September 2019 Antarctic Sudden Stratospheric Warming: Quasi-6-Day Wave Burst and Ionospheric Effects

Y. Yamazaki; V. Matthias; Y. Miyoshi; C. Stolle; T. Siddiqui; G. Kervalishvili; J. Laštovička; M. Kozubek; W. Ward; D. R. Themens; S. Kristoffersen; P. Alken

doi:10.1029/2019GL086577

September 2019 Antarctic Sudden Stratospheric Warming: Quasi-6-Day Wave Burst and Ionospheric Effects

Y. Yamazaki^*, V. Matthias, Y. Miyoshi, C. Stolle, T. Siddiqui, G. Kervalishvili, J. Laštovička, M. Kozubek, W. Ward, D. R. Themens, S. Kristoffersen, P. Alken

^*Corresponding author for this work

Engineering and Physical Sciences

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

An exceptionally strong stationary planetary wave with Zonal Wavenumber 1 led to a sudden stratospheric warming (SSW) in the Southern Hemisphere in September 2019. Ionospheric data from European Space Agency's Swarm satellite constellation mission show prominent 6-day variations in the dayside low-latitude region at this time, which can be attributed to forcing from the middle atmosphere by the Rossby normal mode “quasi-6-day wave” (Q6DW). Geopotential height measurements by the Microwave Limb Sounder aboard National Aeronautics and Space Administration's Aura satellite reveal a burst of global Q6DW activity in the mesosphere and lower thermosphere during the SSW, which is one of the strongest in the record. The Q6DW is apparently generated in the polar stratosphere at 30–40 km, where the atmosphere is unstable due to strong vertical wind shear connected with planetary wave breaking. These results suggest that an Antarctic SSW can lead to ionospheric variability through wave forcing from the middle atmosphere.

Original language	English
Article number	e2019GL086577
Journal	Geophysical Research Letters
Volume	47
Issue number	1
DOIs	https://doi.org/10.1029/2019GL086577
Publication status	Published - 16 Jan 2020

Keywords

ionosphere
planetary wave
quasi-6-day wave
sudden stratospheric warming
Swarm
vertical coupling

ASJC Scopus subject areas

Geophysics
Earth and Planetary Sciences(all)

Access to Document

10.1029/2019GL086577

Cite this

Yamazaki, Y., Matthias, V., Miyoshi, Y., Stolle, C., Siddiqui, T., Kervalishvili, G., Laštovička, J., Kozubek, M., Ward, W., Themens, D. R., Kristoffersen, S., & Alken, P. (2020). September 2019 Antarctic Sudden Stratospheric Warming: Quasi-6-Day Wave Burst and Ionospheric Effects. Geophysical Research Letters, 47(1), Article e2019GL086577. https://doi.org/10.1029/2019GL086577

@article{b58bb0b9637c4745b0218ca15e68f281,

title = "September 2019 Antarctic Sudden Stratospheric Warming: Quasi-6-Day Wave Burst and Ionospheric Effects",

abstract = "An exceptionally strong stationary planetary wave with Zonal Wavenumber 1 led to a sudden stratospheric warming (SSW) in the Southern Hemisphere in September 2019. Ionospheric data from European Space Agency's Swarm satellite constellation mission show prominent 6-day variations in the dayside low-latitude region at this time, which can be attributed to forcing from the middle atmosphere by the Rossby normal mode “quasi-6-day wave” (Q6DW). Geopotential height measurements by the Microwave Limb Sounder aboard National Aeronautics and Space Administration's Aura satellite reveal a burst of global Q6DW activity in the mesosphere and lower thermosphere during the SSW, which is one of the strongest in the record. The Q6DW is apparently generated in the polar stratosphere at 30–40 km, where the atmosphere is unstable due to strong vertical wind shear connected with planetary wave breaking. These results suggest that an Antarctic SSW can lead to ionospheric variability through wave forcing from the middle atmosphere.",

keywords = "ionosphere, planetary wave, quasi-6-day wave, sudden stratospheric warming, Swarm, vertical coupling",

author = "Y. Yamazaki and V. Matthias and Y. Miyoshi and C. Stolle and T. Siddiqui and G. Kervalishvili and J. La{\v s}tovi{\v c}ka and M. Kozubek and W. Ward and Themens, {D. R.} and S. Kristoffersen and P. Alken",

year = "2020",

month = jan,

day = "16",

doi = "10.1029/2019GL086577",

language = "English",

volume = "47",

journal = "Geophysical Research Letters",

issn = "0094-8276",

publisher = "American Geophysical Union",

number = "1",

}

TY - JOUR

T1 - September 2019 Antarctic Sudden Stratospheric Warming

T2 - Quasi-6-Day Wave Burst and Ionospheric Effects

AU - Yamazaki, Y.

AU - Matthias, V.

AU - Miyoshi, Y.

AU - Stolle, C.

AU - Siddiqui, T.

AU - Kervalishvili, G.

AU - Laštovička, J.

AU - Kozubek, M.

AU - Ward, W.

AU - Themens, D. R.

AU - Kristoffersen, S.

AU - Alken, P.

PY - 2020/1/16

Y1 - 2020/1/16

N2 - An exceptionally strong stationary planetary wave with Zonal Wavenumber 1 led to a sudden stratospheric warming (SSW) in the Southern Hemisphere in September 2019. Ionospheric data from European Space Agency's Swarm satellite constellation mission show prominent 6-day variations in the dayside low-latitude region at this time, which can be attributed to forcing from the middle atmosphere by the Rossby normal mode “quasi-6-day wave” (Q6DW). Geopotential height measurements by the Microwave Limb Sounder aboard National Aeronautics and Space Administration's Aura satellite reveal a burst of global Q6DW activity in the mesosphere and lower thermosphere during the SSW, which is one of the strongest in the record. The Q6DW is apparently generated in the polar stratosphere at 30–40 km, where the atmosphere is unstable due to strong vertical wind shear connected with planetary wave breaking. These results suggest that an Antarctic SSW can lead to ionospheric variability through wave forcing from the middle atmosphere.

AB - An exceptionally strong stationary planetary wave with Zonal Wavenumber 1 led to a sudden stratospheric warming (SSW) in the Southern Hemisphere in September 2019. Ionospheric data from European Space Agency's Swarm satellite constellation mission show prominent 6-day variations in the dayside low-latitude region at this time, which can be attributed to forcing from the middle atmosphere by the Rossby normal mode “quasi-6-day wave” (Q6DW). Geopotential height measurements by the Microwave Limb Sounder aboard National Aeronautics and Space Administration's Aura satellite reveal a burst of global Q6DW activity in the mesosphere and lower thermosphere during the SSW, which is one of the strongest in the record. The Q6DW is apparently generated in the polar stratosphere at 30–40 km, where the atmosphere is unstable due to strong vertical wind shear connected with planetary wave breaking. These results suggest that an Antarctic SSW can lead to ionospheric variability through wave forcing from the middle atmosphere.

KW - ionosphere

KW - planetary wave

KW - quasi-6-day wave

KW - sudden stratospheric warming

KW - Swarm

KW - vertical coupling

UR - http://www.scopus.com/inward/record.url?scp=85078317973&partnerID=8YFLogxK

U2 - 10.1029/2019GL086577

DO - 10.1029/2019GL086577

M3 - Article

AN - SCOPUS:85078317973

SN - 0094-8276

VL - 47

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 1

M1 - e2019GL086577

ER -

September 2019 Antarctic Sudden Stratospheric Warming: Quasi-6-Day Wave Burst and Ionospheric Effects

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this