Ionospheric current system during sudden stratospheric warming events

Y. Yamazaki, K. Yumoto, D. McNamara, Toshihiko Hirooka, T. Uozumi, K. Kitamura, S. Abe, A. Ikeda

Research output: Contribution to journalArticle

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Abstract

This paper describes ionospheric current systems associated with the counter-electrojet during sudden stratospheric warming (SSW) events in the northern winter months of 2001-2002 and 2002-2003. Magnetic data from 20 stations in the East Asian region, covering both the Northern Hemisphere and the Southern Hemisphere, are analyzed. Additional current systems that are superposed on the normal Sq current system and related to the counter-electrojet during the SSW events show a global semidiurnal current pattern, which shifts to later local times approximately by 0.8 hour/day. The results indicate that abnormally large lunar tidal winds played a main role to produce the additional current system and counter-electrojet during the SSW events.

Original languageEnglish
Article numberA03334
JournalJournal of Geophysical Research: Space Physics
Volume117
Issue number3
DOIs
Publication statusPublished - Jan 1 2012

Fingerprint

stratospheric warming
ionospheric currents
electrojets
Upper atmosphere
electrojet
counters
winter
Southern Hemisphere
Northern Hemisphere
coverings
stations
shift
sudden stratospheric warming

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Cite this

Yamazaki, Y., Yumoto, K., McNamara, D., Hirooka, T., Uozumi, T., Kitamura, K., ... Ikeda, A. (2012). Ionospheric current system during sudden stratospheric warming events. Journal of Geophysical Research: Space Physics, 117(3), [A03334]. https://doi.org/10.1029/2011JA017453

Ionospheric current system during sudden stratospheric warming events. / Yamazaki, Y.; Yumoto, K.; McNamara, D.; Hirooka, Toshihiko; Uozumi, T.; Kitamura, K.; Abe, S.; Ikeda, A.

In: Journal of Geophysical Research: Space Physics, Vol. 117, No. 3, A03334, 01.01.2012.

Research output: Contribution to journalArticle

Yamazaki, Y, Yumoto, K, McNamara, D, Hirooka, T, Uozumi, T, Kitamura, K, Abe, S & Ikeda, A 2012, 'Ionospheric current system during sudden stratospheric warming events', Journal of Geophysical Research: Space Physics, vol. 117, no. 3, A03334. https://doi.org/10.1029/2011JA017453
Yamazaki, Y. ; Yumoto, K. ; McNamara, D. ; Hirooka, Toshihiko ; Uozumi, T. ; Kitamura, K. ; Abe, S. ; Ikeda, A. / Ionospheric current system during sudden stratospheric warming events. In: Journal of Geophysical Research: Space Physics. 2012 ; Vol. 117, No. 3.
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