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• 日球层物理和太阳系探测 • Previous Articles     Next Articles

Calculation Analysis of Ionospheric Irregularity Zonal Drift Velocity in Guangzhou Based on GPS Measurements

LIU Weifeng1, HUANG Jiang2, DENG Baichang1, XU Jie2, QUAN Hongjun1, HUANG Linfeng1, LIU Miao1   

  1. 1. Department of Physics, South China University of Technology, Guangzhou 510641;
    2. Guangzhou Meteorological Satellite Ground Station, Guangzhou 510640
  • Received:2010-12-14 Revised:2011-05-06 Online:2012-01-15 Published:2012-01-15

Abstract: Using data observed by two GPS ionospheric scintillation monitors located near each other at Guangzhou station, the amplitude scintillation was measured, and the zonal drift velocity of the ionospheric irregularities was studied by choosing three scintillation events, with methods of signal intensity power spectrum and cross-correlation technology. The results show that each of the scintillation registered in two receiver monitors occurs at the same time and induced by the same ionospheric irregularity. The zonal drift velocity is about 50m/s to 160m/s, on average about 120m/s from the two calculating methods, varies significantly at the beginning of the scintillation, decreased with time and eastward. The characteristics of the zonal drift velocity in Guangzhou are consistent with the observation at other stations in the low latitude region, which indicate that the two calculating methods are feasible and effective.

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