Mid-Latitude Mesospheric Zonal Wave 1 and Wave 2 in Recent Boreal Winters
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 1 and wave 2 were studied with a focus on the mid-la...
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| Format: | Article |
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MDPI AG
2021-09-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/13/18/3749 |
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| author | Yu Shi Oleksandr Evtushevsky Valerii Shulga Gennadi Milinevsky Andrew Klekociuk Yulia Andrienko Wei Han |
| author_facet | Yu Shi Oleksandr Evtushevsky Valerii Shulga Gennadi Milinevsky Andrew Klekociuk Yulia Andrienko Wei Han |
| author_sort | Yu Shi |
| collection | DOAJ |
| description | 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 1 and wave 2 were studied with a focus on the mid-latitude mesosphere at 50°N latitude. Aura Microwave Limb Sounder measurements were used to estimate wave amplitudes in geopotential height during sudden stratospheric warmings in recent boreal winters. 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 <i>r</i> = 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 associated with zonal flow instabilities and breaking or dissipation of gravity waves are discussed. |
| first_indexed | 2024-03-10T07:14:38Z |
| format | Article |
| id | doaj.art-97251733d10f4fd983b5d2c88b2fc90a |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T07:14:38Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-97251733d10f4fd983b5d2c88b2fc90a2023-11-22T15:07:45ZengMDPI AGRemote Sensing2072-42922021-09-011318374910.3390/rs13183749Mid-Latitude Mesospheric Zonal Wave 1 and Wave 2 in Recent Boreal WintersYu Shi0Oleksandr Evtushevsky1Valerii Shulga2Gennadi Milinevsky3Andrew Klekociuk4Yulia Andrienko5Wei Han6International Center of Future Science, College of Physics, Jilin University, Changchun 130012, ChinaPhysics Faculty, Taras Shevchenko National University of Kyiv, 01601 Kyiv, UkraineInternational Center of Future Science, College of Physics, Jilin University, Changchun 130012, ChinaInternational Center of Future Science, College of Physics, Jilin University, Changchun 130012, ChinaAntarctic Climate Program, Australian Antarctic Division, Kingston 7050, AustraliaPhysics Faculty, Taras Shevchenko National University of Kyiv, 01601 Kyiv, UkraineInternational Center of Future Science, College of Physics, Jilin University, Changchun 130012, ChinaPlanetary 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 1 and wave 2 were studied with a focus on the mid-latitude mesosphere at 50°N latitude. Aura Microwave Limb Sounder measurements were used to estimate wave amplitudes in geopotential height during sudden stratospheric warmings in recent boreal winters. 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 <i>r</i> = 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 associated with zonal flow instabilities and breaking or dissipation of gravity waves are discussed.https://www.mdpi.com/2072-4292/13/18/3749zonal planetary wavepolar vortexmesospherestratospheremajor sudden stratospheric warming |
| spellingShingle | Yu Shi Oleksandr Evtushevsky Valerii Shulga Gennadi Milinevsky Andrew Klekociuk Yulia Andrienko Wei Han Mid-Latitude Mesospheric Zonal Wave 1 and Wave 2 in Recent Boreal Winters Remote Sensing zonal planetary wave polar vortex mesosphere stratosphere major sudden stratospheric warming |
| title | Mid-Latitude Mesospheric Zonal Wave 1 and Wave 2 in Recent Boreal Winters |
| title_full | Mid-Latitude Mesospheric Zonal Wave 1 and Wave 2 in Recent Boreal Winters |
| title_fullStr | Mid-Latitude Mesospheric Zonal Wave 1 and Wave 2 in Recent Boreal Winters |
| title_full_unstemmed | Mid-Latitude Mesospheric Zonal Wave 1 and Wave 2 in Recent Boreal Winters |
| title_short | Mid-Latitude Mesospheric Zonal Wave 1 and Wave 2 in Recent Boreal Winters |
| title_sort | mid latitude mesospheric zonal wave 1 and wave 2 in recent boreal winters |
| topic | zonal planetary wave polar vortex mesosphere stratosphere major sudden stratospheric warming |
| url | https://www.mdpi.com/2072-4292/13/18/3749 |
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