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| Titel |
Dust devil vortex generation from convective cells |
| VerfasserIn |
O. Onishchenko, O. Pokhotelov, W. Horton, V. Fedun |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 33, no. 11 ; Nr. 33, no. 11 (2015-11-04), S.1343-1347 |
| Datensatznummer |
250121264
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| Publikation (Nr.) |
 copernicus.org/angeo-33-1343-2015.pdf |
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| Zusammenfassung |
We have developed a hydrodynamic theory of the nonlinear stage of dust devil
generation in a convectively unstable atmosphere with large-scale seed vertical
vorticity. It is shown that convective motion in such an atmosphere transforms
into dust devils extremely fast. The strong vortical structure of the dust
devils can be formed in a few minutes or even in a fraction of a minute. The
formation process strongly depends on the convective instability growth rate
and horizontal vorticity.
The work is supported by the US Department of Energy under Contract DEFG02-04ER-54742. |
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