Physics of auroral phenomena : proceedings of the 39th annual seminar, Apatity, 29 February-4 March, 2016 / [ed. board: N. V. Semenova, A. G. Yahnin]. - Апатиты : Издательство Кольского научного центра РАН, 2016. - 167 с. : ил., табл.

Manifestation of interplanetary shock in geomagnetic storms and substorms 4. growth of substorm activity owing to the ISh passage in the absence of storm disturbances and substorm beginning before the ISh registration at the Earth orbit can be explained by assuming [Shadrina and Starodubtsev , 1998] that the cause of substorm activity is the MHD turbulence which is generated in front of the ISh due to the acceleration of energetic particles (Ер ~ 1 MeV) on the front of quasi-parallel ISh. This turbulence by means of magnetic reconnection can penetrate into the magnetosphere and actuate the relevant intermagnetospheric processes. 4. Conclusions The analysis of the solar wind parameters, IMF and geomagnetic Dst and AE indices during solar activity growth phase of the 23rd solar cycle, from September 1997 to December 1999 was fulfilled. On the basis of performed study of 80 ISh, 27 ICMEs and, 60 geomagnetic storms it was found that passage of interplanetary shock: 1. in 70% generates the geomagnetic storms, both in the presence of ICME and in their absence. In the first case more intense storms are observed; 2. in more than 80% accompanied by the registration of SSC; 3. almost always causes substorm disturbances. Mostly, the substorm increasing of AE index starts with the beginning of the main phase of the storm, but in the absence of the storm they often start before the shock arrival. This apparently means that their cause is intermagnetospheric processes that are started before the arrival of ISh at Earth orbit. Perhaps these processes are generated by turbulent region ahead of the shock front. A cknow ledg em en ts. This work was partly supported by RFBR grants № 15-45-05090-p_east_a, and № 15-42-05082-p_ east_a. References Badruddin (1998) Interplanetary shocks, magnetic clouds, stream interfaces and resulting geomagnetic disturbances // Planet. Space Sci. - Vol. 35, No. 7. - P. 1015-1028. Cho K.-S., Moon Y.-J., Dryer М., Fry C.D., Park Y.-D. and Kim K.-S. (2003) A statistical comparison of interplanetary shock and CME propagation models// J. Geophys. Res. - Vol. 108, No. A 12 .-P . 1445, doi:10.1029/2003JA010029/ Echer E. and Gonzalez W. D. (2004) Geoeffectiveness of interplanetary shocks, magnetic clouds, sector boundary crossings and their combined occurrence/ / Geophys. Res. Lett. - Vol. 31, No. L09808, doi:10.1029/2003GL019199. Hong М., Wang X., Chua D., Parks G. (2001) Auroral substorm response to solar wind pressure shock // Chinese Sci. Bulled. - Vol. 46, No. 18.- P . 1547-1551. Manoharan P. K., Gopalswamy N., Yashiro S., Lara A., Michalek G., Howard R.A. (2004) Influence of coronal mass ejection interaction on propagation of interplanetary shocks // J. Geoph. Res. - Vol. 109. No. A06, doi: 10.1029/2003JA010300. Meurant М., Gerard J.-C., Blockx C., Coumans V., Hubert B., Connors М., Lyons L.R. and Donovan E. (2005) Comparison of intense nightside shock-induced precipitation and substorm activity // J. Geophys. Res. - Vol. 110, No. A07228, doi:10.1029/2004JA010916. Nikolaeva N.S., Yermolaev, Yu.I., Lodkina I.G. (2011) Dependence of geomagnetic activity during magnetic storms on solar wind parameters for the Зависимость геомагнитной активности во время магнитных бурь от параметров солнечного ветра для various types of flows // Goemagnetism and Aeronomy. - Vol. 51, No. 1. - P. 51 -67. Richardson I.G. and Cane H.V. (2010) Near-Earth interplanetary coronal mass ejections during solar cycle 23 (1996 - 2009): catalog and summary of properties // Solar Phys. - Vol. 264. - P. 189-237, doi: 10.1007/sl 1207-010-9568-6 Shadrina L.P., Starodubtsev S.A. (1998) Distribution of MHD turbulence in the vicinity of the leading front of large-scale solar wind disturbances / / Geomagnetism and Aeronomy. - T . 38, № 4. - C. 415-420. Solovyev S.I., Moiseyev A.V., Yumoto K., Engebretson М., Du A. (2006) The character of geomagnetic and auroral response to solar wind dynamic pressure variations and the dynamics of particles injected into the magnetosphere // Proc XXIX Annual Seminar, Apatity. - P. 112-115. Wu C-C. and Lepping R.P. (2008) Geomagnetic activity associated with magnetic clouds, magnetic cloud-like structures and interplanetary shocks for the period 1995-2003 // Adv. Space Res. - Vol. 41. - P. 335-338. Xu D., Chen Т., Zhang X.X., Liu Z. (2009) Statistical relationship between solar wind conditions and geomagnetic storms in 1998-2008 // Planet, and Space Sci. - Vol. 57. - P. 1500-1513. Yermolaev Yu.I., Yermolaev M.Yu. (2003). Statistical relationships between solar, interplanetary, and geomagnetic disturbances, 1976-2000,2 // Kosm. Issled. 41 (2), 115 (in Russian, Cosmic Res. 41 (2), 105). Zhou X. and Tsurutani B.T. (2001) Interplanetary shock triggering of nightside geomagnetic activity: Substorms, pseudobreakups, and quiescent events // J. Geophys. Res. - Vol. 106, No A9 - P 18 QS 7 _ ir q a 7 doi:10.1029/2000JA003028. 26