大气流动中持久结构的定义、探测和跟踪
Definition, detection, and tracking of persistent structures in atmospheric flows
摘要：
大气中长期存在的气流模式，如锋面、中纬度阻塞或热带气旋，往往会引发极端天气状况。因此，它们的描述、检测和跟踪近年来受到越来越多的关注。类似的目标也出现在不同的领域中，例如湍流和燃烧研究、图像分析和医学诊断，标题为“特征跟踪”、“相干结构检测”或“图像对准“-仅举几例。已经制定并成功地使用了许多不同的方法来处理基本的、往往非常相似的任务。在这里，这种方法的几个典型的例子进行了总结，进一步发展和应用到气象数据集。通用的抽象操作步骤构成了“持久结构”规范的统一框架的基础，该规范涉及系统的物理状态的定义、感兴趣的特征以及测量其持久性的方法。
英文摘要：
Long-lived flow patterns in the atmosphere such as weather fronts, mid-latitude blockings or tropical cyclones often induce extreme weather conditions. As a consequence, their description, detection, and tracking has received increasing attention in recent years. Similar objectives also arise in diverse fields such as turbulence and combustion research, image analysis, and medical diagnostics under the headlines of "feature tracking", "coherent structure detection" or "image registration" - to name just a few. A host of different approaches to addressing the underlying, often very similar, tasks have been developed and successfully used. Here, several typical examples of such approaches are summarized, further developed and applied to meteorological data sets. Common abstract operational steps form the basis for a unifying framework for the specification of "persistent structures" involving the definition of the physical state of a system, the features of interest, and means of measuring their persistence.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
