Results 21 to 30 of about 7,328 (267)
Effects of planetary wave‐breaking on the seasonal variation of total column ozone
The effects of planetary wave breaking on the seasonal variation of total column ozone are investigated using a zonally averaged chemical‐radiative‐transport model of the atmosphere.
Terrence R. Nathan +3 more
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We examine the zonal wavenumber spectrum of planetary (Rossby) waves in the atmosphere above Antarctica in each of two contrasting years: in 2019, when there was a sudden stratospheric warming (SSW), and in 2020 when the Antarctic stratospheric vortex ...
A. Grytsai +5 more
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Travelling Planetary Waves [PDF]
The oscillation of longitudinal position of the very long atmospheric waves, of wave-number 1, 2, and 3 has been described by KUBOTA and IIDA (1954), ELIASEN (1958), and others. In this note the motions of these waves are further examined, the data being Fourier zonal harmonics of the 500 mb height at latitudes 40", 50 ", and 60" N for the period ...
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Stratospheric climate change is an important part of global change.Observational and modeling studies disclosed that the stratosphere had shown in general a cooling trend during around the last 20 years of the 20th century.Ozone depletion is believed to ...
Renqiang LIU, Jihong XIE, Ying LI
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Planetary-Wave-Induced Transport in the Stratosphere [PDF]
In the stratosphere, chemical tracers are drawn systematically from the equator to the pole. This observed Brewer–Dobson circulation is driven by wave drag, which in the stratosphere arises mainly from the breaking and dissipation of planetary-scale Rossby waves. While the overall sense of the circulation follows from fundamental physical principles, a
Pendlebury, Diane, Shepherd, Theodore G.
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Vertical motion of ionization induced by the linear interaction of tides with planetary waves [PDF]
Experimental findings have shown that travelling planetary waves modulate the occurrence of mid-latitude sporadic-E-layers. Using a simple quantitative model, we analyse the effects of the linear interaction between tides and planetary waves on ion
M. Voiculescu, M. Ignat
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Evaluating Long-Term Variability of the Arctic Stratospheric Polar Vortex Simulated by CMIP6 Models
The Arctic stratospheric polar vortex is a key component of the climate system, which has significant impacts on surface temperatures in the mid-latitudes and polar regions.
Siyi Zhao +6 more
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Inter-annual variations of 6.5-day planetary waves and their relations with QBO
This paper studies inter-annual variations of 6.5-Day Waves (6.5DWs) observed at altitudes 20−110 km between 52°S−52°N latitudes during March 2002−January 2021, and how these variations were related to the equatorial stratospheric Quasi-Biennial ...
YingYing Huang +3 more
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Persistence of planetary wave type oscillations in the mid-latitude ionosphere
Planetary wave type oscillations have been observed in the lower and middle atmosphere but also in the ionosphere, including the ionospheric F2 layer. Here we deal with the oscillations in foF2 analysed for two Japanese and two US stations over a solar ...
P. Krizan, P. Sauli, J. Lastovicka
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On the modelling of stationary planetary waves [PDF]
Abstract The structure of the atmospheric stationary planetary waves is obtained by means of the quasi‐geostrophic linear model developed by Matsuno (1 970). To show the influence of the upper boundary condition on the structure of the waves, the latter is computed using a rigid top and a radiation condition.
Christiane Beaudoin, Jacques Derome
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