Physics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsa21a0245w&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #SA21A-0245
Physics
0355 Thermosphere: Composition And Chemistry, 0358 Thermosphere: Energy Deposition (3369), 2441 Ionospheric Storms (7949), 7969 Satellite Drag (1241)
Scientific paper
We present results of quantitative, three-dimensional multi-fluid simulations of the nonlinear dynamics of Kelvin-Helmholtz modes in the partially ionized dusty plasma of noctilucent clouds. Noctilucent clouds are a typical example for dusty plasmas in the Earth's Mesosphere / Lower Thermosphere (MLT). A specific feature observed in noctilucent clouds are wavy, turbulent structures. Possible explanations for these structures, which are discussed in the literature, are based on hydrodynamical models. The dusty plasma aspect has been widely neglected, so far. In this paper we examine the non-linear dynamics of Kelvin-Helmholtz modes in noctilucent clouds from the viewpoint of a three-dimensional dusty plasma dynamics. The corresponding results support former two-dimensional investigations and are in good qualitative and quantitative agreement with observations.
Lazerson Samuel
Wiechen H. M.
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