from 01.01.1999 until now
Yakutsk, Russian Federation
Yakutsk, Russian Federation
Irkutsk, Russian Federation
Fukuoka, Japan
Fukuoka, Japan
Pekin, China
Quasi-periodic changes of the geomagnetic field and plasma parameters in the range of Pc 5 pulsations, which occurred immediately after the interaction of interplanetary shock (IPS) with Earth’s magnetosphere in the event of April 24, 2009 at 00:53 UT are examined using ground and satellite observations. The pulsations were localized at latitudes 66–74° in the noon (11 MLT) and evening (20 MLT) sectors. The analysis of hodographs of the geomagnetic field changes both from satellite and ground observations has shown the presence of vortical disturbances. In this event, both the IPS front in the interplanetary medium and the compression wave front in the magnetosphere had a slope in the ZGSM=0 plane; the inclination angle was 14° in the interplanetary medium and 34° in the magnetosphere.
interplanetary shock, sudden geomagnetic impulse, geomagnetic pulsations, shear flow
1. Araki T. A physical model of the geomagnetic sudden commencement. Solar wind sources of magnetospheric ultra-low-frequency waves. AGU, Washington, D.C., 1994. (Geophys. Monograph. Ser., vol. 81).
2. Keiling A., Angelopoulos V., Runov A., Weygand J., Apatenkov S.V., Mende S., McFadden J., Larson D., Amm O., Glassmeier K.-H., Auster H.U. Substorm current wedge driven by plasma flow vortices: THEMIS observations. J. Geophys. Res. 2009, vol. 114. DOI:https://doi.org/10.1029/2009JA014114.
3. Kepko L., Spence H.E., Singer H.J. ULF waves in the solar wind as direct drivers of magnetospheric pulsations. Geophys. Res. Lett. 2002, vol. 29, pp. 1197. DOI:10.1029/ 2001GL014405.
4. Kepko L., Spence H.E. Observations of discrete, global magnetospheric oscillations directly driven by solar wind density variations. J. Geophys. Res. 2003, vol. 108, pp. 1257. DOI:https://doi.org/10.1029/2002JA009676.
5. Kessel R.L., Mann I.R., Fung S.F., Milling D.K., O’Connell N.: Correlation of Pc5 wave power inside and outside the magnetosphere during high speed streams. Ann. Geophys. 2004, vol. 22, pp. 629-641.
6. Kim K.-H., D.-H. Lee, K. Shiokawa, E. Lee, J.-S. Park, H.-J. Kwon, V. Angelopoulos, Y.-D. Park, J. Hwang, N. Nishitani, T. Hori, K. Koga, T. Obara, K. Yumoto, and D.G. Baishev. Magnetospheric responses to the passage of the interplanetary shock on 24 November 2008. J. Geophys. Res. 2012, vol. 117, A10, 209. DOIhttps://doi.org/10.1029/2012JA017871.
7. Mishin V.V. Accelerated motions of the magnetopause as a trigger of the Kelvin-Helmholtz instability. J. Geophys. Res. 1993, vol. 98, pp. 21365-21372.
8. Moiseyev A.V., Popov V.I., Mullayarov V.A., Samsonov S.N., Du A. Generation of different long-period geomagnetic pulsations during a sudden impulse. Cosmic Res. 2015, vol. 53, no. 4, pp. 257-266.
9. Moretto T., Hesse M., Yahnin A., Ieda A., Murr D., Watermann J. Magnetospheric signature of an ionospheric traveling convection vortex event. J. Geophys. Res. 2002, vol. 107. DOI:https://doi.org/10.1029/2001JA000049.
10. Nedie A.Z., Rankin R., Fenrich F.R. SuperDARN observations of the driver wave associated with FLRs. J. Geophys. Res. 2012, vol. 117. DOI:https://doi.org/10.1029/2011JA017387.
11. Nishida A. Geomagnetic diagnosis of the magnetosphere. Moscow: Mir Publ., 1980. 299 s.
12. Parkhomov V.A., Mishin V.V., Borovik L.V. Long-period geomagnetic pulsations caused by the solar wind negative pressure impulse on March 22, 1979 (CDAW-6). Ann. Geophys. 1998, vol. 16, pp. 134-139.
13. Saito T., Matsushita S. Geomagnetic pulsations associated with sudden commencements and sudden impulses. Planet. Space Sci. 1967, vol. 15, pp. 573-587.
14. Samsonov A.A. MGD modelirovanie magnitosloja i vozdejstvie na magnitosferu mezhplanetnyh udarnyh voln [MHD modeling of magnetosheath and impact of interplanetary shock waves on the magnetosphere]. Dr. phys. and math. sci. diss. Sankt-Peterburg, 2013. 357 p. (In Russian).
15. Schwartz S.J. Shock and Discontinuity Normals, Mach Numbers, and Related Parameters. Analysis Methods for Multi-Spacecraft Data. 1998, p. 249-270 (ISSI Scientific Rep. Ser., ESA/ISSI, vol. 1, ISBN 1608-280X).
16. Shi Q.Q., Hartinger M.D., Angelopoulos V., Tian A.M., Fu S.Y., Zong Q.-G., Weygand, J.M., Raeder J., Pu Z.Y., Zhou X.Z., Dunlop M.W., Liu W.L., Zhang H., Yao Z.H., Shen X.C. Solar wind pressure pulse driven magnetospheric vortices and their global consequences. J. Geophys. Res. 2014, vol. 119, pp. 4274-4280.
17. Slinker S.P., Fedder J.A., Hughes W.J., Lyon J.G. Response of the ionosphere to a density pulse in the solar wind: Simulation of traveling convectionvortices. Geophys. Res. Lett. 1999, vol. 26, pp. 3549-3552.
18. Takeuchi T., Araki T., Viljanen A., Watermann J. Geomagnetic negative sudden impulses: Interplanetary causes and polarization distribution. J. Geophys. Res. 2002, vol. 107, pp. 1096-1109.
19. Vorobyev V.G. Impulsive phenomena in dayside high latitude region. Physics of near-Earth space. Chapter 1. Apatity: KSC RAS, 2000, pp. 86-144. (In Russian).
20. Yahnin A.G., Titova E., Lubchich A., Bosinger T., Manninen J., Turunen T., Hansen T., Troshichev O., Kotikov A. Dayside high latitude magnetic impulsive events: Their characteristics and relationship to the sudden impulses. J. Atmos. Terr. Phys. 1995, vol. 57, pp. 1569-1582.
