Physics of auroral phenomena : proceedings of the 37th Annual seminar, Apatity, 25 - 28 February, 2014 / [ed. board: A. G. Yahnin, N. V. Semenova]. - Апатиты : Изд-во Кольского научного центра РАН, 2014. - 125 с. : ил., табл.

Problem o f electron disappearance during the magnetic storm main phase value for undisturbed magnetic field. The second one is an adiabatic effect, namely particle cooling and position shift at the evening part of the magnetic drift orbit and recovery at the morning side. There are no reason to suppose that outer zone electron variation during the whole magnetic storm differs essentially from the dynamics during the main phase. Adiabatic effects and calculations of exact L values can explain observed variation of the outer electron belt latitudinal profiles. Real particle dynamics may somehow differ from presented scheme, because some nonadiabatic particle losses and accelerations (injections) can take place, but only as an additional process. 6 12 18 24 6 12 18 24 6 L I Figure 4. Position of radiation belt electron in the equatorial plane and field line footprint during the evening adiabatic cooling and morning recovery and particle energy (bottom section). References Drew L. Turner, Yu. Shprits, M. Hartinger, V. Angelopoulos (2012) Explaining sudden losses of outer radiation belt electrons during geomagnetic storms Nature Physics, V. 8, P. 208-212, doi: doi:10.1038/nphys2185. Friedel R.H.W., G.D. Reeves, T. Obara (2002) Relativistic Electron Dynamics in the Inner Magnetosphere - A review. J. Atmos. Sol. Terr. Phys. 64 (2), 265-282. Kim, H., and A. A. Chan (1997) Fully adiabatic changes in storm time relativistic electron fluxes, J. Geophys. Res., 102, 22, 107. Kim, H.-J., G. Rostoker, and Y. Kamide (2002), Radial dependence of relativistic electron fluxes for storm main phase development, J. Geophys. Res., 107(A11), 1378, doi:10.1029/2001JA007513. Kim, К. C., D.-Y. Lee, H.-J. Kim, E. S. Lee, and C. R. Choi (2010), Numerical estimates of drift loss and Dst effect for outer radiation belt relativistic electrons with arbitrary pitch angle, J. Geophys. Res., 115, A03208, doi:10.1029/2009JA014523. Lazutin L.L. (1986) X-ray emission of auroral electrons and magnetospheric dynamics. Springer-Verlag, Berlin-Heidelberg/ Physics and Chemistry in Space v. 14. Lazutin L.L. (2012) On radiation belt dynamics during magnetic storm Advances in Space Research V .49, P. 302-315. Lazutin L.L. (2014) Features of Poleward Expansion of the Outer Radiation Belt during Magnetospheric Substorms Geomagnetism andAeronomy,, Vol. 54, No. 2, pp. 187-194. Lemaire J.F., et al., (2013) Effects of concomitancy of adiabatic Betatron deceleration & acceleration (i), of up & down lifting of mirror points altitudes (ii), and of pitch angle scattering (iii) during geomagnetic storms, EGU General Assembly Session ST2.3: EGU2013-13889. Mcllwain, C.E., (1966) Processes acting upon outer zone electrons, in « Radiation belts : Models and Standards », pp 15-26 Geophysical Monograph 97, AGU. Millan, R. М., and R. M. Thome, (2007) Review of radiation belt relativistic electron losses. J. Atmos Solar-Terr. Phvs V 69 P 362-377. ‘ У ' ' ’ ’ Onsager, T.G., G. Rostoker, H.-J. Kim, G.D. Reeves, T. Obara, H.J. Singer, and C. Smithtro, (2002) Radiation belt electron flux dropouts: Local time, radial, and particle-energy dependence, J. Geophys. Res., 107(A11), 1382, doi: 10.1029/2001 JA000187 Shi, Y., et al., (2006) Statistical study of effect of solar wind dynamic pressure enhancements on dawn-to-dusk rino current asymmetry, /. Geophys. Лея.,I ll, A10216, doi:10.1029/2005JA011532. K Shprits, Y.Y., D. A. Subbotin, N. P. Meredith, S. Elkington, (2008) Review of modeling of losses and sources of relativistic electrons in the outer radiation belt II: Local acceleration and losses. J. Atmos. Solar- Terr. Phys. 70 1694—1713 Tsyganenko, N. A, (2002) A model of the near magnetosphere with a dawn-dusk asymmetry, J. Geonhvs Rei 1П7ГАЯ-> 1 i 7 Q doi: 10.1029/2001JA000219 " 1/У’ Ukhorskiy, A.Y., B.J. Anderson, PC. Brandt, and N.A. Tsyganenko (2006), Storm time evolution of the outer radiation belt- Transport and losses, J. Geophys. Res., I ll, AllS03, doi: 10.1029/2006JA011690. 28