Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Mid-Latitude Mesospheric Zonal Wave 1 and Wave 2 in Winter 2020–2021

Yu Shi
ORCID logo ,
Oleksandr Evtushevsky
,
Valerii Shulga
ORCID logo ,
Gennadi Milinevsky
* ,
Andrew Klekociuk
,
Yulia Andrienko
,
Wei Han
Version 1 : Received: 25 July 2021 / Approved: 26 July 2021 / Online: 26 July 2021 (10:14:10 CEST)

A peer-reviewed article of this Preprint also exists.

Shi, Y.; Evtushevsky, O.; Shulga, V.; Milinevsky, G.; Klekociuk, A.; Andrienko, Y.; Han, W. Mid-Latitude Mesospheric Zonal Wave 1 and Wave 2 in Recent Boreal Winters. Remote Sens. 2021, 13, 3749. Shi, Y.; Evtushevsky, O.; Shulga, V.; Milinevsky, G.; Klekociuk, A.; Andrienko, Y.; Han, W. Mid-Latitude Mesospheric Zonal Wave 1 and Wave 2 in Recent Boreal Winters. Remote Sens. 2021, 13, 3749.

Abstract

Planetary waves in the mesosphere are studied using observational data and models to establish their origin, as there are indications of their generation independently of waves in the stratosphere. The quantitative relationships between zonal wave numbers m = 1 (wave 1) and m = 2 (wave 2) were studied with a focus on the mid-latitude mesosphere at 50N latitude. Aura Microwave Limb Sounder measurements were used to estimate wave amplitudes in geopotential height during the 2020–2021 winter major sudden stratospheric warming. The moving correlation between the wave amplitudes shows that, in comparison with the anticorrelation in the stratosphere, wave 2 positively correlates with wave 1 and propagates ahead of it in the mesosphere. A positive correlation r = 0.5–0.6, statistically significant at the 95% confidence level, is observed at 1–5-day time lag and in the 75–91 km altitude range, which is the upper mesosphere–mesopause region. Wavelet analysis shows a clear 8-day period in waves 1 and 2 in the mesosphere at 0.01 hPa (80 km), while in the stratosphere–lower mesosphere the period is twice as long at 16-days; this is statistically significant only in wave 2. Possible sources of mesospheric planetary waves are discussed.

Keywords

zonal planetary wave; polar vortex; mesosphere; stratosphere; major sudden stratospheric warming

Subject

Environmental and Earth Sciences, Atmospheric Science and Meteorology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Download PDF

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0
Get PDF Cite Share 0
Bookmark BibSonomy Mendeley Reddit Delicious
×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.