徐鹏,祝芙英. 基于陆态网和IGS站联合数据的中国区域电离层建模方法[J]. 电波科学学报,xxxx,x(x): x-xx. DOI: 10.12265/j.cjors.2023007
      引用本文: 徐鹏,祝芙英. 基于陆态网和IGS站联合数据的中国区域电离层建模方法[J]. 电波科学学报,xxxx,x(x): x-xx. DOI: 10.12265/j.cjors.2023007
      XU P, ZHU F Y. Modeling of the regional ionosphere in China based on the combined CMONOC and IGS GPS data[J]. Chinese journal of radio science,xxxx,x(x): x-xx. (in Chinese). DOI: 10.12265/j.cjors.2023007
      Citation: XU P, ZHU F Y. Modeling of the regional ionosphere in China based on the combined CMONOC and IGS GPS data[J]. Chinese journal of radio science,xxxx,x(x): x-xx. (in Chinese). DOI: 10.12265/j.cjors.2023007

      基于陆态网和IGS站联合数据的中国区域电离层建模方法

      Modeling of the regional ionosphere in China based on the combined CMONOC and IGS GPS data

      • 摘要: 为了提高中国区域电离层垂直总电子含量(vertical total electron content, VTEC)建模的精度,减少中国海洋区域及周边区域电离层建模误差,利用中国大陆构造环境监测网络(CMONOC)和IGS GPS数据联合进行电离层建模;并对中国区域电离层建模策略进行定量考察,对比给出各类建模策略对中国区域电离层建模精度的影响,给出更符合中国区域的电离层建模方式。 将建模后的结果同IGS中心的综合格网产品和中国地震局地震研究所利用单陆态网数据的建模结果进行比对,结果显示:基于该方法对中国区域电离层建模的结果精度更高,与IGS数据中心发布的电离层格网产品相比误差平均值为1.2109 TECU,与卫星实测电离层TEC的内符合精度为1.050 TECU。 说明利用联合数据建模能一定程度上提高中国区域建模的精度,同时减少区域建模边缘的误差。

         

        Abstract: In order to improve the accuracy of ionospheric vertical total electron content modeling in China and reduce the ionospheric modeling errors in and around the Chinese ocean, this paper uses the Crustal Movement Observation Network of China (CMONOC) and International GNSS Service(IGS) GPS data for ionospheric modeling. At the same time, quantitative investigation is conducted on the ionospheric modeling strategies in China. The influence of various modeling strategies on the ionospheric modeling accuracy in China region is compared, and a more suitable ionospheric modeling method is presented. The modeling results are compared with the IGS integrated grid products and the modeling results of the Institute of Seismology, China Earthquake Administration using the data of mono-continental network. The results show that compared with the ionospheric grid products published by IGS data centers, the mean error is 1.2109 TECu, and the inner agreement accuracy is 1.050 TECu with the ionospheric TEC measured by satellite. It shows that joint data modeling can improve the accuracy of regional modeling in China to a certain extent, and reduce the error of regional modeling edge.

         

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