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| Titel |
Field theoretical prediction of a property of the tropical cyclone |
| VerfasserIn |
F. Spineanu, M. Vlad |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
2198-5634
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics Discussions ; 1, no. 1 ; Nr. 1, no. 1 (2014-01-20), S.1-37 |
| Datensatznummer |
250115070
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| Publikation (Nr.) |
 copernicus.org/npgd-1-1-2014.pdf |
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| Zusammenfassung |
| The large scale atmospheric vortices (tropical cyclones, tornadoes) are
complex physical systems combining thermodynamics and fluid-mechanical
processes. The late phase of the evolution towards stationarity consists of
the vorticity concentration, a well known tendency to self-organization , an
universal property of the two-dimensional fluids. It may then be expected
that the stationary state of the tropical cyclone has the same nature as the
vortices of many other systems in nature: ideal (Euler) fluids,
superconductors, Bose–Einsetin condensate, cosmic strings, etc. Indeed it
was found that there is a description of the atmospheric vortex in terms of
a classical field theory. It is compatible with the more conventional treatment based
on conservation laws, but the field theoretical model reveals properties
that are almost inaccessible to the conventional formulation: it identifies
the stationary states as being close to self-duality. This is of highest
importance: the self-duality is known to be the origin of all coherent
structures known in natural systems. Therefore the field theoretical (FT)
formulation finds that the cuasi-coherent form of the atmospheric vortex
(tropical cyclone) at stationarity is an expression of this particular
property. In the present work we examine a strong property of the tropical
cyclone, which arises in the FT formulation in a natural way: the equality
of the masses of the particles associated to the matter field and
respectively to the gauge field in the FT model is translated into the
equality between the maximum radial extension of the tropical cyclone and
the Rossby radius. For the cases where the FT model is a good approximation
we calculate characteristic quantities of the
tropical cyclone and find good comparison with observational data. |
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