展到三维，以探索区域模式的海气相互作用和地形相互作用对ACC动力学的作用：这将通过三维中的剩余平均方程的数值解来完成。最后，理论模型将根据更现实的模型和观察进行诊断。该提案的智力主旨是，它解决了对我们理解海洋环流至关重要的问题：海洋地转涡旋场在形成ACC大规模环流中的作用和代表性，它试图建立一个简单的概念框架，如果成功，可以为绕极流的观测和模型提供参考点。该研究具有广泛的影响力，因为ACC是一个对全球海洋和全球气候非常重要的系统，被认为是冰川-间冰期循环，人为CO2吸收和全球地球化学循环的主要参与者。

0221369 Marshall Simple theoretical models of the Antarctic Circumpolar Current (ACC) will developed and applied to further our understanding of this central component of the global ocean circulation. The formalism of the residual mean will be exploited in an attempt to develop a theory for the stratification and overturning circulation of the ACC and how it depends on eddy transfer processes and the patterns of wind and air-sea flux acting at its surface. Specifically, solutions of the zonal-average residual mean problem will be fully explored to investigate processes that control the pattern of meridional overturning and interior stratification of the ACC. Those solutions will then be extended to 3-dimensions to explore the role of regional patterns of air-sea interaction and topographic interaction on ACC dynamics: this will be done by numerical solution of the residual mean equations in 3-dimensions. Finally, the theoretical model will diagnosed in terms of more realistic models and observations. The intellectual thrust of the proposal is that it addresses issues that are fundamental to our understanding of the general circulation of the ocean: the role and representation of the ocean's geostrophic eddy field in shaping the large-scale circulation of the ACC. It seeks to develop a simple conceptual framework that, if successful, could provide a reference point for observation and models of circumpolar flow. The study has the potential for broad impact because the ACC is a system of great importance to the global ocean and to global climate, is thought to be major player in glacial-interglacial cycles, uptake of anthropogenic CO2 and global biogeochemical cycles.