Zobrazeno 1 - 10
of 46
pro vyhledávání: '"I. V. Golovchanskaya"'
Publikováno v:
Annales Geophysicae, Vol 32, Pp 1-6 (2014)
We examine the effectiveness of nonuniform, quasistatic, transverse electric fields that are often observed in the auroral region in destabilization of inhomogeneous energy-density-driven (IEDD) waves. Specifically, the IEDD dispersion relation of
Externí odkaz:
https://doaj.org/article/bbf0fd04e86a4cb6a115c4f39b9c0697
Publikováno v:
Annales Geophysicae, Vol 29, Pp 1349-1354 (2011)
We investigate time evolution of scaling index αA that characterizes auroral luminosity fluctuations at the beginning of substorm expansion. With the use of UVI images from the Polar satellite, it is shown that αA typically varies from values le
Externí odkaz:
https://doaj.org/article/c1b15b2ba3674a80a0e3f3a164b910d3
Publikováno v:
Annales Geophysicae, Vol 25, Pp 1721-1725 (2007)
The pioneering storm-time model of magnetospheric magnetic field T01S made possible trajectory calculations for the events of giant magnetic storms. We have performed such calculations for a unique magnetic storm on 20 November 2003. In our previo
Externí odkaz:
https://doaj.org/article/e4c8849562d6450791c8ce542deab612
Publikováno v:
Annales Geophysicae, Vol 24, Pp 1685-1693 (2006)
We perform modeling of the interchange instability driven by longitudinal pressure asymmetry in the region of the pressure buildup that forms in the inner magnetosphere at the substorm growth phase. The simulation refers to the dawnward side of th
Externí odkaz:
https://doaj.org/article/c294ae7fc8024755ae8de0d6e586c617
Autor:
T. A. Kornilova, I. V. Golovchanskaya
Publikováno v:
Geomagnetism and Aeronomy. 58:307-313
Using optical data from observatories of the Polar Geophysical Institutes, as well all-sky TV observations at Canadian stations of ground support for the THEMIS satellite mission, we clarify whether Alfven resonance should necessarily be present in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a69549174e42f8216c2bda114695e8c
https://doi.org/10.1134/s001679321803009x
https://doi.org/10.1134/s001679321803009x
Publikováno v:
Russian Journal of Physical Chemistry B. 12:527-531
Plasma instability caused by an inhomogeneous energy density distribution is considered. It is shown that this instability can lead to the excitation of electrostatic ion-cyclotron and oblique ion-acoustic waves, generated in the presence of an inhom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54de0891ac0a2034fedbb01c33d05cac
https://doi.org/10.1134/s1990793118030119
https://doi.org/10.1134/s1990793118030119
Publikováno v:
Geomagnetism and Aeronomy. 58:223-228
Satellite observations show that the electrostatic instability, which is expected to occur in most cases due to an inhomogeneous energy density caused by a strongly inhomogeneous transverse electric field (shear of plasma convection velocity), occasi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac474732ac92e55ae28b7ccacb6beb4f
https://doi.org/10.1134/s0016793218020081
https://doi.org/10.1134/s0016793218020081
Publikováno v:
Geomagnetism and Aeronomy. 58:43-49
The evolution of preonset auroral arcs before full-scale auroral poleward expansion (the time T0 indicates the expansion onset) is studied based on ground-based optical observations filtered by the gradient method. In one of the three events studied
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c00b7428b6cadca400f452ab313b1fec
https://doi.org/10.1134/s0016793218010073
https://doi.org/10.1134/s0016793218010073
Publikováno v:
Geomagnetism and Aeronomy. 57:308-316
The broadband electrostatic turbulence generally observed in the high-latitude ionosphere is a superposition of nonlocal waves of ion-acoustic and ion-cyclotron types. In the presence of a shear of ion parallel velocity, ion-acoustic modes can be ind
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa264175b4955089483ded9a5b298d74
https://doi.org/10.1134/s0016793217030045
https://doi.org/10.1134/s0016793217030045
Publikováno v:
Geomagnetism and Aeronomy. 56:268-275
As a rule, bright auroral arcs evolve near the poleward boundary of the auroral oval at the growth phase of a substorm, a phenomenon that is known to occur near the poleward edge of the auroral oval. The closeness of these arcs to the projection of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8fd5e6460c72715ef5d3bd1ddb0c79b
https://doi.org/10.1134/s0016793216030105
https://doi.org/10.1134/s0016793216030105