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| Titel |
Lagrangian mixing in an axisymmetric hurricane model |
| VerfasserIn |
B. Rutherford, G. Dangelmayr, J. Persing, M. Kirby, M. T. Montgomery |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 10, no. 14 ; Nr. 10, no. 14 (2010-07-23), S.6777-6791 |
| Datensatznummer |
250008653
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| Publikation (Nr.) |
 copernicus.org/acp-10-6777-2010.pdf |
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| Zusammenfassung |
| This paper discusses the extension of established Lagrangian mixing measures
to make them applicable to data extracted from a 2-D axisymmetric hurricane
simulation. Because of the non-steady and unbounded characteristics of the
simulation, the previous measures are extended to a moving frame approach
to create time-dependent mixing rates that are dependent upon the initial
time of particle integration, and are computed for nonlocal regions. The
global measures of mixing derived from finite-time Lyapunov exponents,
relative dispersion, and a measured mixing rate are applied to distinct regions
representing different characteristic feautures within the model. It is
shown that these time-dependent mixing rates exhibit correlations with
maximal tangential winds during a quasi-steady state, establishing a
connection between mixing and hurricane intensity. |
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