New branches of natural ultra low-frequency electromagnetic oscillations of the ionospheric resonator

Khantadze, A. G.; Aburjania, G. D.; Lominadze, G. G.

doi:10.1134/s1028334x0601020x

Cited by 5 publications

(9 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Waves (50-52) are discussed in more details in Kobaladze and Khantadze (1989); Petviashvili and Pokhotelov (1992); Khantadze et al (2006). Note that the peculiarities of propagation of internal gravity waves and so-called magnetized Rossby waves (MRW) in the ionospheric E-layer was investigated recently (Kaladze, 1999;Kaladze and Horton, 2006;Horton et al, 2008).…”

Section: Planetary Electromagnetic Waves In the Ionospheric E-and F-rmentioning

confidence: 99%

“…Therefore, the above-mentioned expressions for planetary waves are only approximate formulae. An attempt to fill this gap was made in the papers (Aburjania et al, 2003(Aburjania et al, , 2005Aburjania and Khantadze, 2005;Khantadze et al, 2006).…”

Section: Planetary Electromagnetic Waves In the Ionospheric E-and F-rmentioning

confidence: 99%

“…With the taking into account the curvature of the geomagnetic lines of force in the spherical coordinate system was shown (Khantadze et al, 2006) that there exists an exact solution of fundamental system (45) in the form of magnetogradient zonal planetary waves, V (λ ,t), h(λ ,t), H 0r (r,θ ), H 0θ (r,θ ), H 0λ = 0:…”

Section: Planetary Electromagnetic Waves In the Ionospheric E-and F-rmentioning

confidence: 99%

“…The nature of the three-dimensional planetary electromagnetic waves propagating in the Earth's ionosphere was investigated by Khantadze et al (2004) and . Spherical geometry of the planetary electromagnetic waves in the Earth's ionosphere was investigated by .…”

Section: Planetary Electromagnetic Waves In the Ionospheric E-and F-rmentioning

confidence: 99%

See 3 more Smart Citations

Electromagnetic oscillations of the Earth's upper atmosphere (review)

et al. 2010

Self Cite

View full text Add to dashboard Cite

Abstract.A complete theory of low-frequency MHD oscillations of the Earth's weakly ionized ionosphere is formulated. Peculiarities of excitation and propagation of electromagnetic acoustic-gravity, MHD and planetary waves are considered in the Earth's ionosphere. The general dispersion equation is derived for the magneto-acoustic, magnetogravity and electromagnetic planetary waves in the ionospheric E-and F-regions. The action of the geomagnetic field on the propagation of acoustic-gravity waves is elucidated. The nature of the existence of the comparatively new largescale electromagnetic planetary branches is emphasized.

show abstract

Section: Planetary Electromagnetic Waves In the Ionospheric E-and F-rmentioning

confidence: 99%

Section: Planetary Electromagnetic Waves In the Ionospheric E-and F-rmentioning

confidence: 99%

Section: Planetary Electromagnetic Waves In the Ionospheric E-and F-rmentioning

confidence: 99%

Section: Planetary Electromagnetic Waves In the Ionospheric E-and F-rmentioning

confidence: 99%

See 2 more Smart Citations

Electromagnetic oscillations of the Earth's upper atmosphere (review)

et al. 2010

Self Cite

View full text Add to dashboard Cite

show abstract

“…These waves in [8,9] were called magnetogradient waves of Khantadze. In the above-stated papers [2][3][4][5][6][7] classification of magnetogradient planetary waves (fast and slow), hydrodynamic end electromagnetic nature of these waves and the anisotropic nature of their propagation caused by curvature of lines of force of the geomagnetic field along the Earth parallels was for the first time given. Assessment of parameters of the considered waves, and also linear and nonlinear theories of magnetogradient waves, is given in [10][11][12][13][14]. Experimentally these waves were recorded in [8,15,16].…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Magnetogradient Waves in the Upper Atmosphere

Jandieri

Gvelesiani

Diasamidze

et al. 2017

JAP

View full text Add to dashboard Cite

I S S N 2347-3487 V o l u m e 1 3 N u m b e r 5 J o u r n a l o f A d v a n c e s i n P h y s i c s | THREE-DIMENSIONAL MAGNETOGRADIENT WAVES IN THE UPPER ATMOSPHERE ABSTRACTGeneral dispersion equation has been obtained for three-dimensional electromagnetic planetary waves, from which follows, as particular case Khantadze results in one-dimension case. It was shown that partial magnetic field line freezingin as in one-dimension case lead to the excitation of both "fast" and "slow" planetary waves, in two-liquid approximation (i.e. at ion drag by neutral particles) they are represent oscillations of magnetized electrons and partially magnetized ions in E region of the ionosphere. In F region of the ionosphere using one-liquid approximation only "fast" planetary wave will be generated representing oscillation of medium as a whole. Hence, it was shown that three-dimension magnetogradient planetary waves are exist in all components of the ionosphere, and as exact solutions, with well-known slow short-wave MHD waves, are simple mathematical consequence of the MHD equations for the ionosphere.

show abstract

Generation of zonal flow and magnetic field by coupled Rossby–Alfvén–Khantadze waves in the Earth's ionosphericE-layer

Kaladze¹,

Horton²,

Kahlon³

et al. 2013

Phys. Scr.

View full text Add to dashboard Cite

It is shown that in the Earth's weakly ionized ionospheric E-layer with the dominant Hall conductivity, a new type of coupled Rossby–Alfvén–Khantadze (CRAK) electromagnetic (EM) planetary waves, attributable by the latitudinal inhomogeneity of both the Earth's Coriolis parameter and the geomagnetic field, can exist. Under such coupling, a new type of dispersive Alfvén waves is revealed. The generation of a sheared zonal flow and a magnetic field by CRAK EM planetary waves is investigated. The nonlinear mechanism of the instability is based on the parametric excitation of a zonal flow by interacting four waves, leading to the inverse energy cascade in the direction of a longer wavelength. A three-dimensional (3D) set of coupled equations describing the nonlinear interaction of pumping CRAK waves and zonal flow is derived. The growth rate of the corresponding instability and the conditions for driving them are determined. It is found that the growth rate is mainly stipulated by Rossby waves but the generation of the intense mean magnetic field is caused by Alfvén waves.

show abstract

New branches of natural ultra low-frequency electromagnetic oscillations of the ionospheric resonator

Cited by 5 publications

References 4 publications

Electromagnetic oscillations of the Earth's upper atmosphere (review)

Electromagnetic oscillations of the Earth's upper atmosphere (review)

Three-Dimensional Magnetogradient Waves in the Upper Atmosphere

Generation of zonal flow and magnetic field by coupled Rossby–Alfvén–Khantadze waves in the Earth's ionosphericE-layer

Contact Info

Product

Resources

About