Barotropic Dynamics Associated with Storm Tracks

9525977李这个项目将探索中纬度风暴路径动力学的重要方面，到目前为止，这些方面相对较少受到关注。了解风暴路径的动态对于改进扩展范围预报和短期气候至关重要。将探讨影响风暴路径形成和变化的三个大气流动特征：(1)背景正压变形的影响，(2)线性正压Rossby波导波的相关性，以及(3)中纬度天气尺度波的波浪破碎的作用。这些研究的结果将指导未来的瞬时涡动动量通量的参数化。这项研究将使用观测分析以及线性和非线性模型的层次结构。?？

9525977 Lee This project will explore important aspects of midlatitude storm track dynamics that heretofore have received relatively little attention. Understanding of the dynamics of storm tracks is critical to the improvement extended range forecasting and short-term climate. Three characteristics of atmospheric flow that affect storm track formation and variability will be explored: (1) the effects of background barotropic deformation, (2) the relevance of linear, barotropic Rossby wave guides, and (3) the role of wave breaking of midlatitude synoptic-scale waves. The results of these studies will guide future parameterizations of transient eddy momentum fluxes. The study will employed both observational analyses and a hierarchy of linear and non-linear models. ??