Sudden stratospheric warmings: statistical characteristics and influence on NO2 and O3 total contents

Ageyeva, V. Yu.; Груздев, А. Н.; Елохов, А. С.; Мохов, И. И.; Zueva, N. E.

doi:10.1134/s0001433817050036

Cited by 22 publications

(5 citation statements)

References 23 publications

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“…Here, the SAOZ data are used to provide: (a) an independent comparison dataset against which to test the O3 observations from ozonesondes and Aura/MLS, and (b) to determine any change in total column NO2 from before, during, and after SSWs (cf. Ageyeva et al [2017]).…”

Section: Saoz Ground-based Uv-visible Spectrometer Datamentioning

confidence: 99%

“…In contrast to such analyses, the work in this study is intended to reveal (and quantify) the statistical changes that occur, on average during SSWs, with respect to the underlying (naturally occurring) annual variation (see also Päivärinta et al [2013]; Ageyeva et al [2017]). Such seasonalcorrections to the data (to ascertain the deviation from the natural variation) were previously made with respect to changes in O3 during solar-proton events (SPEs) [cf.…”

Section: Introductionmentioning

confidence: 99%

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Observed response of stratospheric and mesospheric composition to sudden stratospheric warmings

Denton

Kivi

Ulich³

et al. 2019

Journal of Atmospheric and Solar-Terrestrial Physics

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In this study we investigate and quantify the statistical changes that occur in the stratosphere and mesosphere during 37 sudden stratospheric warming (SSW) events from 1989 to 2016. We consider changes in the in-situ ozonesonde observations of the stratosphere from four sites in the northern hemisphere (Ny-Ålesund, Sodankylä, Lerwick, and Boulder). These data are supported by Aura/MLS satellite observations of the ozone volumetric mixing ratio above each site, and also ground-based total-column O3 and NO2, and mesospheric wind measurements, measured at the Sodankylä site. Due to the long-time periods under consideration (weeks/months) we evaluate the observations explicitly in relation to the annual mean of each data set. Following the onset of SSWs we observe an increase in temperature above the mean (for sites usually within the polar vortex) that persists for >~40 days. During this time the stratospheric and mesospheric ozone (volume mixing ratio and partial pressure) increases by ~20% as observed by both ozonesonde and satellite instrumentation. Ground-based observations from Sodankylä demonstrate the total column NO2 does not change significantly during SSWs, remaining close to the annual mean. The zonal wind direction in the mesosphere at Sodankylä shows a clear reversal close to SSW onset. Our results have broad implications for understanding the statistical variability of atmospheric changes occurring due to SSWs and provides quantification of such changes for comparison with modelling studies.

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Section: Saoz Ground-based Uv-visible Spectrometer Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Observed response of stratospheric and mesospheric composition to sudden stratospheric warmings

Denton

Kivi

Ulich³

et al. 2019

Journal of Atmospheric and Solar-Terrestrial Physics

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“…During SSW events, this mechanism is interrupted: downwelling over the winter stratosphere is enhanced while it weakens or ceases in the mesosphere, and temperatures in the mesosphere cool as a result. In a SSW followed by an elevated stratopause (ES) event, the climatological stratopause, which is usually at an altitude of ∼55 km, disappears during the warming and, as the polar vortex recovers from the effects of the SSW, a new stratopause is formed usually at an altitude higher than the climatological altitude after several days (Ageyeva et al., 2017; Chandran et al., 2013; Limpasuvan et al., 2016; Manney et al., 2008). This stratopause discontinuity typically lasts 10 days or longer and some of the examples of such events are shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

Inter‐Hemispheric Coupling During Sudden Stratospheric Warming Events With Elevated Stratopause

2022

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The Earth's atmosphere is highly coupled internally among the different vertical layers and geographical regions, and externally with oceans, land, and space (Yiğit & Medvedev, 2015). Sudden stratospheric warmings (SSW) occur in the winter-time polar stratosphere during which the temperature increases substantially (∼20-30 K) and are accompanied by a stratospheric zonal wind reversal in the high latitude/polar region. SSW are a result of interaction between upward propagating planetary waves and the zonal mean flow, causing the reversal of the stratospheric zonal winds and subsequent breakdown of the polar vortex (

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“…The dependence of the dates of the late SC rearrangements on the occurrence of a strong SSW in the winter stratosphere was also revealed. In [1], information about a strong SSW is given. A comparison of data on late perestroika with data from [1] shows that late perestroika occurs in years with strong SSW.…”

Section: Winter (Xii-ii)mentioning

confidence: 99%

“…In [1], information about a strong SSW is given. A comparison of data on late perestroika with data from [1] shows that late perestroika occurs in years with strong SSW. In addition, in the polar zone (90 -70°N) in 1986 -2002 there was a tendency for the dates of spring rearrangements to be delayed at a rate of ~ 27 days /10 years, and in a later period (2002 -2019), on the contrary, spring rearrangements began to occur earlier at a rate of 18 days/10 years.…”

Section: Winter (Xii-ii)mentioning

confidence: 99%

Climatic changes in European Russia and the Republic of Belarus in the XX-XXI centuries under the influence of atmospheric circulation

Perevedentsev

Sherstyukov

Shantalinsky

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Climatic changes in the atmosphere from the Earth’s level to the altitude of 80 km in Russia and the Republic of Belarus (RB) are considered using data from 1251 stations of RIHMI-WDC (1976-2019), ERA5 reanalysis (1979-2019), and 99 long-row stations located in the European part of Russia (ER) and the Republic of Belarus (RB). An analysis of constructed trends in the air temperature (AT) and atmospheric precipitation is made to assess the spatial and temporal variability of the thermal and humidity regimes in the territory. Some differences in the rates of warming between the winter and summer seasons, troposphere and stratosphere are revealed. Near the earth's surface, the rate of warming is maximum in polar latitudes; the summer stratosphere cools more strongly than the winter one. To assess the influence of atmospheric circulation on the thermal regimes of ER and RB, the correlation coefficients between AT and circulation indices AO, NAO, SCAND, and EAWR are calculated. Using a low-pass Potter filter, a 40-year periodicity of temperature fluctuations in the ER and RB in November is revealed. In the winter stratosphere, a relationship between temperature fluctuations in the polar zone and the Arctic oscillation index is found. The spring restructuring of the stratospheric circulation occurs with a delay if strong sudden stratospheric warmings (SSW) occur in the stratosphere in winter.

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Sudden stratospheric warmings: statistical characteristics and influence on NO2 and O3 total contents

Cited by 22 publications

References 23 publications

Observed response of stratospheric and mesospheric composition to sudden stratospheric warmings

Observed response of stratospheric and mesospheric composition to sudden stratospheric warmings

Inter‐Hemispheric Coupling During Sudden Stratospheric Warming Events With Elevated Stratopause

Climatic changes in European Russia and the Republic of Belarus in the XX-XXI centuries under the influence of atmospheric circulation

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