首页> 外文期刊>Journal of Physical Oceanography >The Influence of Stratification on the Instabilities in an Idealized Two-Layer Ocean Model
【24h】

The Influence of Stratification on the Instabilities in an Idealized Two-Layer Ocean Model

机译:理想化两层海洋模型中分层对不稳定性的影响

获取原文
获取原文并翻译 | 示例
           

摘要

This work investigates the instability of a two-layer Bickley jet in the context of the rotating shallow water (RSW) model. This provides a general context in which the instability of oceanographic jets with simple stratification can be investigated. The three objectives of this work are as follows: First, the study investigates the morphology of unstable modes that can occur in this two-layer model. This is done by performing a linear stability analysis to investigate different types of flows both with and without vertical shear. Second, the authors study how the growth rates of the unstable modes are affected by changes in the stratification. Third, this study looks at the nonlinear evolution of some of these instabilities to determine how easy it is for nonprimary instabilities to develop. This is motivated by the fact that in the literature there have been many investigations that have found a multitude of unstable modes in this model, and it is not evident as to how easily they can be generated in oceanographic flows.
机译:这项工作调查在旋转浅水(RSW)模型的情况下两层Bickley射流的不稳定性。这提供了一个总体背景,在其中可以研究具有简单分层的海洋射流的不稳定性。这项工作的三个目标如下:首先,研究调查了在此两层模型中可能出现的不稳定模式的形态。这是通过执行线性稳定性分析以研究具有和不具有垂直剪切力的不同类型的流动来完成的。其次,作者研究了不稳定模式的增长率如何受到分层变化的影响。第三,本研究着眼于某些不稳定性的非线性演化,以确定非主要不稳定性的发展有多容易。这是由于以下事实:在文献中已经进行了许多研究,发现该模型中存在许多不稳定模式,而且关于在海洋流中如何容易地生成这些模式,尚不明确。

著录项

  • 来源
    《Journal of Physical Oceanography》 |2014年第10期|2718-2738|共21页
  • 作者

    Irwin R. L.; Poulin F. J.;

  • 作者单位

    Univ Waterloo, Dept Appl Math, Waterloo, ON N2L 3G1, Canada;

    Univ Waterloo, Dept Appl Math, Waterloo, ON N2L 3G1, Canada;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号