Estimation of gravity wave parameters to alleviate the delay in the Antarctic vortex breakup in general circulation models [PDF]
, 2018 The impact of optimal parameters in a non-orographic gravity wave drag parameterization on the middle atmosphere circulation of the Southern hemisphere is examined. Optimal parameters are estimated using a data assimilation technique.
Pulido, Manuel Arturo +1 more
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Planetary-Wave-Induced Transport in the Stratosphere [PDF]
Journal of the Atmospheric Sciences, 2003 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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Constraints on wave drag parameterization schemes for simulating the quasi-biennial oscillation. Part II: combined effects of gravity waves and equatorial planetary waves [PDF]
, 2005 This study examines the effect of combining equatorial planetary wave drag and gravity wave drag in a one-dimensional zonal mean model of the quasi-biennial oscillation (QBO). Several different combinations of planetary wave and gravity wave drag schemes
Campbell, Lucy J., Shepherd, Theodore G.
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Vertical motion of ionization induced by the linear interaction of tides with planetary waves [PDF]
Annales Geophysicae, 2003 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
Remote Sensing, 2022 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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Travelling Planetary Waves [PDF]
Tellus, 1964 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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A phase-space study of jet formation in planetary-scale fluids
, 2009 The interaction between planetary waves and an arbitrary zonal flow is studied from a phase-space viewpoint. Using the Wigner distribution, a planetary wave Vlasov equation is derived that includes the contribution of the mean flow to the zonal potential
Wordsworth, Robin D.
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Persistence of planetary wave type oscillations in the mid-latitude ionosphere
Annals of Geophysics, 2006 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]
Atmosphere, 1976 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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Trapping of giant-planet cores - I. Vortex aided trapping at the outer dead zone edge [PDF]
, 2013 In this paper the migration of a 10 Earth-mass planetary core is investigated at the outer boundary of the dead zone of a protoplanetary disc by means of 2D hydrodynamic simulations done with the graphics processor unit version of the FARGO code.
Ataiee, S. +3 more
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