The investigation of the pulsation spatial structure was based on the solution of direct problems of MHD-wave propagation. In this chapter, we shall show how the developed concepts can be adapted to the inverse problems, to determine the magnetospheric cold plasma distribution and to study the Earth's crust conductivity by using either ground or satellite ULF-observations.
We will consider a method of ground-based magnetospheric plasma monitoring based on the FLR-theory (see Chapter 6). In this method the distribution of Alfvén velocity and, thus, plasma density, along a field line is obtained from the FLR-frequencies. To this end, the inverse problem is reduced to a spectral problem. The FLR-frequencies are found from the geomagnetic pulsations.
The Earth's crust conductivity is determined by methods known as magnetotelluric sounding (MTS)([10], [32]). The method is based on simultaneous measuring of electric and magnetic fields in the ULF-range. Numerous papers and monographs have been devoted to this topic. However, little attention has been devoted to the influence of magnetospheric peculiarities of MHD-wave propagation and excitation. We shall study the role of resonance magnetic shells in interpreting data of ground-based MTS as well as the possibility of an above ionosphere MTS from low-orbit satellites.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
Alperovich, L. S. and E. N. Fedorov, Effect of the ionosphere on the propagation of beams of MHD waves, Radiophysics and Quantum Electronics, 27, 864, 1984.
Alperovich, L. S. and E. N. Fedorov, The role of the finite conductivity of the ground in the spatial distributions of geomagnetic pulsations, Izv. Ac. Sc. USSR, Physics of the Solid Earth, 20, 858, 1984.
Alperovich, L. S. and E. N. Fedorov, The propagation of hydromagnetic waves through the ionospheric plasma and spatial characteristics of the geomagnetic variations, Geomagn. Aeron., 24, 529, 1984.
Alperovich, L. S. and E. N. Fedorov, On hydromagnetic wave beams propagation through the ionosphere, Ann. Geoph., 10, 647, 1992.
Alperovich, L. S. and E. N. Fedorov, The satellite electromagnetic sounding of the Earth, Adv. Space Res., 13, (11)23-(11)34, 1993.
Alperovich, L. S., E. N. Fedorov, and T. B. Osmakova, Characteristics of telluric field near resonance magnetic shell, Izvestia Ac. Sci. USSR, Physics of the Solid Earth, 7, 23, 1991.
Baransky, L. N., Yu. E., Borovkov, M. B. Gochberg, S. M. Krylov, and V. A. Troitskaya, High resolution method of direct measurement of the magnetic field-lines eigenfrequencies, Planet. Space Sci., 33, 1369,1985.
Baransky, L. N., S. P. Belokris, Y. E. Borovkov, M. B. Gokhberg, E. N. Fedorov, and C. A. Green, Restoration of the meridional structure of geomagnetic pulsation fields from gradient measurements, Planet. Space Sci., 37, 859, 1989.
Baransky, L. N., S. P. Belokris, U. E. Borovkov, and C. A. Green, Two simple methods for the determination of the resonance frequencies of magnetic fieldlines, Planet. Space Sci., 38, 1573-1576, 1990.
Cagniard, L., Basic theory of the magnetotelluric method of geophysical prospecting, Geophysics, 18, 605-635, 1953.
Chappel, C. R. and K. K. Harris, A study of the influence of magnetic activity on the location of the plasmapause as measured by OGO-5, J. Geophys Res., 75,50,1970.
Dmitriev, V. I. and M. N. Berdichevsky, The fundamental model of magnetotelluric soundings, Proc. IEEE, 67, 1033, 1979.
. Dmitriev, V. I. and M. N. Berdichevsky, Fundamental model of magnetotelluric soundings, In Geomagnetic Investigations, M., Radio i sviaz, No. 27, 5, 1982.
Dungey, J. W., The structure of the exosphere, or, adventures in velocity, in Geophysics, The Earth’s Environment (Proceedings of the 1962 Les Houches Summer School ), 503, C. DeWitt, J. Hieblot, and A. Lebeau, eds, Gordon and Breach, NY, 1963.
Fedorov, E. N., B. N. Belenkaya, M. B. Gokhberg, S. P. Belokris, L. N. Baransky, and C. A. Green, Magnetospheric plasma density diagnosis from gradient measurements of geomagnetic pulsations, Planet. Space Sci., 38, 269-272, 1990.
Green, C., Meridional characteristis of P c-4 micropulsation event in the plasmasphere, Planet. Space Sci., 26, 955, 1978.
Green, A. W., E. W. Worthington, L. N. Baransky, E. N. Fedorov, N. A. Kurneva, V. A. Pilipenko, D. N. Shvetzov, A. A. Bektemirov, and G. V. Philipov, Alfvén field line resonances at low latitudes (L = 1.5), J. Geophys. Res., 98(A9), 15693,1993.
Guglielmi, A. V., Diagnostics of the magnetosphere and interplanetary medium by means of pulsations, Space Sci. Rev., 16, 331, 1974.
Gugliel’mi, A. V., Hydromagnetic diagnostics and geoelectric prospecting, Usp. Fiz. Nauk., 158, 605, 1989.
Gugliel’mi, A. V., Diagnostics of the plasma in the magnetosphere by means of measurement of the spectrum of Alfv ėn oscillations, Planet. Space Sci., 37, 1011,1989.
Hughes, W. J. and D. J. Southwood, The screening of micropulsation signals by the atmosphere and ionosphere, J. Geophys Res., 81, 3234, 1976.
. Kaufman, A. A., Electromagnetic Soundings, P. Hoekstra (Editor), Elsevier Science & Technology Books, Ser.: Methods in Geochemistry and Geophysics, 2001.
Lifshicz, A. E. and E. N. Fedorov, Hydromagnetic oscillations of the magnetosphere-ionosphere resonator. Doclady of the USSR Academy of Sciences, 287, No.1, 90, 1986.
Marchenko, V. A., Sturm-Liouville operators and application, Naukova dumka, Kiev, 1977.
Neubauer, F. M. and K. H. Glassmeier, Use of an array of satellites as a wave telescope. J. Geophys. Res., 95, 19115, 1990.
Obayshi, T., Geomagnetic pulsations and the Earth’s outer atmosphere, Ann. Geophy., 14, 464, 1958.
Park, C. G. and D. L. Carpenter, Electron density in the plasmasphere: whistler data on solar cycle, annual and diurnal variations, J. Geophys Res., 83, 3137, 1978.
Park, C. G., Technical report, N 3451-1 : Stanford University, Stanford, California, 1972.
. Pilipenko, V. A. and E. N. Fedorov, Magnetotelluric sounding of the crust and hydromagnetic monitoring of the magnetosphere with the use of ULF waves, in Solar Wind Sources of Magnetospheric Ultra-Low-Frequency Waves, Ed. M. J. Engebretson, K. Takahashi and M. Scholer, Geophysical Monograph, 81, AGU, 283,1994.
Pilipenko, V., K. Yumoto, E. Fedorov, and N. Yagova, Hydromagnetic spectroscopy of the magnetosphere with P c3 geomagnetic pulsations at 210 meridian, Ann. Geophys., 17, 53, 1999.
Takahashi, K., R. E. Denton, R. R. Anderson, and W. J. Hughes, Frequencies of standing Alfvén wave harmonics and their implication for plasma mass distribution along geomagnetic field-lines: Statistical analysis of CRRES data, J. Geoph. Res., 109 (A8), A08202, 2004.
Tichonov, A. N., On the definition of electric characteristics of deep layers of the Earth crust, (In Russian), Doklady Ak.Nauk USSR, 73, 295-297, 1950.
Walker, A. D. M. and R. A. Greenwald, Pulsation structure in the ionosphere derived from auroral radar data, J. Geomag. Geoelec., 32 , Suppl. II. 111, 1980.
Wait, J. R., Telluric currents and the Earth’s magnetic field, Geophysics, 19, 1954.
Rights and permissions
Copyright information
© 2007 Springer
About this chapter
Cite this chapter
(2007). ULF-Sounding of Magnetosphere and Earth. In: Hydromagnetic Waves in the Magnetosphere and the Ionosphere. Astrophysics and Space Science Library, vol 353. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6637-5_11
Download citation
DOI: https://doi.org/10.1007/978-1-4020-6637-5_11
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-6636-8
Online ISBN: 978-1-4020-6637-5
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)