Results 181 to 190 of about 166,062,727 (217)

Homotopy perturbation and Adomian decomposition methods for modeling the nonplanar structures in a bi-ion ionospheric superthermal plasma

The European Physical Journal Plus, 2021
The propagation of cylindrical and spherical (nonplanar) electrostatic ion-acoustic waves (IAWs) in a collisionless, unmagnetized, and homogeneous plasma consisting of hot and cold positive ions as well as superthermal electrons are numerically investigated.
S. A. El-Tantawy, Shaukat Ali Shan, Naeem Mustafa, Mansoor H. Alshehri, Faisal Z. Duraihem, Nasser Bin Turki   +5 more
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Plasma diagnostics package measurements of ionospheric ions and shuttle‐induced perturbations

Journal of Geophysical Research: Space Physics, 1986
The plasma diagnostics package (PDP) on the space shuttle STS‐3 mission in March 1982 carried among its instrument complement a retarding potential analyzer. This instrument measured both the ambient ion plasma density and temperature, and perturbations to the plasma produced by shuttle orbiter effects.
David L. Reasoner, Stanley D. Shawhan, Gerald Murphy   +2 more
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Global magnetospheric perturbations stimulated by the plasma wave discharge in the lower ionosphere

Radiophysics and Quantum Electronics, 1994
In this paper we discuss a new method of controlled stimulation of global perturbations and the diagnostics of plasma physical processes in the ionosphere and the magnetosphere of the Earth. The method was realized with a series of rocket experiments by means of excitation of the radio frequency plasma wave discharge in the near field of the dipole ...
G. A. Markov, Yu. V. Chugunov
openaire   +1 more source

A Study of the Density Variations of Mesospheric Ozone in the Case of Ionospheric Perturbation by The “Sura” Facility Radiation with Simultaneous Diagnostics of Ionospheric Plasma

Radiophysics and Quantum Electronics, 2019
We present the results of microwave observations of atmospheric radiation in the ozone line in the case of ionospheric perturbation by powerful high-frequency radio emission from the “Sura” facility in September 2016. The atmospheric-radiation spectrum in the ozone line was measured by the method of the ground-based microwave radiometry.
A. F. Andrianov, N. V. Bakhmet’eva, V. D. Vyakhirev, E.E. Kalinina, A. A. Krasilnikov, Yu. Yu. Kulikov   +5 more
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Plasma-perturbation evolution in the F-region and estimation of ionospheric parameters from sounding data

Radiophysics and Quantum Electronics, 1994
The problem of plasma perturbation caused by the point emission of energy on the order of 1014 ergs in the F-region is examined. Perturbation is observed by radio-frequency sounding in the first 15 sec after an explosion. A homogeneous medium and spherical symmetry of the charge are assumed.
V. A. Pavlov, A. N. Pinegin, I. R. Smirnovskii   +2 more
openaire   +1 more source

The Use of Satellite Radio Tomography Data in The Problems of Estimating The Degree of Perturbation of Ionospheric Plasma

2019 Russian Open Conference on Radio Wave Propagation (RWP), 2019
The distributions of the ionospheric plasma re-constructed by the methods of satellite radio tomography are presented. The structural and dynamic peculiarities of the ionosphere during quiet and disturbed conditions are discussed. We present several comparisons illustrating the qualitative consistency between measurements of particle fluxes by DMSP ...
Elena S. Andreeva, Evgeny D. Tereshchenko, Marina O. Nazarenko, Ivan A. Nesterov, Artem M. Padokhin, Yulia S. Tumanova   +5 more
openaire   +1 more source

Attribution of ionospheric vertical plasma drift perturbations to large‐scale waves and the dependence on solar activity

Journal of Geophysical Research: Space Physics, 2013
In this study, we quantify the contribution of individual large‐scale waves to ionospheric electrodynamics and examine the dependence of the ionospheric perturbations on solar activity. We focus on migrating diurnal tide (DW1) plus mean winds, migrating semidiurnal tide (SW2), quasi‐stationary planetary wave one (QSPW1), and nonmigrating semidiurnal ...
H.‐L. Liu, A. D. Richmond
openaire   +1 more source

Spatial Characteristics of Mesoscale Plasma Flow Perturbations and Accompanying Electron Precipitation in the High‐Latitude Ionosphere

Journal of Geophysical Research: Space Physics, 2019
AbstractThe spatial characteristics of mesoscale plasma perturbations in the high‐latitude ionosphere are important considerations for a more complete description of the energy deposition from the magnetosphere. In this study, ion drift and particle precipitation measurements from the Defense Meteorological Satellite Program F17 satellite during local ...
Yun‐Ju Chen, Roderick A. Heelis
openaire   +1 more source

Spatial Structure of Large-Scale Plasma Density Perturbations HF-Induced in the Ionospheric F 2 Region

Radiophysics and Quantum Electronics, 2016
© 2016, Springer Science+Business Media New York.We consider the experimental results obtained by studying the large-scale structure of the HF-disturbed ionospheric region. The experiments were performed using the SURA heating facility. The disturbed ionospheric region was sounded by signals radiated by GPS navigation satellite beacons as well as by ...
Frolov V., Komrakov G., Glukhov Y., Andreeva E., Kunitsyn V., Kurbatov G.   +5 more
openaire   +3 more sources

The Results of Measurements of Features of Artificial Electromagnetic and Plasma Perturbations in the Outer Ionosphere of the Earth Using the DEMETER Satellite

Moscow University Physics Bulletin, 2018
The results of the DEMETER satellite mission for 2005–2010 are summarized. The characteristics of electromagnetic and plasma perturbations induced in the F2 layer of the Earth’s ionosphere by the highpower HF radio waves from the SURA heating facility are analyzed.
Frolov, V., Rapoport, V., Shorokhova, E., Parrot, Michel, Rauch, J.-L.   +4 more
openaire   +3 more sources