Daytime Periodic Wave‐like Structures in the Ionosphere Observed at Low Latitudes over the Asian‐Australian Sector Using Total Electron Content from Beidou Geostationary Satellites

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  • Fuqing Huang
    CAS Key Laboratory of Geospace Environment, School of Earth and Space Sciences University of Science and Technology of China Hefei China
  • Yuichi Otsuka
    Institute for Earth‐Space Environmental Research Nagoya University Nagoya Japan
  • Jiuhou Lei
    CAS Key Laboratory of Geospace Environment, School of Earth and Space Sciences University of Science and Technology of China Hefei China
  • Xiaoli Luan
    CAS Key Laboratory of Geospace Environment, School of Earth and Space Sciences University of Science and Technology of China Hefei China
  • Xiankang Dou
    CAS Key Laboratory of Geospace Environment, School of Earth and Space Sciences University of Science and Technology of China Hefei China
  • Guozhu Li
    Key Laboratory of Earth and Planetary Physics Institute of Geology and Geophysics, Chinese Academy of Sciences Beijing China

書誌事項

公開日
2019-03
資源種別
journal article
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1029/2018ja026443
公開者
American Geophysical Union (AGU)

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説明

<jats:title>Abstract</jats:title><jats:p>Daytime periodic wave‐like structures are statistically analyzed for the first time in the low‐latitude ionosphere over the Asian‐Australian sector using total electron content from Beidou geostationary satellites during 2016–2017. These structures have periods of about 18–28 min, which frequently occur during 11:00–17:00 local time in the winter at latitudes ranging between 17 and 25°N (10–18°N magnetic latitude [MLAT]) in the Northern Hemisphere, where they have a maximum occurrence rate of 80% at ~21°N (14°N MLAT). In the Southern Hemisphere, daytime periodic wave‐like structures are also observed during 11:00–15:00 local time in the winter within latitudes ranging between 6.0 and 11.1°S (15.4–21.6°S MLAT), although the peak occurrence rate is only approximately 40%. Compared with stratospheric gravity waves (GWs), the seasonal and latitudinal variations of daytime periodic wave‐like structures are generally consistent with those of stratospheric GWs. This gives a possible argument that daytime periodic wave‐like structures in the low‐latitude ionosphere could be generated in the low‐latitude ionosphere and triggered by GWs from the lower atmosphere.</jats:p>

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