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Sporadic structures and small-scale irregularity in the nighttime polar ionosphere in the period of high solar activity according to the data of radio occultation measurements on satellite-to-satellite paths

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Abstract

Results of the analysis of 327 sessions of radio occultation on satellite-to-satellite paths are presented. The data are taken in the nighttime polar ionosphere in the regions with latitudes of 67°–88°, and in the period of high solar activity from October 26, 2003 to November 9, 2003. Typical ionospheric changes in the amplitude and phase of decimeter radio waves on paths GPS satellites-CHAMP satellite are presented. It is demonstrated that these data make it possible to determine characteristics of the sporadic E s structures in the lower ionosphere at heights of 75–120 km. Histograms of distribution of the lower and upper boundaries, thickness, and intensity of the E s structures are presented. Dispersion and spectra of amplitude fluctuations of decimeter radio waves caused by small-scale irregularity of the ionospheric plasma are analyzed. The relation of the polar E s structures and intensity of small-scale plasma irregularity to various manifestations of solar activity is discussed. The efficiency of monitoring the ionospheric disturbances caused by shock waves of the solar wind by the radio occultation method on satellite-to-satellite paths is demonstrated.

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References

  1. Kucheryavenkov, A.I., Yakovlev, O.I., Kucheryavenkova, L.L., and Samoznaev, L.N., Regularities of Ionospheric Variations of Frequency and Amplitude of Radio Waves in Occultation Experiments on the Satellite-Satellite Route, Radiotekh. Elektr., 1998, vol. 43, no. 8, p. 945.

    Google Scholar 

  2. Hajj, G.A. and Romans, L.I., Ionospheric Electron Density Profiles Obtained with the GPS: Results from the GPS/MET Experiment, Radio Sci., 1998, vol. 33, no. 1, p. 175.

    Article  ADS  Google Scholar 

  3. Jakowski, N., Wehrenpfenning, A., Heise, S., et al., GPS Radio Occultation Measurements of the Ionosphere on CHAMP: Early Results, Geophys. Res. Lett., 2002, vol. 29, no. 10, p. 95.

    Article  Google Scholar 

  4. Vikert, I., Yakovlev, O.I., Pavelyev, A.G., et al., Ionospheric Fluctuations of Decimetric Radio Waves on Satellite-Satellite Routes, Radiotekh. Elektronika, 2004, vol. 49, no. 10, p. 1184.

    Google Scholar 

  5. Yakovlev, O.I., Vikert, I., Matyugov, S.S., and Anufriev, V.A., Fluctuations of Radio Waves in the Polar Ionosphere on Satellite-Satellite Routes at High Solar Activity, Radiofizika, 2006, vol. 49, no. 3, p. 185.

    Google Scholar 

  6. Liou, Y.A., Pavelyev, A.G., Wickert, J., et al., Application of GPS Radio Occultation Method for Observation of the Internal Waves in the Atmosphere, J. Geophys. Res., 2006, vol. 111, no. D06, p. 1.

    Google Scholar 

  7. Pavelyev, A.G., Wickert, I., Schmidt, T., et al., Influence of Solar Activity on Radio Occultation Signals of the CHAMP Satellite, Geomagn. Aeron., 2005, vol. 45, no. 1, p. 141.

    Google Scholar 

  8. Yakovlev, O.I., Anufriev, V.A., Vikert, I., and Matyugov, S.S., Capabilities of Radio Occultation Monitoring of the Lower Ionosphere on Satellite-Satellite Routes, Radiotekh. Elektr., 2008, vol. 53, no. 2, p. 169.

    Google Scholar 

  9. Matyugov, S.S., Yakovlev, O.I., and Anufriev, V.A., Sporadic Structures of the Equatorial Ionosphere according to Data of Radio Occultation on Satellite-Satellite Routes, Radiofizika, 2008, vol. 51, no. 4, p. 399.

    Google Scholar 

  10. Afraimovich, E.L and Perevalova, N.P., GRS-monitoring verkhnei atmosfery Zemli (GPS Monitoring of the Upper Atmosphere of the Earth), Irkutsk, 2006.

  11. Yakovlev, O.I., Kosmicheskaya radiofizika (Space Radio Physics), Moscow: RFFI, 1998.

    Google Scholar 

  12. Eselevich, M.V. and Eselevich, V.G., Sporadic Plasma Streams and Their Sources in the Period of Extraordinary Solar Activity from October 26 to November 6, 2003, Kosm. Issled., 2004, vol. 42, no. 6, p. 595.

    Google Scholar 

  13. Veselovsky, I.S., Panasyuk, M.I., Avdyushin, S.I., et al., Solar and Heliospheric Phenomena in October–November 2003: Causes and Effects, Kosm. Issled., 2004, vol. 42, no. 5, pp. 453–508. [Cosmic Research, pp. 435–488].

    Google Scholar 

  14. Panasyuk, M.I., Kuznetsov, S.N., Lazutin, L.L., et al., Magnetic Storms in October 2003, Kosm. Issled., 2004, vol. 42, no. 5, pp. 509–554. [Cosmic Research, pp. 489–434].

    Google Scholar 

  15. Wu, D.L., Ao, C.O., Hajj, G.A., et al., Sporadic E Morphology from GPS-CHAMP Radio Occultation, J. Geophys. Res., 2005, vol. 110, no. A01, p. 306.

    Google Scholar 

  16. Gershman, B.N., Ignat’ev, Yu.A., and Kamenetskaya, G.Kh., Mekhanizmy obrazovaniya ionosfernogo sporadicheskogo sloya Es na razlichnykh shirotakh (Mechanisms of Formation of the E s Ionospheric Sporadic Layer at Different Latitudes), Moscow: Nauka, 1976.

    Google Scholar 

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Original Russian Text © O.I. Yakovlev, S.S. Matyugov, V.A. Anufriev, G.P. Cherkunova, 2009, published in Kosmicheskie Issledovaniya, 2009, Vol. 47, No. 4, pp. 291–299.

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Yakovlev, O.I., Matyugov, S.S., Anufriev, V.A. et al. Sporadic structures and small-scale irregularity in the nighttime polar ionosphere in the period of high solar activity according to the data of radio occultation measurements on satellite-to-satellite paths. Cosmic Res 47, 259–267 (2009). https://doi.org/10.1134/S0010952509040017

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