Deep Ionospheric Hole Created by Sudden Stratospheric Warming in the Nighttime Ionosphere

Larisa Petrovna Goncharenko, A. J. Coster, S. R. Zhang, P. J. Erickson, L. Benkevitch, N. Aponte, V. L. Harvey, B. W. Reinisch, I. Galkin, M. Spraggs, A. Hernández-Espiet

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

Multiple observational studies have demonstrated large ionospheric variations during the daytime associated with sudden stratospheric warming (SSW) events, but only limited evidence of ionospheric disturbances during the nighttime has been reported up to now. We focus on the American longitudinal sector with its extensive observational network of Global Navigation Satellite System receivers, four Digisondes located at low and middle latitudes, and the Arecibo and Millstone Hill incoherent scatter radars. The study focuses on a major SSW event of January 2013 to investigate large-scale disturbances in the nighttime ionosphere. We report a deep decrease in total electron content that reaches a factor of 2–5 as compared to the background level and is observed between local midnight and local sunrise (6–12 UT). This decrease is observed for several consecutive days in the range of latitudes from ~55°S to ~45°N. It is accompanied by a strong downward plasma motion and a significant decrease in ion temperature, as observed by both Arecibo and Millstone Hill radars. These results demonstrate that SSW events cause changes in the nighttime ionosphere that are even larger than in the daytime ionosphere. We discuss variations in electric field and F-region dynamics as possible drivers of this behavior and suggest that thermospheric winds play a much larger role than previously thought.

元の言語英語
ページ(範囲)7621-7633
ページ数13
ジャーナルJournal of Geophysical Research: Space Physics
123
発行部数9
DOI
出版物ステータス出版済み - 9 1 2018

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stratospheric warming
Upper atmosphere
Ionosphere
ionospherics
ionospheres
ionosphere
daytime
observational studies
electric field
F region
ionospheric disturbances
satellite navigation systems
disturbance
sunrise
GNSS
electrons
ions
ion temperature
background level
tropical regions

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
  • Space and Planetary Science
  • Earth and Planetary Sciences (miscellaneous)
  • Palaeontology

これを引用

Goncharenko, L. P., Coster, A. J., Zhang, S. R., Erickson, P. J., Benkevitch, L., Aponte, N., ... Hernández-Espiet, A. (2018). Deep Ionospheric Hole Created by Sudden Stratospheric Warming in the Nighttime Ionosphere. Journal of Geophysical Research: Space Physics, 123(9), 7621-7633. https://doi.org/10.1029/2018JA025541

Deep Ionospheric Hole Created by Sudden Stratospheric Warming in the Nighttime Ionosphere. / Goncharenko, Larisa Petrovna; Coster, A. J.; Zhang, S. R.; Erickson, P. J.; Benkevitch, L.; Aponte, N.; Harvey, V. L.; Reinisch, B. W.; Galkin, I.; Spraggs, M.; Hernández-Espiet, A.

:: Journal of Geophysical Research: Space Physics, 巻 123, 番号 9, 01.09.2018, p. 7621-7633.

研究成果: ジャーナルへの寄稿記事

Goncharenko, LP, Coster, AJ, Zhang, SR, Erickson, PJ, Benkevitch, L, Aponte, N, Harvey, VL, Reinisch, BW, Galkin, I, Spraggs, M & Hernández-Espiet, A 2018, 'Deep Ionospheric Hole Created by Sudden Stratospheric Warming in the Nighttime Ionosphere', Journal of Geophysical Research: Space Physics, 巻. 123, 番号 9, pp. 7621-7633. https://doi.org/10.1029/2018JA025541
Goncharenko LP, Coster AJ, Zhang SR, Erickson PJ, Benkevitch L, Aponte N その他. Deep Ionospheric Hole Created by Sudden Stratospheric Warming in the Nighttime Ionosphere. Journal of Geophysical Research: Space Physics. 2018 9 1;123(9):7621-7633. https://doi.org/10.1029/2018JA025541
Goncharenko, Larisa Petrovna ; Coster, A. J. ; Zhang, S. R. ; Erickson, P. J. ; Benkevitch, L. ; Aponte, N. ; Harvey, V. L. ; Reinisch, B. W. ; Galkin, I. ; Spraggs, M. ; Hernández-Espiet, A. / Deep Ionospheric Hole Created by Sudden Stratospheric Warming in the Nighttime Ionosphere. :: Journal of Geophysical Research: Space Physics. 2018 ; 巻 123, 番号 9. pp. 7621-7633.
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