Relationship between plasma bubble and ionospheric current, equatorial electrojet, and equatorial counter electrojet

T. Akiyama, Akimasa Yoshikawa, A. Fujimoto, T. Uozumi

Research output: Contribution to journalConference article

Abstract

In recent years, it has been clarified from previous studies that plasma bubbles and equatorial electrojets (EEJs) are related. In general, EEJs are calculated by subtracting the magnetic field H component of the magnetic equator from that at low latitude. However, in this study, EE-index data at Langkawi (magnetic equator), which includes all local current systems, were used for the analysis during the period from January 1, 2011, to November 8, 2014. By using the EE-index, it was found that plasma bubbles tend to occur for larger EEJ strengths. This result differs from the previous studies. In addition, if an equatorial counter electrojet (CEJ) occurs, it is understood that plasma bubbles will rarely occur due to the westward current; however, we found that when the lunar tidal effect is strong, plasma bubbles can occur even in conjunction with CEJs. Finally, we want to find the relationship between plasma bubbles and ionospheric current to predict them.

Original languageEnglish
Article number012022
JournalJournal of Physics: Conference Series
Volume1152
Issue number1
DOIs
Publication statusPublished - Mar 4 2019
Event1st International Conference on Space Weather and Satellite Application 2018, ICeSSAT 2018 - Shah Alam, Selangor, Malaysia
Duration: Aug 7 2018Aug 8 2018

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ionospheric currents
plasma bubbles
equatorial electrojet
electrojets
counters
magnetic equator
tropical regions
magnetic fields

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Relationship between plasma bubble and ionospheric current, equatorial electrojet, and equatorial counter electrojet. / Akiyama, T.; Yoshikawa, Akimasa; Fujimoto, A.; Uozumi, T.

In: Journal of Physics: Conference Series, Vol. 1152, No. 1, 012022, 04.03.2019.

Research output: Contribution to journalConference article

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