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Visualizing Lagrangian Coherent Structures from Realistic Flow Data

Abstract The goal of this project was to examine the separatricies that define regions of distinct flow behaviors in realistic time-dependent dynamical systems. In particular, we adapted previously available methods for computing the Finite-Time Lyapunov Exponent (FTLE) to a set of measured wind velocity data in order to visualize the separatricies as ridges of the FTLE field in a section of the atmosphere. This visualization required a number of alterations to the original methods, including interpolation techniques and two different adaptive refinement schemes for producing more detailed results. Overall, there were two computations performed with the wind velocity data: once along a single spherical surface, on which the separatricies could be vi... (more)
Created Date 2014-05
Contributor Upton, James Thomas (Author) / Tang, Wenbo (Thesis Director) / Moustaoui, Mohamed (Committee Member) / Barrett, The Honors College / School of International Letters and Cultures / School of Mathematical and Statistical Sciences / Department of Physics
Subject Weather / Polar / FTLE / Separatrix / Vortexes / LCS
Series Academic Year 2013-2014
Type Text
Extent 21 pages
Language English
Reuse Permissions All Rights Reserved
Collaborating Institutions Barrett, the Honors College
Additional Formats MODS / OAI Dublin Core / RIS

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