Intriguing aspects of low latitude night-time F region irregularities over East and South-East Asia

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

Generally, the occurrence of F region irregularities associated with Equatorial Plasma Bubbles is considered difficult to predict due to its day-to-day variability. Recent investigation shows that the dominant period of variability of EPB can be >; 25 days (quasi 27 day), presumably associated with solar rotation period. VHF scintillation recorded from Pingtung, Taiwan in 2015 indicated the coexistence of planetary scale variability (4-8 days), 10-15 days variability and quasi 27 day variability. Lomb-Scargle power spectrum of S4 time series indicated that the larger period variability (quasi 27 days) is much more dominant than the other scales (which includes day-to-day variability). Interestingly, the dominant period of S4 variability corresponded exactly with the dominant period of high-latitude geomagnetic variability. Continuous operation of Equatorial Atmosphere Radar (EAR) in 2012 also indicated similar observation. Dominant period of variability of EPB in EAR observations corresponded with the high-latitude geomagnetic variability. These observations reveal that EPB are controlled predominantly by geomagnetic activity through large period variability (quasi- 27 days).

原文???core.languages.en_GB???
主出版物標題2020 33rd General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2020
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9789463968003
DOIs
出版狀態已出版 - 8月 2020
事件33rd General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2020 - Rome, Italy
持續時間: 29 8月 20205 9月 2020

出版系列

名字2020 33rd General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2020

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???event.eventtypes.event.conference???33rd General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2020
國家/地區Italy
城市Rome
期間29/08/205/09/20

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