Magnetized Rossby waves in mid-latitude ionosphere F-layer

Details Magnetized Rossby waves in mid-latitude ionosphere F-layer Magnetized Rossby waves in mid-latitude ionosphere F-layer

Mar 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aasp....2...95s&link_type=abstract

Advances in Astronomy and Space Physics, Vol. 2, p.95-98

Physics

Space Physics

Plasma Waves And Instabilities, Ionospheric Disturbances, Wave Propagation

Scientific paper

We present the results of study of the ionosphere quasi-periodic perturbations on the basis of the analysis of the critical f0F2 frequency variations. The temporal scales of the perturbations are about 7 days and relative amplitude of the f0F2 perturbations are up to 40% of the averaged electron density value. It is assumed from the temporal scale and position that the critical f0F2 frequency variations are caused by Rossby wave-like disturbances with magnetic field influence on the ions. We studied the spatial and temporal scales of the waves at the F-layer altitudes on the basis of the mid-latitude ionosonde network measurements (Millstone Hill, Dyess, and Point Arguello stations data). The generalized Charney-Obukhov equation is proposed to describe the dynamics of the perturbations. We present the numerical model based on the full reduction algorithm for numerical solution of the dynamics equation.

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