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机译:长期趋势,上部电离层电子1995 - 2017年期间密度源自DMSP数据
High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO, USA,;
Department of Earth and Planetary Science, Kyushu University, Fukuoka, Japan;
Haystack Observatory, Massachusetts Institute of Technology, Westford, MA, USA,Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China,;
ionospheric electron density; secular trend; Electron densityDMSP satellitesIon temperaturetopside;