Modeling the Total Transport of the Antarctic Circumpolar Current using Realistic Wind Fields

最近南极洲高质量数据的增加 随着计算机技术的进步， 建立高分辨率数值模式的可能性 可以用真实的风来推动， 意见。一组这样的数据是FGGE（第一全球农业研究计划） 试验）风场每天在1.875x网格上估计两次 通过1.875x和德雷克通道上的电流测量， 德雷克79实验两个数据集的时间跨度相同 一年以上（1979年）。澳大利亚统计局 气象地面气压分析和FGGE地面 漂移器给出了可以由模型使用的附加数据集。 研究者建议使用三种模型来增加 复杂性垂直积分准地转模式， 两层准地转模式和三层原始模式 方程模型这些模型将用于确定 南极绕极基本动力平衡 电流和循环的频率响应 强风

The recent increase in high quality data for the Antarctic Circumpolar Current with advances in computer technology allows the possibility of constructing high resolution numerical models that can be forced with real winds and verified against observations. One such set of data is the FGGE (First GARP Global Experiment) wind fields estimated twice daily on a grid of 1.875x by 1.875x and the current measurement on the Drake passage made during the DRAKE 79 experiment. Both datasets span the same time interval for more than one year (1979). The Australian Bureau of Meteorology surface pressure analysis and the FGGE surface drifters give additional datasets that can be used by the models. The investigator proposes to use three models of increasing complexity. A verticclly integrated, quasi-geostrophic model, a two-layer, quasi-geostrophic model and a three-level primitive equation model. These models will be used to determine the fundamental dynamical balances for the Antarctic Circumpolar Current and the frequency response of the circulation to the forcing winds.