Automatic scaling of F layer from ionograms

Authors

  • Ziwei Chen,

    Corresponding author
    1. Key Laboratory of High Power Microwave and Electromagnetic Radiation, Institute of Electronics, Chinese Academy of Science, Beijing, China
    2. Haystack Observatory, Massachusetts Institute of Technology, Westford, Massachusetts, USA
    • National Satellite Meteorological Center, China Meteorological Administration, Beijing, China
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  • Shun Wang,

    1. Key Laboratory of High Power Microwave and Electromagnetic Radiation, Institute of Electronics, Chinese Academy of Science, Beijing, China
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  • Shunrong Zhang,

    1. Haystack Observatory, Massachusetts Institute of Technology, Westford, Massachusetts, USA
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  • Guangyou Fang,

    1. Key Laboratory of High Power Microwave and Electromagnetic Radiation, Institute of Electronics, Chinese Academy of Science, Beijing, China
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  • Jinsong Wang

    1. National Satellite Meteorological Center, China Meteorological Administration, Beijing, China
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Corresponding author: Z. Chen, Haystack Observatory, Massachusetts Institute of Technology, Westford, MA 01886, USA. (ziwei@haystack.mit.edu)

Abstract

[1] The correct automatic scaling of ionograms is one of the fundamental first steps to obtain ionospheric information. In this paper, new algorithms are proposed to scale F layer traces and separate ordinary ray and extraordinary ray traces from ionograms automatically. The method is mainly based on mathematical morphology, graph theory, and the echo characteristics of the ionosphere. Digital ionogram data from the Chinese Academy of Sciences Digital Ionosonde, installed at Dulan (36°17′N, 98°5′E), were used to demonstrate the data processing procedures.

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