Zobrazeno 1 - 10
of 47
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c39fe47edf474a25896f10c9d5c50066
https://doi.org/10.1002/2017ja023960
https://doi.org/10.1002/2017ja023960
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa93a0b29d17bd974da966089cbfb42d
https://doi.org/10.1002/jgra.50196
https://doi.org/10.1002/jgra.50196
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22c65b693e43a1099c7f8d8dd1925d5f
https://doi.org/10.5194/angeo-28-719-2010
https://doi.org/10.5194/angeo-28-719-2010
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b47dbb9a21b8b7d57adc1ea80a5eb002
https://doi.org/10.1134/s1063780x09070095
https://doi.org/10.1134/s1063780x09070095
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::749238c453d0c22446c81cec70248b0f
https://doi.org/10.1134/s1063780x09050079
https://doi.org/10.1134/s1063780x09050079
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0869738010c862d6875b089fe178f34f
https://doi.org/10.3103/s0278641909010038
https://doi.org/10.3103/s0278641909010038
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e493765294c242569355d0f633d26d6f
https://doi.org/10.5194/angeo-26-2853-2008
https://doi.org/10.5194/angeo-26-2853-2008
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e89838849b2bd0acbdcf8f19ef30db63
https://www.ann-geophys.net/26/543/2008/angeo-26-543-2008.pdf
https://www.ann-geophys.net/26/543/2008/angeo-26-543-2008.pdf
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76dc244e340e23ab64068741ee0d7cf9
https://doi.org/10.1016/j.jastp.2004.07.006
https://doi.org/10.1016/j.jastp.2004.07.006