Skip to main content

Advertisement

First GPS-TEC evidence for the wave structure excited by the solar terminator

Article metrics

  • 382 Accesses

  • 36 Citations

Abstract

Using TEC measurements from the global network of GPS receivers, we have obtained the first evidence for the wave structure excited by the solar terminator (ST), moving over the USA, Europe, and Japan. Two main types of the observed TEC disturbance were found: large-scale (LS) 60-min variations with an amplitude of about 0.5–1 TECU and medium-scale (MS) 15-min variations with an amplitude of about 0.05–0.1 TECU. The first type of disturbances was predicted in theoretical investigations and registered earlier using different methods of ionosphere radio sounding. The second type of the observed TEC disturbance is wave packets (WPs) generated when the time derivative of TEC is at its maximum. These WPs have duration of about 1–2 h and a time shift of about 1.5–2.5 h after the ST appearance at an altitude of 100 km. That ST-generated wave packets have been found for the first time. LS TEC disturbances and MS WPs are space-fixed along the ST line over a distance exceeding 1600 km.

References

  1. Afraimovich, E. L. and N. P. Perevalova, GPS-monitoring of the Earth’s upper atmosphere, 480 pp, Institute of solar-terrestrial physics, Irkutsk, 2006.

  2. Afraimovich, E. L., N. P. Perevalova, and S. V. Voyeikov, Traveling wave packets of total electron content disturbances as deduced from global GPS network data, J. Atm. Solar-Terr. Phys., 65(11–13), 1245–1262, 2003.

  3. Afraimovich, E. L., S. V. Voeykov, N. P. Perevalova, and K. G. Ratovsky, Large-scale traveling ionospheric disturbances of auroral origin according to the data of the GPS network and ionosondes, Adv. Space Res., doi:10.1016/j.asr.2007.11.023, 2008.

  4. Antonova, V. P., K. E. Dungenbaeva, A. V. Zalizovskii, A. S. Inchin, S. V. Kryukov, V. M. Somsikov, and Yu. M. Yampolskii, Difference between the Spectra of Acoustic GravityWaves in Daytime and Nighttime Hours due to Nonequilibrium Effects in the Atmosphere, Geomagnetism Aeronomy, 46(1), 101–109, 2006.

  5. Beer, T., On atmospheric wave generation by the terminator, Planet. Space Sci., 26, 185–189, 1978.

  6. Beley, V. S., V. G. Galushko, and Y. M. Yampolski, Traveling ionospheric disturbances diagnostic using HF signal trajectory parameter variations, Radio Sci., 30(6), 1735–1752, 1995.

  7. Bezotosnyi, A. A., V. I. Drobzhev, V. M. Somsikov, A. G. Askarov, and V. A. Belyaev, On peculiarities of variations in the virtual heights of reflection during transient hours of the day, Geomagnetism Aeronomy, 34(3), 401–403, 1994.

  8. Bezrodny, Y. G. and Y. M. Yampolski, On the origin of the spatial phase deference of the VLF at sunrise and sunset, Radiophys. Quantum Electronics, 19(9), 1270–1274, 1976.

  9. Cot, C. and H. Teitelbaum, Generated of the gravity waves by inhomogeneous heating of the atmosphere, J. Atmos. Terr. Phys., 42(9/10), 877–883, 1980.

  10. Drobzhev, V. I., D. E. Zachateisky, P. E. Kozina et al., Mid-latitude shortperiod disturbances in the ionosphere during the solar terminator passage, Geomagnetism Aeronomy, 32(2), 181–183, 1992.

  11. Dungenbaeva, K. E. and B. Ganguly, Radiation changes in atmospheric wave dynamics and spectra, Math. Comput. Simulation, 67, 411–417, 2004.

  12. Francis, S. H., A theory of medium-scale traveling ionospheric disturbances, J. Geophys. Res., 79, 5245–5259, 1974.

  13. Galushko, V. G. and Y. M. Yampolski, Experimental investigations of the HF signals scattered by moving solar terminator, Radiophys. Quantum Electronics, 26(4), 499–502, 1983.

  14. Galushko, G., V. V. Paznukhov, Y. M. Yampolski, and J. C. Foster, Incoherent scatter radar observations of AGW/TID events generated by the moving solar terminator, Ann. Geophys., 16, 821–827, 1998.

  15. Galushko, V. G., V. S. Beley, A. V. Koloskov, Y. M. Yampolski, B. Reinisch, and V. V. Paznukhov, Frequency-and-Angular HF Sounding and VHF ISR Diagnostics of TIDs, Radio Sci., 38(6), 1102–1110, 2003.

  16. Hines, C. O., Internal atmospheric gravity waves at ionospheric heights, Canadian J. Phys., 38(8), 1441–1481, 1960.

  17. Hocke, K. and K. Schlegel, A review of atmospheric gravity waves and traveling ionospheric disturbances: 1982–1995, Ann. Geophys., 14, 917–940, 1996.

  18. Hocke, K. and K. Igarashi, Electron density in the F region derived from GPS/MET radio occultation data and comparison with IRI, Earth Planets Space, 54, 947–954, 2002.

  19. Hofmann-Wellenhof, B., H. Lichtenegger, and J. Collins, Global Positioning System: theory and practice, 327 pp, Springer-Verlag Wien., New York, 1992.

  20. Klobuchar, J. A., Ionospheric time-delay algorithm for single-frequency GPS users, IEEE Trans. Aerospace Electronics System, 23(3), 325–331, 1986.

  21. Mishin, E. V., A. E. Epishova, L. M. Ishkova, E. M. Kovalevskaia, E. F. Kozlov, L. E. Kolokolov, L. N. Rubcov, N. I. Samorokin, L. N. Sidorova, V. M. Somsikov, V. A. Telegin, and L. A. Ydovich, Disturbances of F-region electron density following solar terminator during the WITS period of 16–20 March, J. Atmos. Terr. Phys., 33(4/5), 643–648, 1991.

  22. Popov, A. V. and Y. M. Yampolski, VLF variations during sunrise period, Radiophys. Quantum Electronics, 24(6), 794–798, 1981.

  23. Sobral, J. H. A., G. L. Borba, M. A. Abdu, I. S. Batista, H. Sawant, C. J. Zamlutti, H. Takahashi, and Y. Nakamura, Post-sunset wintertime 630.0 nm airglow perturbations associated with gravity waves at low latitudes in the South American sector, J. Atmos. Terr. Phys., 59, 1611–1623, 1997.

  24. Somsikov, V. M., Solar terminator and dynamics of the atmosphere, 192 pp, Nauka, Alma-Ata, 1983.

  25. Somsikov, V. M., A spherical model of wave generation in atmosphere by solar terminator, J. Atmos. Terr. Phys., 49(5), 433–438, 1987.

  26. Somsikov, V. M., On generation of the atmosphere turbulence by the solar terminator, Geomagnetism Aeronomy, 32(3), 55–59, 1992.

  27. Somsikov, V. M. and B. Ganguly, On the mechanism of formation of atmospheric inhomogeneties in the solar terminator region, J. Atmos. Terr. Phys., 57, 75–83, 1995.

Download references

Author information

Correspondence to E. L. Afraimovich.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Afraimovich, E.L. First GPS-TEC evidence for the wave structure excited by the solar terminator. Earth Planet Sp 60, 895–900 (2008) doi:10.1186/BF03352843

Download citation

Key words

  • Solar terminator
  • total electron content
  • wave packets
  • GPS