Ionospheric oscillations caused by geomagnetic Pi2 pulsations and their observations by multipoint continuous Doppler sounding; first results |
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Authors: | J Chum F Hruška D Burešová T Šindelářová P Hejda J Bochníček |
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Institution: | 1. Institute of Atmospheric Physics, Bocni II/1401, 14131 Prague, Czech Republic;2. Geophysical Institute, Bocni II/1401, 14131 Prague, Czech Republic |
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Abstract: | In 2004, we started operating a continuous Doppler sounding system to investigate ionospheric signatures of infrasonic, short period acoustic gravity waves and geomagnetic pulsations. Since January 2007, four stable 3.59 MHz transmitters have been in operation in the western part of the Czech Republic. Multipoint measurements enable us to investigate horizontal propagation of waves and disturbances in the ionosphere and to estimate horizontal distances over which these waves (disturbances) are correlated. |
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Keywords: | Magnetosphere&ndash ionosphere interactions Ionosphere irregularities Geomagnetic pulsations Doppler sounding Magneto-hydrodynamic (ULF) waves |
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