Comparison of TEC Prediction Methods for High Latitudes with GIM Maps

G. Glebova, O. Maltseva
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Abstract

Some publications have shown that, despite the limitation of the orbits of the navigation satellites used to determine the total electron content TEC, in terms of latitude, the usage of TEC in high latitudes has great prospects. In this sense, it is of interest to test models of the ionosphere, which provide a long-term prediction, and short-term forecast methods, based on the history of TEC measurements by one receiver. In this work, according to the reference mid-latitude station Juliusruh and high-latitude station Longyearbyen for 2015, the models IRI-Plas and NeQuick are tested using global maps of JPL, UPC, and a version of the short-term prediction method a day ahead is proposed. It is shown that the IRI-Plas model provides a better fit with the experimental data than the NeQuick model. The possibility of developing a short-term prediction method that at high latitudes gives results not worse than the forecast for middle latitudes is confirmed.
高纬度地区TEC预报方法与GIM地图的比较
一些出版物表明,尽管用于确定总电子含量TEC的导航卫星的轨道有限制,但就纬度而言,在高纬度地区使用TEC具有很大的前景。从这个意义上说,测试电离层模型是很有意义的,它提供了长期预测和短期预测方法,基于一个接收器的TEC测量历史。本文以2015年中纬度观测站Juliusruh和高纬度观测站Longyearbyen为参考,利用JPL、UPC的全球地图对iris - plas和NeQuick模型进行了测试,并提出了一种提前一天的短期预测方法。结果表明,与NeQuick模型相比,iris - plas模型能更好地拟合实验数据。证实了发展一种短期预报方法的可能性,这种方法在高纬度地区的预报结果不低于中纬度地区的预报结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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