Natural Hazards and Earth System Science
www.nat-hazards-earth-syst-sci.net
1561-8633
1684-9981
8
1
2008
10.5194/nhess-8-101-2008
http://www.nat-hazards-earth-syst-sci.net/8/101/2008/
http://www.nat-hazards-earth-syst-sci.net/8/101/2008/nhess-8-101-2008.html
http://www.nat-hazards-earth-syst-sci.net/8/101/2008/nhess-8-101-2008.pdf
101
107
2008-02-21
Quasi-static electric fields phenomena in the ionosphere associated with pre- and post earthquake effects
M. Gousheva
gousheva@space.bas.bg
D. Danov
P. Hristov
M. Matova
Space Research Institute, Bulgarian Academy of Sciences, Sofia, Bulgaria
Solar-Terrestrial Influences Laboratory, Bulgarian Academy of Sciences, Sofia, Bulgaria
Geological Institute, Bulgarian Academy of Sciences, Sofia, Bulgaria
To prove a direct relationship between the quasi-static electric field
disturbances and seismic activity is a difficult, but actual task of the
modern ionosphere physics. This paper presents new results on the processing
and analysis of the quasi-static electric field in the upper ionosphere (<i>h</i>=800–900 km) observed from the satellite INTERCOSMOS-BULGARIA-1300 over
earthquakes' source regions (seismic data of World Data Center, Denver,
Colorado, USA). Present research focuses on three main areas (i)
development of methodology of satellite and seismic data selecting, (ii)
data processing and observations of the quasi-static electric field (iii)
study and accumulation of statistics of possible connection between
anomalous vertical electric fields penetrating from the earthquake zone into
the ionosphere, and seismic activity. The most appropriate data (for
satellite orbits above sources of forthcoming or just happened seismic
events) have been selected from more than 250 investigated cases.The
increase of about 5-10-15 mV/m in the vertical component of the quasi-static
electric field observed by INTERCOSMOS-BULGARIA-1300 during seismic activity
over Southern Ocean, Greenland Sea, South-Weat Pacific Ocean, Indian Ocean,
Central America, South-East Pacific Ocean, Malay Archipelago regions are
presented. These anomalies, as phenomena accompanying the seismogenic
process, can be considered eventually as possible pre-, co- (coeval to) and
post-earthquake effects in the ionosphere.
Chmyrev, V. M., Isaev, N. V., Bilichenko, S. V., and Stanev, G. A.: Observation by space-born detectors of electric field and hydromagnetic waves in the ionosphere over an earthquake centre, Phys. Earth Planet. In., 57, 1–2, 110–114, 1989.
Gousheva, M., Glavcheva, R., Danov, D., Angelov, P., and Hristov, P.: Influence of earthquakes on the electric field disturbances in the ionosphere on board of the Intercosmos-Bulgaria-1300 satellite, Compt. Rend. Acad. Bulg. Sci., 58, 8, 911–916, 2005a.
Gousheva, M., Glavcheva, R., Danov, D., Angelov, P., Hristov, P., Kirov, B., and Georgieva, K.: Observation From The Intercosmos-Bulgaria-1300 Satellite Of Anomalies In The Ionosphere Associated With Seismic Activity, Poster Proceedings of 2nd International Conference on Recent Advances in Space Technologies: Space in the Service of Society, RAST'2005, June 9–11, 2005, Istanbul, Turkey, 119–123, 2005b.
Gousheva, M., Glavcheva, R., Danov, D., and Boshnakov, I.: Satellite observations of ionospheric disturbances associated with seismic activity, Compt. Rend. Acad. Bulg. Sci., 59, 8, 821–826, 2006a.
Gousheva, M., Glavcheva, R., Danov, D., Angelov, P., Hristov, P., Kirov, B, and Georgieva, K.: Satellite monitoring of anomalous effects in the ionosphere probably related to strong earthquakes, Adv. Space Res., 37, 4, 660–665, 2006b.
Gousheva, M., Glavcheva, R., Danov, D., Hristov, P., Kirov, B., and Georgieva, K.: Possible pre- and post- earthquake effects in the ionosphere, IEEE Proceedings of 3rd International Conference on Recent Advances in Space Technologies, June 14–16, 2007, Istanbul, Turkey, 754–759, 2007.
Hepper, J. P.: Empirical models of high-latitude electric field, J. Geophys. Res., 82, 1115–1125, 1977.
Heppner, J. P. and Maynard N. C.: Empirical High-Latitude Electric Field Models, J. Geophys. Res., 92, 4467–4489, 1987.
Heelis, R. A., Lowell, J. K., and Spiro, R. W.: A model of the high-latitude ionospheric convection pattern, J. Geophys. Res., 87, 6339–6345, 1982.
Isaev, N. V., Sorokin, V. M., Serebryacova, O. N., Stanev, G. A., Yaschenko, A. K., and Trushkina, E. P.: Electric field enhancement and disturbances of plasma density in the ionospher above the zones of preparation and development of typhoons, available at: http://www.space.bas.bg/astro/ses2006/Cd/Ph3.pdf (last access: 14 June 2006), 2006.
Pedersen, A., Cattell, C. A., Falthammar, C.-G., Formisano, V., Lindqvist, P.-A., Mozer, F., and Torbert, R.: Quasistatic electric field measurements with spherical double probes on the GEOS and ISEE satellites, Space Sci. Rev., 37, 269–312, 1984.
Pedersen, A., Mozer, F., and Gustafsson, G.: Electric field measurements in a tenuous plasma with spherical double probes, in: Measurement Techniques in Space Plasmas: Fields (AGU Geophysical Monograph, 103), edited by: Borovsky, J., Pfaff, R., and Young, D., American Geophysical Union, 1–12, 1998.
Rapoport, Y., Grimalsky, V., Hayakawa, M., Ivchenko, V., Juarez, R., Koshevaya, S., and Gotynyan, O.: Change of ionospheric plasma parameters under the influence of electric field which has litospheric origin and due to radon emanation, Phys. Chem. Earth, 29, 579–587, 2004.
Sorokin, V. M., Chmyrev, V. M., and Yaschenko, A. K.: Electrodynamic model of the lower atmosphere and ionosphere coupling, J. Atmos. Solar-Terr. Phys., 63, 1681–1691, 2001a.
Sorokin, V. M., Chmyrev, V. M., and Yaschenko, A. K.: Perturbation of the electric field in the Earth-ionospherhe layer at the charget aerosols injection, Geomagnetism and Aeronomy, 41, 2, 187–191, 2001b.
Sorokin, V. M., Chmyrev, V. M., and Yaschenko, A. K.: Possible DC electric field in the ionosphere related to seismicity, Adv. Space Res., 37, 4, 666–670, 2006.
Sorokin, V. M. and Yaschenko, A. K.: Electric field disturbances in the Earth-ionosphere layer, Adv. Space Res., 26, 8, 1219–1223, 2000.
Sorokin, V. M., Yaschenko A. K., Chmyrev, V. M., and Hayakawa, M.: DC electric field amplification in the Mid-latitude ionosphere over seismically active faults, Nat. Hazards Earth Syst. Sci., 5, 661–666, 2005a.
Sorokin, V. M., Isaev, N. V., Yaschenko, A. K., Chmyrev, V. M., and Hayakawa, M.: Strong DC electric field formation in the low latitude ionosphere over typhoons, J. Atmos. Solar-Terr. Phys., 67, 14, 1269–1279, 2005b.