TY - JOUR A1 - von Lindheim, Johannes A1 - Harikrishnan, Abhishek A1 - Dörffel, Tom A1 - Klein, Rupert A1 - Koltai, Peter A1 - Mikula, Natalia A1 - Müller, Annette A1 - Névir, Peter A1 - Pacey, George A1 - Polzin, Robert A1 - Vercauteren, Nikki T1 - Definition, detection and tracking of persistent structures in atmospheric flows T2 - arXiv N2 - 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. Y1 - 2021 UR - https://opus4.kobv.de/opus4-zib/frontdoor/index/index/docId/8537 ER -