Advertisement

Earth, Planets and Space

, Volume 61, Issue 10, pp 1185–1190 | Cite as

An attempt to infer information on planetary wave by analyzing sporadic E layers observations

  • Xiaomin Zuo
  • Weixing Wan
  • Guangxin Zhao
Open Access
Article

Abstract

In this paper we presented two typical global 6-day planetary wave oscillations occurring in sporadic E layers. By analyzing the foEs time series observed from several ionosonde stations on the basis of the methods suggested by Haldoupis and Pancheva (2002), we computed estimates for the PW propagation direction, zonal wave number and phase velocity. We obtained results that the 6-day PW, with zonal wave number about 1, propagates westward, which are in agreement with those reported from radar and satellite neutral wind MLT measurements. The results provide experimental evidence for a close relationship between PWs and midlatitude Es. In addition, the study proves the validity of Es observations measured routinely and rather reliably with a dense global network of digital ionosondes used as an alternative means of studying large-scale neutral atmospheric dynamics in the MLT region.

Key words

Sporadic E layers planetary waves MLT dynamics 

References

  1. Clark, R. R., M. D. Burrage, S. J. Franke, A. H. Manson, C. E. Meek, N. J. Mitchell, and H. G. Muller, Observations of 7-d planetary waves with MLT radars and the UARS-HRDI instrument, J. Atmos. Sol.-Terr. Phys., 64, 1217–1228, 2002.CrossRefGoogle Scholar
  2. Haldoupis, C. and D. Pancheva, Planetary waves and midlatitude sporadic E layers: Strong experimental evidence for a close relationship, J. Geophys. Res., 107(A6), 1078, doi:10.1029/2001JA000212, 2002.Google Scholar
  3. Haldoupis, C., D. Pancheva, and N. J. Mitchell, A study of tidal and planetary wave periodicities present in midlatitude sporadic E layers, J. Geophys. Res., 109, A02302, doi: 10.1029/2003JA010253, 2004.Google Scholar
  4. Hocking, W. K., B. Fuller, and B. Vandepeer, Real-time determination of meteor related parameters utilizing modern digital technology, J. Atmos. Sol.-Terr. Phys., 63, 155–169, 2001.CrossRefGoogle Scholar
  5. Mathews, J. D., Sporadic E: Current views and recent progress, J. Atmos. Sol. Terr. Phys., 60, 413–435, 1998.CrossRefGoogle Scholar
  6. Pancheva, D., C. Haldoupis, C. E. Meek, A. H. Manson, and N. J. Mitchell, Evidence of a role for modulated atmospheric tides in the dependence of sporadic E layers on planetary waves, J. Geophys. Res., 108(A5), 1176, doi:10.1029/2002JA009788, 2003.CrossRefGoogle Scholar
  7. Riggin, D. M., H.-L. Liu, R. S. Lieberman, R. G. Roble, J. M. Russell III, C. J. Mertens, M. G. Mlynczak, D. Pancheva, S. J. Franke, Y. Murayama, A. H. Manson, C. E. Meek, and R. A. Vincent, Observations of the 5-day wave in the mesosphere and lower thermosphere, J. Atmos. Sol.-Terr. Phys., 68, 323–339, 2006.CrossRefGoogle Scholar
  8. Shalimov, S. and C. Haldoupis, A model of mid-latitude E-region plasma convergence inside a planetary wave cyclonic vortex, Ann. Geophys., 20, 1193–1201, 2002.CrossRefGoogle Scholar
  9. Shalimov, S., C. Haldoupis, M. Voiculescu, and K. Schlegel, Midlatitude E region plasma accumulation driven by planetary wave horizontal wind shears, J. Geophys. Res., 104, 28207–28213, 1999.CrossRefGoogle Scholar
  10. Smith, E. K., Worldwide occurrence of sporadic E, U.S. Govt. Printing Office, Washington, D.C., 1957.Google Scholar
  11. Torrence, C. and G. Compo, A practical guide to wavelet analysis, Bull. Am. Meteorol. Soc., 79, 61–78, 1998.CrossRefGoogle Scholar
  12. Tsunoda, R. T., M. Yamamoto, K. Igarashi, K. Hocke, and S. Fukao, Quasiperiodic radar echoes from midlatitude sporadic E and role of the 5-day planetary wave, Geophys. Res. Lett., 25, 951–954, 1998.CrossRefGoogle Scholar
  13. Voiculescu, M., C. Haldoupis, and K. Schlegel, Evidence for planetary wave effects on midlatitude backscatter and sporadic E layer occurrence, Geophys. Res. Lett., 26, 1105–1108, 1999.CrossRefGoogle Scholar
  14. Voiculescu, M., C. Haldoupis, D. Pancheva, M. Ignat, K. Schlegel, and S. Shalimov, More evidence for a planetary wave link with midlatitude E region coherent backscatter and sporadic E layers, Ann. Geophys., 18, 1182–1196, 2000.CrossRefGoogle Scholar
  15. Whitehead, J. D., Recent work on mid-latitude and equatorial sporadic E, J. Atmos. Terr. Phys., 51, 401–424, 1989.CrossRefGoogle Scholar
  16. Wu, D. L., P. B. Hays, and W. R. Skinner, Observations of the 5-day wave in the mesosphere and lower thermosphere, Geophys. Res. Lett., 21, 2733–2736, 1994.CrossRefGoogle Scholar
  17. Zuo, X. and W. Wan, Planetary wave oscillations in sporadic E layer occurrence at Wuhan, Earth Planets Space, 60(6), 647–652, 2008.CrossRefGoogle Scholar

Copyright information

© The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS); The Seismological Society of Japan; The Volcanological Society of Japan; The Geodetic Society of Japan; The Japanese Society for Planetary Sciences; TERRAPUB. 2009

Authors and Affiliations

  1. 1.School of Mathematics and PhysicsChina University of GeosciencesWuhanChina
  2. 2.Institute of Geology and GeophysicsChinese Academy of SciencesBeijingChina
  3. 3.School of SciencesWuhan University of Science and EngineeringWuhanChina

Personalised recommendations