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The use of the international GPS network as the global detector (GLOBDET) simultaneously observing sudden ionospheric disturbances

Abstract

We developed a new technology for global detection of ionospheric disturbances, on the basis of phase measurements of the total electron content (TEC) along the line-of-sight (LOS) between the receiver on the ground and transmitters on the GPS satellites using an international GPS networks. Temporal dependencies of TEC with the time resolution of 30 s are obtained for a set of spaced receivers of the GPS network simultaneously for the entire set of visible satellites. These series are subjected to filtering in the selected range of oscillation periods using known algorithms for spatio-temporal analysis of signals. An analysis is made of the possibilities of using the GLOBDET when detecting the ionospheric response of solar flares. In this case it is best to make the coherent summation of the filtered series of TEC. Because of a statistical independence of the background fluctuations, the signal/noise ratio, when the flare effect is detected, is increased due to a coherent processing by at least the times, where N is the number of LOS.

References

  1. Aarons, J., M. Mendillo, and R. Yantosca, GPS phase fluctuations in the equatorial region during sunspot minimum, Radio Sci., 32, 1535–1550, 1997.

  2. Afraimovich, E. L., K. S. Palamartchouk, and N. P. Perevalova, GPS radio interferometry of traveling ionospheric disturbances, J. Atmos. Solar-Terr. Phys., 60, 1205–1223, 1998.

  3. Collin, R. E., Antennas and Radiowave Propagation, McGraw-Hill, New York, 1985.

  4. Davies, K., Ionospheric Radio Waves, Blaisdell Publishing Company, A Division of Ginn and Company, Waltham, Massachusetts-Totonto-London, 1969.

  5. Gurtner, W., RINEX: The Receiver Independent Exchange Format Version 2, http://igscb.jpl.nasa.gov/igscb/data/format/rinex2.txt, 1993.

  6. Ho, C. M., B. A. Iijima, X. P. Lindqwister, A. J. Mannucci, L. Sparks, M. J. Reyes, and B. D. Wilson, Ionospheric total electron content perturbations monitored by the GPS global network during two northern hemisphere winter storms, J. Geophys. Res., 103, 26409–26420, 1998.

  7. Klobuchar, J. A., Real-time ionospheric science: The new reality, Radio Sci., 32, 1943–1952, 1997.

  8. Klobuchar, J. A., Ionospheric time-delay algorithm for single-frequency GPS users, IEEE Transactions on Aerospace and Electronics System, AES23(3), 325–331, 1986.

  9. Liu, J. Y., C. S. Chiu, and C. H. Lin, The solar flare radiation responsible for sudden frequency deviation and geomagnetic fluctuation, J. Geophys. Res., 101, 10855–10862, 1996.

  10. Mannucci, A. J., C. M. Ho, U. J. Lindqwister, T. F. Runge, B. D. Wilson, and D. N. Yuan, A global mapping technique for GPS-drived ionospheric TEC measurements, Radio Sci., 33, 565–575, 1998.

  11. Mendillo, M., J. A. Klobuchar, R. B. Fritz, A. V. da Rosa, L. Kersley, K. C. Yeh, B. J. Flaherty, S. Rangaswamy, P. E. Schmid, J. V. Evans, J. P. Schodel, D. A. Matsoukas, J. R. Koster, A. R. Webster, and P. Chin, Behavior of the ionospheric F region during the great solar flare of August 7, 1972, J. Geophys. Res., 79, 665–672, 1974.

  12. Mitra, A. P., Ionospheric Effects of Solar Flares, 294 pp., New Delhi-12, India, 1974.

  13. Pi, X., A. J. Mannucci, U. J. Lindgwister, and C. M. Ho, Monitoring of global ionospheric irregularities using the worldwide GPS network, Geophys. Res. Lett., 24, 2283–2286, 1997.

  14. Saito, A., S. Fukao, and S. Miyazaki, High resolution mapping of TEC perturbations with the GSI GPS network over Japan, Geophys. Res. Lett., 25, 3079–3082, 1998.

  15. Thome, G. D. and L. S. Wagner, Electron density enhancements in the E and F regions of the ionosphere during solar flares, J. Geophys. Res., 76, 6883–6895, 1971.

  16. Vanderveen, K., L. E. Orwig, and E. Tandberg-Hanssen, Temporal correlations between impulsive ultraviolet and hard X-ray busts in solar flares observed with high time resolution, Astrophys. J., 330, 480–492, 1988.

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Correspondence to Edward L. Afraimovich.

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Afraimovich, E.L., Kosogorov, E.A. & Leonovich, L.A. The use of the international GPS network as the global detector (GLOBDET) simultaneously observing sudden ionospheric disturbances. Earth Planet Sp 52, 1077–1082 (2000). https://doi.org/10.1186/BF03352334

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Keywords

  • Total Electron Content
  • Ionospheric Disturbance
  • Ionospheric Response
  • Phase Antenna Array
  • Total Electron Content Variation