Volume 32 Issue 6
Nov.  2012
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YANG Shenggao, FANG Hanxian, LI Gang, NIU Jun, WANG Kai. Impact of Geomagnetic Storms on L-band Ionospheric Scintillation Over Equatorial Region[J]. Chinese Journal of Space Science, 2012, 32(6): 812-817. doi: 10.11728/cjss2012.06.812
Citation: YANG Shenggao, FANG Hanxian, LI Gang, NIU Jun, WANG Kai. Impact of Geomagnetic Storms on L-band Ionospheric Scintillation Over Equatorial Region[J]. Chinese Journal of Space Science, 2012, 32(6): 812-817. doi: 10.11728/cjss2012.06.812

Impact of Geomagnetic Storms on L-band Ionospheric Scintillation Over Equatorial Region

doi: 10.11728/cjss2012.06.812
  • Received Date: 2011-06-27
  • Rev Recd Date: 2012-03-08
  • Publish Date: 2012-11-15
  • Using the observation data at Vanimo station, the amplitude scintillation intensity and the occurrence rate were analyzed during the two classic different strong magnetic storms. Mechanism of the magnetic storm influence on the scintillation was discussed preliminarily by Rayleigh-Taylor instability linear theory. The results show that the magnetic storm could either triggering or inhibiting the scintillation, which relates to the season and the local time of the different period of the magnetic storm. If the magnetic storm main phase occurs from midnight to dawn, the scintillation may be triggered by the eastern ward electrical field, and if the magnetic storm recovery phase takes place during the pre-midnight, it may be inhibited by the western ward electrical field. The electrical field variation during the magnetic storms is possibly the main factor that influence the scintillation, but it needs further study to prove.

     

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