Abstract
The fundamental nature of ULF waves in the Pc5 range driven by periodic variation of solar-wind dynamic pressure is studied by using a global MHD simulation. It is shown that a spectrum of the magnetospheric ULF wave induced from the periodic variation has a harmonic structure due to nonlinear behavior of magnetospheric response to the solar wind variation. Our simulation also reveals that magnetopause motion is static for the periodic solar wind variation with a period of 10 min, which is consistent with the THEMIS observation of the magnetopause. For a ULF wave with a period of 10 min, the inertia current is significant in the magnetosphere when magnetospheric pressure is depressed under the northward IMF condition, whereas the diamagnetic current is dominant when the pressure is enhanced under the southward IMF condition.
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References
Elkingston SR, Hudson MK (1999) Acceleration of relativistic electrons via drift-resonant interaction with toroidal-mode Pc-5 ULF pulsations. Geophys Res Lett 26:3237–3276
Fujita S, Glassmeier K-H, Kamide K (1996) MHD waves generated by the Kelvin-Helmholtz instability in a nonuniform magnetosphere. J Geophys Res 101:27317–27325
Glassmeier K-H, Auster H-U, Constantinescu D, Fornaccon K-H, Narita Y, Plaschke F, Angelopoulos V, Georgescu E, Baumjohann W, Magnes W, Nakamura R, Carlson CW, Frey S, McFadden JP, Phan T, Mann I, Rae IJ, Vogt J (2008) Magnetospheric quasi-static response to the dynamic magnetosheath: A THEMIS case study. Geophys Res Lett 35:L17S01. doi:10.1029/2008GL033469
Harrold BG, Samson JC (1992) Standing ULF modes of the magnetosphere: A theory. Geophys Res Lett 19:1811–1814
Kepko L, Spence HE (2003) Observations of discrete, global magnetospheric oscillations directly driven by solar wind density variations. J Geophys Res 108(A6):1257. doi:10.1029/2002JA009676
Kivelson MG (2006) ULF waves from the ionosphere to the outer planets. In: Takahashi K et al (eds) Magnetospheric ULF Waves: synthesis and new directions, American Geophysical Union, pp 11–30.
Kivelson MG, Etcheto J, Trotignon JG (1984) Global compressional oscillations of the terrestrial magnetosphere: The evidence and a model. J Geophys Res 89:9851–9856
Mathie RA, Mann IR (2001) On the solar wind control of Pc5 ULF pulsation power at mid-latitudes: Implications for MeV electron acceleration in the outer radiation belt. J Geophys Res 106(A12):29783–29796
Motoba T, Fujita S, Kikuchi T, Tanaka T (2007) Solar wind dynamic pressure forced oscillation of the magnetosphere-ionosphere coupling system: A numerical simulation of directly pressure-forced geomagnetic pulsations. J Geophys Res 112:A11204. doi:10.1029/2006JA012193
Plaschke F, Glassmeier K-H, Auster HU, Angelopoulos V, Constantinescu OD, Fornaccon K-H, Georgescu E, Magnes W, McFadden JP, Nakamura R (2009a) Standing Alfven waves at the magnetopause. J Geophys Res 114:A00C10. doi:10.1029/2008JA013423
Plaschke F, Glassmeier K-H, Auster HU, Constantinescu OD, Magnes W, Angelopoulos V, Sibeck DG, McFadden JP (2009b) Statistical study of the magnetopause motion: First results from THEMIS. Geophys Res Lett 36:L02104. doi:10.1029/2008GL036411
Samson JC, Harrold BG, Ruohoniemi JM, Greenwald RA, Walker ADM (1992) Field line resonances associated with MHD waveguides in the magnetosphere. Geophys Res Lett 19:441–444
Takahashi K, Ukhorskiy AY (2007) Solar wind control of Pc5 pulsation power at geosynchronous orbit. J Geophys Res 112:A11205. doi:10.1029/2007JA012483
Tanaka T (2002) Finite volume TVD scheme on unstructured grids for space MHD simulations and space weather. In: Proceeding of simulation school at Nagoya, Nagoya, 2002
Viall NM, Kepko L, Spence HE (2009) Relative occurrence rates and connection of discrete frequency oscillations in the solar wind density and dayside magnetosphere. J Geophys Res 114:A01201. doi:10.1029/2008JA013334
Acknowledgments
This work has been done with the OneSpaceNet of National Institute of Information and Communication Technologies, LHD system of National Institute of Fusion Research, and computers installed in Nagoya University.
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Fujita, S., Tanaka, T., Motoba, T. (2011). Long-Period ULF Waves Driven by Periodic Solar Wind Disturbances. In: Liu, W., Fujimoto, M. (eds) The Dynamic Magnetosphere. IAGA Special Sopron Book Series, vol 3. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0501-2_3
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DOI: https://doi.org/10.1007/978-94-007-0501-2_3
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