Volume 29 Issue 4
Jul.  2009
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Chen Chun, Wu Zhensen, Sun Shuji, Ding Zonghua, Ban Panpan, Zhao Zhenwei. Short-term Forecasting of the Ionosphere f0F2 with F10.7[J]. Journal of Space Science, 2009, 29(4): 383-388. doi: 10.11728/cjss2009.04.383
Citation: Chen Chun, Wu Zhensen, Sun Shuji, Ding Zonghua, Ban Panpan, Zhao Zhenwei. Short-term Forecasting of the Ionosphere f0F2 with F10.7[J]. Journal of Space Science, 2009, 29(4): 383-388. doi: 10.11728/cjss2009.04.383

Short-term Forecasting of the Ionosphere f0F2 with F10.7

doi: 10.11728/cjss2009.04.383
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2009-07-15
  • The critical frequency of the ionospheric F layer, f0F2, is of importance to shortwave propagation and ground-space communications. By using regression analysis of the f0F2 observational data and solar radio flux F10.7, a short-term predicting technique of the ionosphere f0F2 is introduced. The solar activity index fc, defined as the moving average of F10.7, is used as the input, and the output is the ionospheric critical frequency f0F2 values three days in advance. Historical data from eight ionospheric stations around China is used to build the method and verify the performance respectively. The results are compared by giving their root-mean-square errors according to different solar activity, season and local time. The results show that the predicting errors at each season and local time are acceptable, which indicate that the method can forecast the f0F2 values effectively. The predicting errors at low latitude are higher than those at middle latitude, which conform the complexity variations of low latitude ionosphere. In addition, this method can also be applied to the short-term forecasting of other ionospheric parameters.

     

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