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During earthquakes preparation periods significant disturbances in the ionospheric plasma density are often observed. These anomalies are caused by lithosphere-atmosphere-ionosphere interaction, particularly by the seismic electric field…

地球物理 · 物理学 2012-05-03 Yu. V. Romanovskaya , A. A. Namgaladze , O. V. Zolotov , N. A. Starikova , V. Z. Lopatiy

The GPS derived anomalous TEC disturbances before earthquakes were discovered in the last years using global and regional TEC maps, measurements over individual stations as well as measurements along individual GPS satellite passes. For…

Seismo-ionosphere coupling processes have been investigated considering the GPS observed anomalous ionospheric Total Electron Content (TEC) variations before strong earthquakes as their precursors. The numerical simulations' results of the…

地球物理 · 物理学 2012-05-03 M. I. Karpov , O. V. Zolotov , A. A. Namgaladze

The formation of vortex structures at reflection of electron beam from the double layer of the Jupiter ionosphere is investigated in this paper. And also the influence of these vortex structures on the formation of dense upward electron…

地球与行星天体物理 · 物理学 2021-02-15 V. I. Maslov , O. K. Cheremnykh , A. P. Fomina , R. I. Kholodov , O. P. Novak , R. T. Ovsiannikov

A direct numerical simulation of the three-dimensional elektrokinetic instability near a charge selective surface (electric membrane, electrode, or system of micro-/nanochannels) is carried out and analyzed. A special finite-difference…

流体动力学 · 物理学 2014-08-06 E. A. Demekhin , N. V. Nikitin , V. S. Shelistov

We present a "fluid dynamics video" showing results from direct numerical simulations of electrokinetic transport in a binary electrolyte in two systems: (1) next to an ion-selective membrane and (2) around a metallic cylinder. The…

流体动力学 · 物理学 2013-10-15 Mathias B. Andersen , Clara L. Druzgalski , Scott M. Davidson , Ali Mani

We present two-dimensional global simulations of mitigated and vertically unstable disruptions in ITER in the presence of runaway electrons. An elongated plasma in free-boundary equilibrium is subjected to an artificial thermal quench and…

等离子体物理 · 物理学 2025-01-29 V. Bandaru , M. Hoelzl , F. J. Artola , M. Lehnen , JOREK team

During the propagation of a tsunami, gravity and sound waves can be produced, spreading from its source to the ionosphere's upper layers, thus generating perturbed electron densities in its E and F regions. These ionospheric disturbances…

空间物理 · 物理学 2024-01-30 Leonor Cui Domingo Centeno , Víctor Puente García

The scope of the present paper is to determine how ion electrostatic wave perturbations in plasma flows are influenced by the presence of a kinematically complex velocity shear. For this purpose we consider a model based on the following…

等离子体物理 · 物理学 2015-04-17 Z. Osmanov , A. Rogava , S. Poedts

The energetic electrons of the inner radiation belt during a geomagnetic disturbance can penetrate in the forbidden range of drift shells located at the heights of the topside equatorial ionosphere (<1000 km). A good correlation was…

空间物理 · 物理学 2013-01-14 A. V. Suvorova , L. -C. Tsai , A. V. Dmitriev

The three-dimensional instability of two coupled electromagnetic waves in an unmagnetized plasma is investigated theoretically and numerically. In the regime of two-plasmon decay, where one pump wave frequency is approximately twice the…

等离子体物理 · 物理学 2015-05-13 L. Stenflo , B. Eliasson , M. Marklund

Electron plasmas confined by an external magnetic field exhibit variations in a two-dimensional plane orthogonal to the confining magnetic field. A nonlinear fluid simulation code to investigate the properties of 2-D electron plasma wave…

等离子体物理 · 物理学 2009-11-13 Dastgeer Shaikh , P. K. Shukla

In collision-poor plasmas from space, three distinct ion-ion instabilities can be driven by the proton beams streaming along the background magnetic field: left-hand resonant, non-resonant, and right-hand resonant instabilities. These…

太阳与恒星天体物理 · 物理学 2020-08-19 S. M. Shaaban , M. Lazar , R. A. López , S. Poedts

We analyze the obtained solutions of the non-linear Shroedinger equation for spherically and axially symmetrical electrons density oscillations in plasma. The conditions of the oscillations process existence are examined. It is shown that…

等离子体物理 · 物理学 2009-07-31 Maxim Dvornikov , Sergey Dvornikov

During periods of intense geomagnetic activity, strong electric fields and currents penetrate from the magnetosphere into high-latitude ionosphere where they dissipate energy, form electrojets, and excite plasma instabilities in the…

空间物理 · 物理学 2015-05-27 Y. S. Dimant , M. M. Oppenheim

This paper examines the influence of neutral dynamics on the high latitude ionosphere. Using a longitudinal chain of ionosondes at high northern latitudes ($52\,^{\circ}{\rm}$-$65\,^{\circ}{\rm}$N), planetary wave-like structures were…

空间物理 · 物理学 2018-08-16 Nora H. Stray , Patrick J. Espy

The low frequency electrostatic perturbations have been investigated in a bi ion plasma in the background of static dust. It is shown that the field aligned shear flow of both the ions produce low frequency electrostatic instabilities and…

等离子体物理 · 物理学 2025-12-04 Usman Saeed , Shaukat Ali Shan , Hamid Saleem

Numerous sources produce the ionization impact on the planetary atmosphere. The tropospheric cloudiness therewith is originated at such altitudes, which coincide with places of the maximum of the atmospheric ionization that caused by space…

等离子体物理 · 物理学 2024-02-06 N. I. Izhovkina , S. N. Artekha , N. S. Erokhin , L. A. Mikhailovskaya

An alternative mechanism is proposed for the generation of harmonics of the electron plasma frequency due to the development of explosive instability in a system of interpenetrating electron and proton flows in the solar atmosphere. The…

太阳与恒星天体物理 · 物理学 2019-01-01 V. V. Fomichev , S. M. Fainshtein , G. P. Chernov
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