Volume 6 Issue 3
Aug.  1986
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Tan Zi-xun, Cheng Xiao-ping. The Enhancement of Ionospheric Es in the Far East and Its Related Factors[J]. Journal of Space Science, 1986, 6(3): 203-210. doi: 10.11728/cjss1986.03.203
Citation: Tan Zi-xun, Cheng Xiao-ping. The Enhancement of Ionospheric Es in the Far East and Its Related Factors[J]. Journal of Space Science, 1986, 6(3): 203-210. doi: 10.11728/cjss1986.03.203

The Enhancement of Ionospheric Es in the Far East and Its Related Factors

doi: 10.11728/cjss1986.03.203
  • Received Date: 1985-03-21
  • Rev Recd Date: 1900-01-01
  • Publish Date: 1986-08-24
  • The relationship between the enhancement events of ionospheric Es in the Far Bast region of the world and geomagnetic activity is examined. The approach adopted in this paper is to use local geomagnetic index K in the superposed epoch analysis and special emphasis is put on the night time Es echoes with large amplitudes of variations, so that some remarkable results may be expected. Among 1213 enhanced Es events analysed in this paper, about 70% is accompanied by the conditions of L>4 or K>2 within 11 hours before the event. The remaining enhanced Es, either occurred on geomagnetic quiet days and seems to be associated with some gradual commencement storms occurring in neigboring Hyderabad, India, or occurred before certain large geomagnetic storms.

     

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