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| Titel |
Study on the layered dusty plasma structures in the summer polar mesopause |
| VerfasserIn |
Li Hui, Jian Wu, Jun Wu, Zheng-Wen Xu, Xu Bin |
| 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 ; 28, no. 9 ; Nr. 28, no. 9 (2010-09-20), S.1679-1686 |
| Datensatznummer |
250016880
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| Publikation (Nr.) |
 copernicus.org/angeo-28-1679-2010.pdf |
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| Zusammenfassung |
| Traditional hydrodynamic equations are adopted to build a
one-dimensional theoretical model to study the effect of gravity
wave on layered dusty plasma structures formation and evolution near
the polar summer mesospause region associated with polar mesosphere
summer echoes (PMSE). The proposed mechanism gives consideration to
the charged ice particle motion by the gravity wave modulation,
making a significant contribution to the vertical transport of heavy
ice particles and convergence into thin layers. And numerical
results show that the pattern of the multi-layer structure depends
on the ration of the initial ice particles density distribution to
the vertical wavelength of the gravity waves, the ice particle size
and the wind velocity caused by gravity wave. Also, the variation of
ion density distribution under the influence of gravity wave has
also been examined. Finally, the electron density depletions
(bite-outs) layers has been simulated according to the charge
conservation laws, and the results are compared to the ECT02 rocket
sounding data, which agree well with the measuring. |
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