Geomagnetic pulsations in 1–4 mHz frequency range (Pc5/Pi3) in the magnetotail at different levels of disturbances in the interplanetary medium
Abstract and keywords
Abstract (English):
In this paper, we study parameters of geomagnetic pulsations in the 1–4 mHz frequency range (Pc5/Pi3) in the magnetotail, utilizing data obtained by Cluster satellites at different levels of fluctuations in the interplanetary magnetic field (IMF) and the solar wind dynamic pressure in 2016. Particular attention is given to the conditions of “zero” disturbance when amplitudes of fluctuations in the interplanetary medium are smaller compared to their typical values. Both under quiet and disturbed conditions, waves of different spatial scales are recorded, with the occurrence rate of large-scale waves increasing under undisturbed conditions. Amplitudes of the large-scale waves occurring in the magnetotail under low intensity of fluctuations outside the magnetosphere are from few tenths to a few nanoteslas (nT), and their power is approximately equal in longitudinal and transverse components. Presumably, these waves are magnetotail eigen-modes.

magnetosphere, geomagnetic pulsations, magnetotail
Publication text (PDF): Read Download

1. Dzhenkins G., Vatts D. Spektral'nyy analiz i ego prilozheniya. Vyp. 2. M.: Mir, 1972. 287 s.

2. Leonovich A.S., Mazur V.A. Sobstvennye sverhnizkochastotnye magnitozvukovye kolebaniya blizhnego plazmennogo sloya. Kosmicheskie issledovaniya. 2008. T. 46, № 4. S. 336–343.

3. Leonovich A.S., Mazur V.A., Kozlov D.A. MGD-volny v geomagnitnom hvoste: obzor. Solnechno-zemnaya fizika. 2015. T. 1, № 1. S. 4–22. DOI: 10.12737/7168.

4. Mazur N.G., Fedorov E.N., Pilipenko V.A. MGD-volno-vody v kosmicheskoy plazme. Fizika plazmy. 2010. T. 6, № 7. S. 653–670.

5. Yagova N.V. Naklon spektra vysokoshirotnyh geomagnitnyh vozmuscheniy diapazona 1–5 mGc. Kontroliruyuschie parametry vne i vnutri magnitosfery. Geomagnetizm i aeronomiya. 2015. T. 55, № 1. S. 35–44. DOI: 10.7868/S0016794015010149.

6. Allan W., Wright A.N. Magnetotail waveguide: Fast and Alfvén waves in the plasma sheet boundary layer and lobe. J. Geophys. Res. 2000. Vol. 105. P. 317–328. DOI: 10.1029/1999JA900425.

7. Angelopoulos V. The THEMIS mission. Space Sci. Rev. 2008. Vol. 141, iss. 1-4. P. 5–34. DOI: 10.1007/s11214-008-9336-1.

8. Ballatore P, Lanzerotti L., Maclennan C.G. Multistation measurements of Pc geomagnetic power amplitudes at high latitudes. J. Geophys. Res. 1998. Vol. 103. P. 294555–294565. DOI: 10.1029/1998JA900035.

9. Cai C.L., Dandouras I., Rème H., et al. Foreshock-like density cavity in the outflow region of magnetotail reconnection. Ann. Geophys. 2009. Vol. 27. P. 3043–3053. DOI: 10.5194/angeo-27-3043-2009.

10. Escoubet C.P., Fehringer M., Goldstein M. The Cluster mission. Ann. Geophys. 2001. Vol. 19. P. 1197–1200. DOI: 10.5194/angeo-19-1197-2001.

11. Francia P., Lanzerotti L.J., Villante U., et al. A statistical analysis of low frequency magnetic 415 pulsations at cusp and cap latitudes in Antarctica. J. Geophys. Res. 2005. Vol. 110. A02205. DOI: 10.1029/2004JA0106802005.

12. Hasegawa H., Fujimoto M., Takagi K., et al. Single-spacecraft detection of rolled-up Kelvin—Helmholtz vortices at the flank magnetopause. J. Geophys. Res. 2006. Vol. 111, 9203. DOI: 10.1029/2006JA011728.

13. Heacock R.R., Chao J.K. Type Pi magnetic field pulsations at very high latitudes and their relation to plasma convection in the magnetosphere. J. Geophys. Res. 1980. Vol. 85. P. 1203–1213.

14. Kim K.-H., Cattell C.A., Lee D.-H., et al. Cluster observations in the magnetotail during sudden and quasiperiodic solar wind variations. J. Geophys. Res. 2004. Vol. 109, A04219. DOI: 10.1029/2003JA010328.

15. Nosikova N.S., Yagova N.V., Baddeley L.J., et al. An investigation into the spectral parameters of ultra-low-frequency (ULF) waves in the polar caps and magnetotail. Ann. Geophys. 2022. Vol. 40. P. 151–165. DOI: 10.5194/angeo-40-151-2022.

16. Patel V.L. Magnetospheric tail as a hydromagnetic waveguide. Phys. Lett. A. 1968. Vol. 26. P. 596–597. DOI: 10.1016/ 0375-9601(68)90141-2.

17. Reddy R.V., Lakhina G.S. Shear flow instabilities in the Earth’s magnetotail. Ann. Geophys. 1996. Vol. 14. P. 786–793. DOI: 10.1007/s00585-996-0786-z.

18. Sarafopoulos D.V., Sarris E.T. Quiet-time Pc5 pulsations in the Earth’s magnetotail: IMP-8, ISEE-1 and ISEE-3 simultaneous observations. Ann. Geophys. 1994. Vol. 12. P. 121–138. DOI: 10.1007/s00585-994-0121-5.

19. Sarafopoulos D.V. Long duration Pc5 compressional pulsations inside the Earth’s magnetotail lobes. Ann. Geophys. 1995. Vol. 13. P. 926–937. DOI: 10.1007/s00585-995-0926-x.

20. Sergeev V.A., Sormakov D.A., Apatenkov S.V., et al. Survey of large-amplitude flapping motions in the midtail current sheet. Ann. Geophys. 2006. Vol. 24. P. 2015–2024. DOI: 10.5194/angeo-24-2015-2006.

21. Siscoe G.L. Resonant compressional waves in the geomagnetic tail. J. Geophys. Res. 1969. Vol. 74. P. 6482–6486. DOI: 10.1029/JA074i026p06482.

22. Tsutomu T., Teruki M. Flapping motions of the tail plasma sheet induced by the interplanetary magnetic field variations. Planet. Space Sci. 1976. Vol. 24. P. 147–159. DOI: 10.1016/0032-0633(76)90102-1.

23. Walker A.D.M., Ruohoniemi J.M., Baker K.B., et al. Spectral properties of magnetotail oscillations as a source of Pc5 pulsations. Adv. Space Res. 1993. Vol. 13. P. 59–65. DOI: 10.1016/0273-1177(93)90313-Z.

24. Wang G.Q., Zhang T.L., Ge Y.S. Spatial distribution of magnetic fluctuation power with period 40 to 600 s in the magnetosphere observed by THEMIS. J. Geophys. Res. Space Phys. 2015. Vol. 120. P. 9281–9293. DOI: 10.1002/2015JA021584.

25. Yagova N.V., Pilipenko V.A., Lanzerotti L.J., et al. Two-dimensional structure of long-period pulsations at polar latitudes in Antarctica. J. Geophys. Res. 2004. Vol. 109. A03222. DOI: 10.1029/2003JA010166.

26. Yagova N.V., Pilipenko V.A., Baransky L.N., Engebretson M.J. Spatial distribution of spectral parameters of high latitude geomagnetic disturbances in the Pc5/Pi3 frequency range. Ann. Geophys. 2010. Vol. 28. P. 1761–1775.

27. Yagova N., Nosikova N., Baddeley L., et al. Non-triggered auroral substorms and long-period (1–4 mHz) geomagnetic and auroral luminosity pulsations in the polar cap. Ann. Geophys. 2017. Vol. 35. P. 365–376. DOI: 10.5194/angeo-35-365-2017.

28. Zhang T.L., Baumjohann W., Nakamura R., et al. A wavy twisted neutral sheet observed by CLUSTER. Geophys. Res. Lett. 2002. Vol. 29, 1899. DOI: 10.1029/2002GL015544.

29. Zhang S., Tian A., Shi Q., et al. Statistical study of ULF waves in the magnetotail by THEMIS observations. Ann. Geophys. 2018. Vol. 36. P. 1335–1346. DOI: 10.5194/angeo-36-1335-2018.

30. URL: (data obrascheniya 20 fevralya 2022 g.).

31. URL: (data obrascheniya 20 fevralya 2022 g.).

Login or Create
* Forgot password?