Volume 33 Issue 3
May  2013
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Article Navigation >  Chinese Journal of Space Science  > 2013  >  33(3): 277-285
Cai Chaojun, Huang Jiang, Deng Baichang, Xu Jie, Huang Linfeng, Quan Hongjun. Applicability analysis of IRI-2007 in predicting TEC over Guangzhou region[J]. Chinese Journal of Space Science, 2013, 33(3): 277-285. doi: 10.11728/cjss2013.03.277
Citation: Cai Chaojun, Huang Jiang, Deng Baichang, Xu Jie, Huang Linfeng, Quan Hongjun. Applicability analysis of IRI-2007 in predicting TEC over Guangzhou region[J]. Chinese Journal of Space Science, 2013, 33(3): 277-285. doi: 10.11728/cjss2013.03.277
shu

Applicability analysis of IRI-2007 in predicting TEC over Guangzhou region

doi: 10.11728/cjss2013.03.277 cstr: 32142.14.cjss2013.03.277
  • 1.

    South China University of Technology, Guangzhou 510640

  • 2.

    Guangzhou Meteorological Satellite Ground Stations, Guangzhou 510640

  • Received Date: 2012-04-24
  • Rev Recd Date: 2012-10-16
  • Publish Date: 2013-05-15
    Abstract
  • By using GPS-TEC data observed in 2008 and IRI-TEC data derived from IRI-2007 model, the variations of Total Electron Content (TEC) are studied over Guangzhou (23.2°N, 113.3°E), which is in the equatorial anomaly region. Results show that the diurnal variation of GPS-TEC shows a peak value at about 16:00LT, while IRI-TEC is at about 15:00LT. The seasonal variation of TEC appears a winter anomaly and semiannual pattern, maxima in equinoxes and minima in summer and winter. A good agreement is found between IRI-TEC and GPS-TEC in daytime, but a bit large deviation in nighttime, and the IRI-TEC is in more agreement with the GPS-TEC when choosing NeQuick, B0 Table and URSI parameters. However, GPS-TEC shows apparent response to magnetic storm while IRI-TEC does not show any response to it. Through comparison, the applicability of IRI-2007 model in predicting TEC is analyzed over Guangzhou region, and the reasonable input options of parameters are also discussed.

     

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