QUASI-STATIONARY PLANETARY WAVES IN MID-LATITUDE STRATOSPHERE–MESOSPHERE IN WINTER 2011-2020

Chenning Zhang,Oleksandr Evtushevsky,Gennadi Milinevsky

doi:10.36074/grail-of-science.19.11.2021.060

Chenning Zhang, Oleksandr Evtushevsky + Show 1 more

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https://doi.org/10.36074/grail-of-science.19.11.2021.060

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Abstract

The 10-year climatology (2011–2020) of quasi-stationary planetary waves in the mid-latitude stratosphere and mesosphere (40–50N, up to 90 km) has been analyzed. Longitude–altitude sections of geopotential height and ozone have been obtained using the Aura MLS satellite data. It is found that stationary wave 1 propagates into the mesosphere from the North American High and Icelandic Low, which are adjacent surface pressure anomalies in the structure of stationary wave 2. Unexpectedly, the strongest pressure anomaly in the Aleutian Low region does not contribute to the stationary wave 1 formation in the mesosphere. The vertical phase transformations of stationary waves in geopotential height and ozone show inconsistencies that should be studied separately.

Highlights

Quasi-stationary waves (QSWs) in the atmosphere are known to be responsible for the formation of fairly stable planetary-scale anomalies in atmospheric variables and in the composition of the atmosphere [1,2,3]
The QSWs influence leads to zonal asymmetry of polar ozone, temperature and zonal wind in winter and spring [2, 3, 7]
We present mid-latitude QSWs climatology in the Northern Hemisphere over the last decade 2011–2020

Summary

Introduction

Quasi-stationary waves (QSWs) in the atmosphere are known to be responsible for the formation of fairly stable planetary-scale anomalies in atmospheric variables and in the composition of the atmosphere (temperature, wind, sea level pressure, ozone, water vapor etc.) [1,2,3]. The QSWs originate in the troposphere from orographic and thermal sources [4] and penetrate upward into the stratosphere and mesosphere [2, 3, 5]. The longest QSWs with zonal wave numbers m = 1 and m = 2 cause zonal asymmetry in the atmosphere and contribute. Авторські права захищені | Creative Commons Attribution 4.0 International License

SECTION XXI. PHYSICS AND MATHEMATICS

Results

Conclusions