Ionospheric foF2 Reconstruction and its Application to the Short-Term Forecasting in China Region
Ionospheric foF2 Reconstruction and its Application to the Short-Term Forecasting in China Region
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DOI：
10.1002/cjg2.1212
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发表时间：
2008-03
期刊：
影响因子：
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通讯作者：
Rui-yuan Liu;Guo‐Hua Liu;Jian Wu;Beichen Zhang;Ji‐ying Huang;Hongqiao Hu;Zhonghua Xu
中科院分区：
文献类型：
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作者：
Rui-yuan Liu;Guo‐Hua Liu;Jian Wu;Beichen Zhang;Ji‐ying Huang;Hongqiao Hu;Zhonghua Xu
提出了一种基于CRI的Kriging方法，用于中国地区电离层foF2的重建。在该方法中，采用区域相关变量作为foF2的估计值和CRI模型值之间的相对差。引入电离层距离，利用克里格法可以实现区域电离层重建。与直接foF2重建方法相比，基于CRI的Kriging方法可以提高区域电离层重建的精度和稳定性。根据中国电离层探测网的系统测量数据，对不同太阳活动年、月、时的电离层重建进行了计算机模拟，并对中国地区电离层重建精度进行了估计。该方法与单站自相关法相结合，可用于中国地区foF2的短期预报。
The CRI based Kriging method has been proposed for reconstruction of the ionospheric foF2 in China region. In this method the regional-dependent variable is adopted as the relative difference between the estimated and the CRI modeled values of foF2. Introducing the ionospheric distance the regional ionospheric reconstruction can be realized by using the Kriging method. The CRI based Kriging method would improve the accuracy and stability in the regional ionospheric reconstruction as compared with the straight foF2 reconstruction. Based on the systematic measurements of the Chinese ionosounde network computer simulations of the ionospheric reconstruction have been done for different solar activity years, months and hours, which give the estimates of the reconstruction accuracy in China region. This method, combined with the autocorrelation method for single station, will practise the short-term forecasting of foF2 in China region.