ITR: Spatio-Temporal Complexity and Nonlinear Dynamics of Coastal Ocean Flows

ITR：沿海海洋流动的时空复杂性和非线性动力学roger M. Samelson, John S. Allen, Gary D. EgbertOregon State university沿海海洋流动的时空复杂性和非线性动力学将采用最近在低维系统非线性动力学方面的工作中采用的方法进行研究。本文将计算一个具有真实海底地形和振荡大气强迫的三维沿海海洋环流数值模式的稳定和不稳定周期或近似周期解，并分析其动力学。我们将使用Floquet理论、最优扰动和Lyapunov向量分析来研究这些解的线性稳定性和扰动生长特性。探讨了近海海洋环流综合预报方法的应用。这项研究有望对沿海海洋系统的非线性动力学和固有可预测性产生实质性的新见解。

ITR: Spatio-Temporal Complexity and Non-Linear Dynamics of Coastal Ocean FlowsRoger M. Samelson, John S. Allen, Gary D. EgbertOregon State UniversityThe spatio-temporal complexity and non-linear dynamics of coastal ocean flows will be studied using methods adapted from recent work on the non-linear dynamics of low-dimensional systems. Stable and unstable periodic or approximately periodic solutions of a three-dimensional, numerical coastal ocean circulation model with realistic bottom topography and oscillatory atmospheric forcing will be computed and their dynamics analyzed. The linear stability and disturbance growth properties of these solutions will be studied using Floquet theory, optimal disturbance, and Lyapunov vector analyses. Applications toward ensemble forecasting methods for coastal ocean circulation will be explored. This research is expected to yield substantial new insights into the nonlinear dynamics and inherent predictability of the coastal ocean system.