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 ve...
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ftarizonastateun:item:23552 2023-05-15T13:31:59+02:00 Visualizing Lagrangian Coherent Structures from Realistic Flow Data 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 2014-05 21 pages http://hdl.handle.net/2286/R.I.23552 eng eng Academic Year 2013-2014 http://hdl.handle.net/2286/R.I.23552 http://rightsstatements.org/vocab/InC/1.0/ All Rights Reserved Weather Polar FTLE Separatrix Vortexes LCS Text 2014 ftarizonastateun 2019-04-06T22:55:10Z 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 visualized as material lines, and then along a three-dimensional section of the atmosphere, for which the separatricies were material surfaces. The resulting figures provide an image of the Antarctic polar vortex from the wind velocity data, which is consistent with other data gathered on the same date. Text Antarc* Antarctic Arizona State University: ASU Digital Repository Antarctic The Antarctic |
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Open Polar |
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Arizona State University: ASU Digital Repository |
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ftarizonastateun |
language |
English |
topic |
Weather Polar FTLE Separatrix Vortexes LCS |
spellingShingle |
Weather Polar FTLE Separatrix Vortexes LCS Visualizing Lagrangian Coherent Structures from Realistic Flow Data |
topic_facet |
Weather Polar FTLE Separatrix Vortexes LCS |
description |
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 visualized as material lines, and then along a three-dimensional section of the atmosphere, for which the separatricies were material surfaces. The resulting figures provide an image of the Antarctic polar vortex from the wind velocity data, which is consistent with other data gathered on the same date. |
author2 |
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 |
format |
Text |
title |
Visualizing Lagrangian Coherent Structures from Realistic Flow Data |
title_short |
Visualizing Lagrangian Coherent Structures from Realistic Flow Data |
title_full |
Visualizing Lagrangian Coherent Structures from Realistic Flow Data |
title_fullStr |
Visualizing Lagrangian Coherent Structures from Realistic Flow Data |
title_full_unstemmed |
Visualizing Lagrangian Coherent Structures from Realistic Flow Data |
title_sort |
visualizing lagrangian coherent structures from realistic flow data |
publishDate |
2014 |
url |
http://hdl.handle.net/2286/R.I.23552 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Academic Year 2013-2014 http://hdl.handle.net/2286/R.I.23552 |
op_rights |
http://rightsstatements.org/vocab/InC/1.0/ All Rights Reserved |
_version_ |
1766023331388063744 |