Skip to main content
Earth, Planets and Space
Download PDF

Volume 56 Supplement 2

Special Issue: Special section for IUGG workshop: Lithospheric Structure of a Supercontinent:Gondwana

  • Article
  • Published:

SC related electric and magnetic field phenomena observed by the Akebono satellite inside the plasmasphere

Earth, Planets and Space volume 56, pages 269–282 (2004)Cite this article

Abstract

Electric and magnetic field variations inside the plasmasphere associated with SCs identified on the ground are analyzed based on the Akebono satellite observations which have been carried out more than 13 years since March 1989. 126 electric field observation data corresponding to SCs show abrupt change of intensity as well as direction within a few minutes inside the plasmasphere. Temporal variations of the electric field showed a bipolar waveform with the amplitude range of 0.2–38 mV/m. The electric field signature is followed by a dumping oscillation with the period of Pc3–4 ranges. The magnetic field variations of 33 SCs also show an abrupt increase of 0.2–65 nT within a few minutes, which indicate the compression of the magnetosphere due to the discontinuity of solar wind. The initial excursion of the electric field during SCs tends to be directed westward. The amplitude does not show a dependence on magnetic local time that has been observed outside the plasmasphere. The magnitude of the electric field variations tends to be proportional with the power of 0.6 to the magnetic field variation in the plasmasphere. The Poynting vector of the initial SC impulse is directed toward the earth, which suggests that energy of magnetic disturbances associated with SCs propagates toward the earth inside the plasmasphere with the refraction due to the plasma density gradient. One of the most interesting results from the present study is that a DC offset of the Ey component of the electric field appears after the initial electric field impulse associated with SCs. This signature is interpreted to be a magnetospheric convection electric field penetration into the inner plasmasphere (L = 2.5). The intensity of the offset of the Ey field gradually increases by 0.5–2.0 mV/m about 1–2 minutes after the onset of the initial electric field impulse and persists about 10–30 minutes.

References

  • Araki, T., Global structure of geomagnetic sudden commencements, Planet. Space Sci., 25, 373–384, 1977.

    Article  Google Scholar 

  • Araki, T., A model of geomagnetic sudden commencement, Proc. of Symposium on Quantitative Modeling of Magnetosphere-Ionosphere Coupling Processes, 47–52, March, 1987.

    Google Scholar 

  • Araki, T., A Physical Model of the Geomagnetic Sudden Commencement, AGU Geophys. Monogr., 81, pp. 183–200, 1994.

    Google Scholar 

  • Cahill, L. J., N. G. Waite, M. J. Engebretson, and M. Sugiura, Toroidal standing waves excited by a storm sudden commencement: DE1 observations, J. Geophys. Res., 95, 7857–7867, 1990.

    Article  Google Scholar 

  • Chappell, C. R., K. K. Harris, and G. W. Sharp, A study of the influence of magnetic activity on the location of the plasmapause as measured by OGO 5, J. Geophys. Res., 75, 50–56, 1970.

    Article  Google Scholar 

  • Fujita, S., T. Tanaka, T. Kikuchi, K. Fujimoto, K. Hosokawa, and M. Itonaga, A numerical simulation of the geomagnetic sudden commencement: 1. Generation of the field-aligned current associated with the preliminary impulse, J. Geophys. Res., 108, 1416, doi:10.1029/2002JA009407, 2003.

  • Fukunishi, H., R. Fujii, S. Kokubun, K. Hayashi, T. Tohyama, Y. Tonegawa, S. Okano, M. Sugiura, K. Yumoto, I. Aoyama, T. Saito, T. Iijima, A. Nishida, and M. Natori, Magnetic field observations on the Akebono (EXOS-D) satellite, J. Geomag. Geoelectr., 42, 385–409, 1990.

    Article  Google Scholar 

  • Gail, W. B. and U. S. Inan, Characteristics of wave-particle interactions during sudden commencements 2. spacecraft observations., J. Geophys. Res., 95, 139–147, 1990.

    Article  Google Scholar 

  • Gail, W. B., U. S. Inan, R. A. Helliwell, D. L. Carpenter, S. Krishnaswamy, T. J. Rosenberg, and L. J. Lanzerotti, Characteristics of wave-particle interactions during sudden commencements 1. Ground based observations, J. Geophys. Res., 95, 119–137, 1990.

    Article  Google Scholar 

  • Harris, K. K., G. W. Sharp, and C. R. Chappell, Observation of the plasmapause from OGO 5, J. Geophys. Res., 75, 219–224, 1970.

    Article  Google Scholar 

  • Hayakawa, H., T. Okada, M. Ejiri, A. Kadokura, Y.-I. Kohno, K. Maezawa, S. Machida, A. Matsuoka, T. Mukai, M. Nakamura, A. Nishida, T. Obara, Y. Tanaka, F. S. Mozer, G. Haerendel, and K. Tsuruta, Electric field measurement on the Akebono (EXOS-D) satellite, J. Geomag. Geoelectr., 42, 371–385, 1990.

    Article  Google Scholar 

  • Hirasawa, T., Effects of magnetospheric compression and expansion on spectral structure of ULF emission, Mem. Natl. Inst. Polar Res., Spec. Issue Jpn., 18, 127–151, 1981.

    Google Scholar 

  • Iyemori, T. and D. R. K. Rao, Decay of the dust field of geomagnetic disturbance after substorm onset and its implication to storm-substorm relation, Ann. Geophys., 14, 608–618, 1996.

    Article  Google Scholar 

  • Knott. K., A. Pedersen, and U. Wedeken, GEOS 2 electric field observation during a sudden commencement and subsequent substorm, J. Geophys. Res., 90, 1283–1288, 1985.

    Article  Google Scholar 

  • Kikuchi, T., Evidence of transmission of polar electric fields to the low latitude at times of geomagnetic sudden commencements, J. Geophys. Res., 91, 3101–3105, 1986.

    Article  Google Scholar 

  • Kokubun, S., Characteristics of storm sudden commencement at geostationary orbit, J. Geophys. Res., 88, 10025–10033, 1983.

    Article  Google Scholar 

  • Kuwashima, M. and H. Fukunishi, Local time asymmetries of the SSC-associated hydromagnetic variations at the geosynchronous altitude, Planet. Space Sci., 33, 711–720, 1985.

    Article  Google Scholar 

  • Laakso, H. and R. Schmidt, Pc 4-5 pulsation in the electric field at geostationary orbit (GEOS2) triggered by sudden storm commencements, J. Geophys. Res., 94, 6626–6632, 1989.

    Article  Google Scholar 

  • Ondoh, T., Magnetospheric sudden impulses, J. Radio Res. Labs. Jpn., 17, 199–213, 1968.

    Google Scholar 

  • Osaki, H., K. Takahashi, H. Fukunishi, T. Nagatsuma, H. Oya, A. Matsuoka, and D. K. Milling, Pi2 pulsations observed from the Akebono satellite in the plasmasphere, J. Geophys. Res., 103, 17605–17615, 1998.

    Article  Google Scholar 

  • Oya, H., A. Morioka, K. Kobayashi, M. Iizima, T. Ono, H. Miyaoka, T. Okada, and T. Obara, Plasma wave observation and sounder experiments (PWS) using the Akebono (EXOS-D) satellite—Instrumentation and initial results including discovery of the high altitude equatorial plasma turbulence, J. Geomag. Geoelectr., 42, 411–422, 1990.

    Article  Google Scholar 

  • Patel, V. L. and P. J. Coleman, Jr., Sudden impulses in the magnetosphere, observed at synchronous orbit, J. Geophys. Res., 84, 7213–7222, 1970.

    Google Scholar 

  • Schmidt, R. and A. Pedersen, Signature of storm sudden commencements in the electric field measured at geostationary orbits (GEOS-2), Physica Scripta, 491, 1987.

  • Shinbori, A., T. Ono, and H. Oya, SC-triggered plasma waves observed by the Akebono satellite in the polar regions and inside the plasmasphere, Adv. Polar Atmos. Res., 16, 126–135, 2002.

    Google Scholar 

  • Shinbori, A., T. Ono, M. Iizima, A. Kumamoto, and H. Oya, SC-related kilometric and hectometric radiations observed by the Akebono satellite in the polar regions, Adv. Polar Atmos. Res., 17, 60–76, 2003a.

    Google Scholar 

  • Shinbori, A., T. Ono, M. Iizima, A. Kumamoto, and H. Oya, Sudden commencements related plasma waves observed by the Akebono satellite in the polar region and inside the plasmasphere region, J. Geophys. Res., 108, 1457, doi:10.1029/2003JA009964, 2003b.

    Article  Google Scholar 

  • Wilken, B., C. K. Goertz, D. N. Baker, P. R. Higbie, and T. A. Fritz, The SSC on July 29, 1977 and its propagation within the magnetosphere, J. Geophys. Res., 87, 5901–5910, 1982.

    Article  Google Scholar 

  • Wilson, G. R., W. J. Burke, N. C. Maynard, C. Y. Huang, and H. J. Singer, Global electrodynamics observed during the initial and main phase of the July 1991 magnetic storm, J. Geophys. Res., 106, 24517–24539, 2001.

    Article  Google Scholar 

  • Wygant, J., F. Mozer, M. Temerin, J. Blake, N. Maynard, H. Singer, and M. Smiddy, Large amplitude electric field and magnetic field signatures in the inner magnetosphere during injection of 15 MeV electron drift echoes, Geophys. Res. Lett., 21, 1739–1742, 1994.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Geophysical Institute, Tohoku University, Sendai, 980-8578, Japan

    A. Shinbori, T. Ono, M. Iizima & A. Kumamoto

Authors
  1. A. Shinbori
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. T. Ono
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. M. Iizima
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. A. Kumamoto
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to A. Shinbori.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Shinbori, A., Ono, T., Iizima, M. et al. SC related electric and magnetic field phenomena observed by the Akebono satellite inside the plasmasphere. Earth Planet Sp 56, 269–282 (2004). https://doi.org/10.1186/BF03353409

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1186/BF03353409

Key words