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Dynamics of the magnetosphere during geomagnetic storms on January 21-22, 2005 and December 14-15, 2006
Kalegaev, V. V.; Vlasova, N. A.; Peng, Z.; Kalegaev, VV (reprint author), Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia.
Department空间科学部
Source PublicationCOSMIC RESEARCH
2015
Volume53Issue:2Pages:98-110
ISSN0010-9525
Language英语
AbstractThe dynamics of large-scale magnetospheric current systems during geomagnetic storms on January 21-22, 2005 and December 14-15, 2006 is investigated using the A2000 model of the magnetospheric magnetic field. Storm development is controlled by both the interplanetary magnetic field and solar wind pressure that create conditions for injection of plasma into the inner magnetosphere. It is demonstrated that the main role in the development of the January 21-22, 2005 magnetic storm was played by a strong impulse of solar wind pressure, while the December 14-15, 2006 storm was initiated by a changed orientation of the interplanetary magnetic field. As a consequence, the Dst variation of the geomagnetic field during the January 21-22, 2005 storm is determined basically by ring current development. On December 14-15, 2006 it is determined by comparable contributions of the ring current and of the magnetotail currents. The results of modeling are confirmed by data on dynamic properties of the fluxes of three populations of ions with energies 30-80 keV (at low latitudes L < 2, and at latitudes below and above the isotropic precipitation boundary) measured by the solar-synchronous satellites of NOAA (POES 15, POES 16, and POES 17).
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5268
Collection空间科学部
Corresponding AuthorKalegaev, VV (reprint author), Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia.
Recommended Citation
GB/T 7714
Kalegaev, V. V.,Vlasova, N. A.,Peng, Z.,et al. Dynamics of the magnetosphere during geomagnetic storms on January 21-22, 2005 and December 14-15, 2006[J]. COSMIC RESEARCH,2015,53(2):98-110.
APA Kalegaev, V. V.,Vlasova, N. A.,Peng, Z.,&Kalegaev, VV .(2015).Dynamics of the magnetosphere during geomagnetic storms on January 21-22, 2005 and December 14-15, 2006.COSMIC RESEARCH,53(2),98-110.
MLA Kalegaev, V. V.,et al."Dynamics of the magnetosphere during geomagnetic storms on January 21-22, 2005 and December 14-15, 2006".COSMIC RESEARCH 53.2(2015):98-110.
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