Results 21 to 30 of about 949 (216)
Frontiers in Earth Science, 2021 This study reveals an intensified impact of winter (November–February mean) Arctic Oscillation (AO) on simultaneous precipitation over the mid–high latitudes of Asia (MHA) since the early 2000s.
Haibo Zhou, Haibo Zhou, Ke Fan
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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 comparative study of winds and tidal variability in the mesosphere/lower-thermosphere region over Bulgaria and the UK [PDF]
Annales Geophysicae, 2000 Meteor radars located in Bulgaria and the UK have been used to simultaneously measure winds in the mesosphere/lower-thermosphere region near 42.5°N, 26.6°E and 54.5°N, 3.9°W, respectively, over the period January 1991 to June 1992.
D. Pancheva +5 more
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Stationary planetary wave propagation in Northern Hemisphere winter – climatological analysis of the refractive index [PDF]
Atmospheric Chemistry and Physics, 2007 The probability density on a height-meridional plane of negative refractive index squared f(nk2<0) is introduced as a new analysis tool to investigate the climatology of the propagation conditions of stationary planetary waves based on NCEP/NCAR ...
Q. Li +3 more
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Meteorologische Zeitschrift, 1999 Wind measurements in the midlatitude mesopause region in 1983-1996 provide a climatology of planetary waves, as they are seen in oscillations of the prevailing wind.
Ch. Jacobi
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Effects of the planetary waves on the MLT airglow [PDF]
Annales Geophysicae, 2017 The planetary-wave-induced airglow variability in the mesosphere and lower thermosphere (MLT) is investigated using simulations with the general circulation model (GCM) of Kyushu University.
F. Egito, H. Takahashi, Y. Miyoshi
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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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Asymptotic Solutions for Equatorial Waves on Venus
Atmosphere, 2023 The atmosphere of Venus exhibits equatorial planetary-scale waves that are suspected to play an important role in its complex atmospheric circulation.
Javier Peralta
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More evidence for a planetary wave link with midlatitude E region coherent backscatter and sporadic E layers [PDF]
Annales Geophysicae, 2000 Measurements of midlatitude E region coherent backscatter obtained during four summers with SESCAT, a 50 MHz Doppler system operating in Crete, Greece, and concurrent ionosonde recordings from the same ionospheric volume obtained with a CADI for one ...
M. Voiculescu +5 more
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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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