GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS |
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New reconstruction and forecasting algorithm for TEC data |
Wang Jun (王俊)a, Sheng Zheng (盛峥)b c, Jiang Yu (江宇)b, Shi Han-Qing (石汉青)b |
a National Key Laboratory on Electromagnetic Environmental Effects and Electro-optical Engineering, PLA University of Science and Technology, Nanjing 210007, China; b College of Meteorology and Oceangraphy, PLA University of Science and Technology, Nanjing 211101, China; c Jiangsu Key Laboratory of Meteorological Observation and Information Processing, Nanjing University of Information Science and Technology, Nanjing 210044, China |
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Abstract To reconstruct the missing data of the total electron content (TEC) observations, a new method is proposed, which is based on the empirical orthogonal functions (EOF) decomposition and the value of eigenvalue itself. It is a self-adaptive EOF decomposition without any prior information needed, and the error of reconstructed data can be estimated. The interval quartering algorithm and cross-validation algorithm are used to compute the optimal number of EOFs for reconstruction. The interval quartering algorithm can reduce the computation time. The application of the data interpolating empirical orthogonal functions (DINEOF) method to the real data have demonstrated that the method can reconstruct the TEC map with high accuracy, which can be employed on the real-time system in the future work.
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Received: 06 December 2013
Revised: 02 April 2014
Accepted manuscript online:
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PACS:
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94.20.Cf
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(Ionospheric modeling and forecasting)
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02.60.Ed
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(Interpolation; curve fitting)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 41105013, 41375028, and 61271106), the National Natural Science Foundation of Jiangsu Province, China (Grant No. BK2011122), and the Key Laboratory of Meteorological Observation and Information Processing Scientific Research Fund of Jiangsu Province, China (Grant No. KDXS1205). |
Corresponding Authors:
Sheng Zheng
E-mail: 19994035@sina.com
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Cite this article:
Wang Jun (王俊), Sheng Zheng (盛峥), Jiang Yu (江宇), Shi Han-Qing (石汉青) New reconstruction and forecasting algorithm for TEC data 2014 Chin. Phys. B 23 099401
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