Generation of normal atmospheric modes by stratospheric vacillations

Pogoreltsev, Alexander

doi:10.1134/s0001433807040044

Cited by 39 publications

(41 citation statements)

References 25 publications

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“…6 (upper panel) shows a substantial inter-annual variability and a noticeable increase in the standing wave amplitude. In general, due to this increase we can expect a similar increase in the amplitudes of traveling waves (Pogoreltsev, 2007). However, all westward propagating waves decrease with time (see lower panel of Figs.…”

Section: Intra-seasonal Variability Of Planetary Waves: Stratosphericmentioning

confidence: 66%

Variability of planetary waves as a signature of possible climatic changes

Pogoreltsev

Kanukhina

Suvorova

et al. 2009

Journal of Atmospheric and Solar-Terrestrial Physics

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Section: Intra-seasonal Variability Of Planetary Waves: Stratosphericmentioning

confidence: 66%

Variability of planetary waves as a signature of possible climatic changes

Pogoreltsev

Kanukhina

Suvorova

et al. 2009

Journal of Atmospheric and Solar-Terrestrial Physics

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“…It was noted above that we can consider this variability as ''interannual''. A similar interannual variability exists in the atmosphere, for instance, some examples obtained on the base of the NCEP/NCAR data analysis are presented by Pogoreltsev (2007), but further discussion of this question is outside of the scope of the paper. Figs.…”

Section: Propagation Of Pw Into the Thermospherementioning

confidence: 94%

“…(5) has been performed (Pogoreltsev, 2007). The waves in these runs were forced by an external periodic heating localized in the troposphere.…”

Section: Longer-period Nm Forced By Stratospheric Vacillationsmentioning

confidence: 99%

“…In conclusion of this section it should be noted that monthly mean amplitudes of the stationary PW, the intensity of the mean flow, and the temperature in the winter stratosphere change substantially from one run to another. To some extent we can consider this modelled variability as an interannual one (Pogoreltsev, 2007), and, if we want to calculate the climatological distributions of the mean fields and stationary PW using the middle atmosphere models, we have to consider the statistical properties of the results obtained in several (10 or even more) runs.…”

Section: Article In Pressmentioning

confidence: 99%

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Planetary waves in coupling the lower and upper atmosphere

Pogoreltsev

Vlasov

Fröhlich

et al. 2007

Journal of Atmospheric and Solar-Terrestrial Physics

138

101

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“…To take into account the OGW influence on atmospheric dynamics, the above-mentioned parameterization was implemented into the middle and upper atmosphere general circulation model (MUAM) described by Pogoreltsev (2007) and Pogoreltsev et al (2007). The starting point for this model was the COMMA general circulation model developed in Cologne University, Germany (e.g., Jakobs et al 1986;Ebel et al 1995).…”

Section: Methodsmentioning

confidence: 99%

Simulating influences of QBO phases and orographic gravity wave forcing on planetary waves in the middle atmosphere

et al. 2015

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Recently developed parameterization of stationary orographic gravity waves (OGWs) generated by the Earth's topography was implemented into a general circulation model of the middle and upper atmosphere. We performed numerical simulations of the zonal mean wind and amplitudes of stationary planetary waves and normal atmospheric modes with periods of 4-16 days at altitudes from the troposphere to the lower thermosphere in January for easterly and westerly phases of the quasi-biennial oscillation (QBO) including and excluding the stationary OGW parameterization. Simulations show that accounting dynamical and thermal effects of stationary OGWs can lead to substantial changes (up to 50-90 %) in the amplitudes of stationary planetary waves. Amplitudes of westward travelling normal atmospheric modes change (up to 50-90 %) at different altitudes and latitudes of the northern hemisphere due to OGW effects. Transitions from the easterly to westerly QBO phases can change planetary wave amplitudes up to ±30-90 % at middle and high latitudes. These changes in PW amplitudes are consistent with distributions of EP-flux and refractive index under different QBO phases simulated including our parameterization of stationary OGWs.

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Generation of normal atmospheric modes by stratospheric vacillations

Cited by 39 publications

References 25 publications

Variability of planetary waves as a signature of possible climatic changes

Variability of planetary waves as a signature of possible climatic changes

Planetary waves in coupling the lower and upper atmosphere

Simulating influences of QBO phases and orographic gravity wave forcing on planetary waves in the middle atmosphere

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