The Structure and Evolution of Cyclones

该项目的目标是建立一个详细的三- 一个典型的进化的维度描述 外气旋，特别是闭塞过程。 在科学界，有许多不同的 关于闭塞过程的性质的想法，一些 这源于最初的“挪威旋风”模型， 这个概念模型是在本世纪早期由 挪威气象学家 以前的分析不得不依赖于 从传统的稀疏（往往是不充分的）数据， 用于诊断研究的高空观测网。 的 这些结果虽然有用，但也留下了许多问题。 在这 研究中，主要研究者将采用最先进的 中尺度数值模式，分析三维 几个模拟气旋事件的结构。 模型 提供高的时间和空间分辨率，这将允许 更全面地了解气旋的演变。 的 首席研究员打算研究 在海洋和大陆上的气旋。

The goal of this project is to establish a detailed three- dimensional description of the evolution of a typical extratropical cyclone, particularly the occlusion process. Within the scientific community there exist many different ideas about the nature of the occlusion process, a number of which stem from the original "Norwegian cyclone" model, a conceptual model developed in the early part of this century by Norwegian meteorologists. Previous analyses have had to rely on sparse (and often inadequate) data from the conventional upper air observing network for diagnostic studies. The results, while useful, have left open many questions. In this study, the principal investigator will employ state-of-the-art mesoscale numerical models to analyze the three-dimensional structure of several simulated cyclone events. The models provide high temporal and spatial resolution which will allow a much more comprehensive view of the cyclone evolution. The principal investigator intends to look at the evolution of cyclones over both the ocean and the continent.