HR: 0800h
AN: SM51B-0363 [Abstracts]
TI: Geomagnetic Effects From the Plasma Cloud Extending in the Ionosphere
AU: * Zetzer, J
EM: zetzer@idg.chph.ras.ru
AF: Institute of Geospheres Dynamics (IDG) Russian Academy of Sciences, 38, Leninsky prospect, bld.1 Russia,
Moscow, 119334
Russian Federation
AU: Gavrilov, B
EM: gavrilov@idg.chph.ras.ru
AF: Institute of Geospheres Dynamics (IDG) Russian Academy of Sciences, 38, Leninsky prospect, bld.1 Russia,
Moscow, 119334
Russian Federation
AU: Zhmailo, V
EM: VAZ@albatross.md08.vniief.ru
AF: Institute of Geospheres Dynamics (IDG) Russian Academy of Sciences, 38, Leninsky prospect, bld.1 Russia,
Moscow, 119334
Russian Federation
AU: Gainullin, K
AF: Institute of Geospheres Dynamics (IDG) Russian Academy of Sciences, 38, Leninsky prospect, bld.1 Russia,
Moscow, 119334
Russian Federation
AU: Selin, V
AF: Institute of Geospheres Dynamics (IDG) Russian Academy of Sciences, 38, Leninsky prospect, bld.1 Russia,
Moscow, 119334
Russian Federation
AB:
Geomagnetic variations on the Earth surfaces created by the magnetohydrodynamics stage of the expansion of the plasma cloud
of the high-altitude nuclear explosions are considered. It is shown that the distribution of the amplitudes of these
variations on the different distances from the cloud submits to the specific regularity. The analysis of the experimental
data and magnetohydrodynamics numerical simulation have confirmed that the temporal form and phases of the electromagnetic
field on the Earth surface are determined by its propagation through three channels: through the atmosphere, through the
ionosphere and through the lithosphere. The good agreement between the results of the numerical simulations and the
measurements is shown. Comparison of the disturbances caused by the explosions and substorms show the difficulties of its
separation on the distant zone from the explosions.
DE: 7599 General or miscellaneous
DE: 7899 General or miscellaneous
DE: 2199 General or miscellaneous
DE: 2499 General or miscellaneous
DE: 2799 General or miscellaneous
SC: SPA-Magnetospheric Physics [SM]
MN: 2004 AGU Fall Meeting