Ionospheric F Layer Scintillation Weakening as Observed by COSMIC/FORMOSAT-3 During the Major Sudden Stratospheric Warming in January 2013

Tao Yu, Hailun Ye, Huixin Liu, Chunliang Xia, Xiaomin Zuo, Xiangxiang Yan, Na Yang, Yangyi Sun, Biqiang Zhao

Research output: Contribution to journalArticlepeer-review

Abstract

Sudden stratospheric warming (SSW) events in Northern Hemisphere winter atmosphere play a significant effect on large ionospheric disturbances. Nevertheless, the SSW effects on small-scale structure in ionosphere, that is, the ionospheric F layer irregularities, are generally lack of understanding. This work carefully studied the equatorial F layer scintillation during the SSW event extending from 4 January to 5 February in 2013 by using the data of COSMIC/FORMOSAT-3 (a Constellation Observing System for Meteorology, Ionosphere, and Climate mission). The occurrence rate of ionospheric F layer scintillation was found to be apparently decreased by about 30% during the SSW period. This phenomenon was obviously seen in American sector (90°W–0°) and African sector (0°–90°E). Another prominent feature was the ~0.5 local time hour delay of maximum scintillation occurrence rate associated with the suppression of equatorial F layer irregularities in the first 2 hr after the sunset during the SSW event in January 2013.

Original languageEnglish
Article numbere2019JA027721
JournalJournal of Geophysical Research: Space Physics
Volume125
Issue number9
DOIs
Publication statusPublished - Sep 1 2020

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Geophysics

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