Zobrazeno 1 - 10
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pro vyhledávání: '"Ya. S. Dimant"'
Autor:
Meers Oppenheim, Ya. S. Dimant
Publikováno v:
Journal of Geophysical Research: Space Physics. 122:4669-4696
Every second millions of small meteoroids enter the Earth's atmosphere producing dense plasmas. Radars easily detect these plasmas and researchers use this data to characterize both the meteoroids and the atmosphere. This paper develops a first-princ
Autor:
Ya. S. Dimant, Meers Oppenheim
Publikováno v:
Journal of Geophysical Research: Space Physics. 118:1306-1318
[1] Electric fields map from the magnetosphere to the E region ionosphere where they drive the intense currents of the auroral electrojet. Particularly during geomagnetic storms and substorms, these currents become sufficiently intense to develop Far
Autor:
Meers Oppenheim, Ya. S. Dimant
This paper calculates the spatial distribution of the plasma responsible for radar head echoes by applying the kinetic theory developed in the companion paper (Dimant and Oppenheim, arXiv:1608.08524). This results in a set of analytic expressions for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1246bb8d241ebd449d432b67feee8a2
http://arxiv.org/abs/1609.00256
http://arxiv.org/abs/1609.00256
Autor:
Meers Oppenheim, Ya. S. Dimant
Publikováno v:
Annales Geophysicae, Vol 28, Pp 719-736 (2010)
Annales Geophysicae, Vol 28, Iss 3, Pp 719-736 (2010)
Annales Geophysicae, Vol 28, Iss 3, Pp 719-736 (2010)
In the auroral lower-E and upper-D region of the ionosphere, plasma clouds, such as sporadic-E layers and meteor plasma trails, occur daily. Large-scale electric fields, created by the magnetospheric dynamo, will polarize these highly conducting clou
Publikováno v:
Plasma Physics Reports. 35:603-610
The Farley-Buneman instability is a two-stream instability observed in the weakly ionized plasma of the E region of the Earth’s ionosphere. In the present paper, the effect of nonisothermal behavior of electrons on the development of this instabili
Publikováno v:
Plasma Physics Reports. 35:420-425
The Farley-Buneman instability, which has been observed in the E region of the Earth’s ionosphere, is studied using fluid equations for electrons, a four-dimensional (in coordinate-velocity space) kinetic equation for ions, and Poisson’s equation
Publikováno v:
Moscow University Computational Mathematics and Cybernetics. 33:17-24
The Farley-Buneman instability is the plasma instability in the E region of the Earth’s ionosphere. Many studies on instability simulations use algorithms based on the particle method, which has many shortcomings. In particular, the solutions obtai
Publikováno v:
Annales Geophysicae, Vol 26, Pp 2853-2870 (2008)
Annales Geophysicae, Vol 26, Iss 9, Pp 2853-2870 (2008)
Annales Geophysicae, Vol 26, Iss 9, Pp 2853-2870 (2008)
A novel approach to nonlinear simulations of the Farley-Buneman (FB) instability in the E-region ionosphere is developed. The mathematical model includes a fluid description of electrons and a simplified kinetic description of ions based on a kinetic
Publikováno v:
Annales Geophysicae, Vol 26, Pp 543-553 (2008)
Scopus-Elsevier
Annales Geophysicae, Vol 26, Iss 3, Pp 543-553 (2008)
Scopus-Elsevier
Annales Geophysicae, Vol 26, Iss 3, Pp 543-553 (2008)
Currents flowing in the Earth's ionospheric elec- trojets often develop Farley-Buneman (FB) streaming insta- bilities and become turbulent. The resulting electron density irregularities cause these regions to readily scatter VHF and UHF radar signals
Autor:
Meers Oppenheim, Ya. S. Dimant
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 66:1639-1654
Linear instabilities and turbulent processes in equatorial and high-latitude electrojets lead to formation of plasma density irregularities which create much of the common E-region radar clutter. Studies of these irregularities have focused on the ro