Results 41 to 50 of about 2,681,233 (247)
Comptes Rendus. Mathématique, 2009 Waves associated to large scale oceanic motions are gravity waves (Poincaré waves which disperse fast) and quasigeostrophic waves (Rossby waves). In this Note, we show by semiclassical arguments, that Rossby waves can be trapped and we characterize the corresponding initial conditions.
Cheverry, Christophe +3 more
openaire +3 more sources
Rossby Solitary Waves Generated by Wavy Bottom in Stratified Fluids
Advances in Mechanical Engineering, 2013 Rossby solitary waves generated by a wavy bottom are studied in stratified fluids. From the quasigeostrophic vorticity equation including a wavy bottom and dissipation, by employing perturbation expansions and stretching transforms of time and space, a ...
Hongwei Yang +3 more
doaj +1 more source
Rossby wave second harmonic generation observed in the middle atmosphere
Nature Communications, 2022 Rossby waves occur in rotating fluids. Here, the authors show observation of a Rossby wave second harmonic generation event in the middle atmosphere and confirm theoretically anticipated Rossby wave nonlinearity.
Maosheng He, Jeffrey M. Forbes
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On the presence of equatorial waves in the lower stratosphere of a general circulation model [PDF]
Atmospheric Chemistry and Physics, 2014 To challenge the hypothesis that equatorial waves in the lower stratosphere are essentially forced by convection, we use the LMDz atmospheric model extended to the stratosphere and compare two versions having very different convection schemes but no ...
P. Maury, F. Lott
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International Journal of Climatology, EarlyView.This study investigates summer Greenland atmospheric blocking using the Lagrangian tracking Python package blocktrack applied to ERA5 reanalysis and CMIP6 models. Two types of blocks—upstream (Northern Canada origin) and retrograding (Northern Atlantic origin)—are distinguished, with upstream blocks driving recent observed frequency increasing trends ...
Michele Filippucci +2 more
wiley +1 more source
Equatorial wave circulation associated with subseasonal convective variability over the subtropical western North Pacific in boreal summer [PDF]
Weather and Climate DynamicsAtmospheric convection over the subtropical western North Pacific (SWNP) during boreal summer varies on timescales of around 10 d, with significant effects on both local and remote circulation.
P. Chen +8 more
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Solitonic interactions for Rossby waves with the influence of Coriolis parameters
Results in Physics, 2021 In the current study, the Rossby waves envelope near the equator is studied starting from a potential vorticity equation with the horizontal component of Coriolis parameter.
XiaoJun Yin +3 more
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International Journal of Climatology, EarlyView.Heatwaves have intensified under a warming climate, producing substantial environmental and societal impacts. This study characterizes heatwave regimes in two contrasting regions of Mexico using a percentile‐based threshold and a Poisson distribution framework.
Jorge Cortés‐Ramos +6 more
wiley +1 more source
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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International Journal of Climatology, EarlyView.Conceptual hydroclimatic pathway linking the concurrent negative North Atlantic Oscillation (NAO) phase and weak La Niña conditions to extreme February rainfall and flash flooding in Northwest Africa. ABSTRACT The winter of 2025–2026 in Morocco exhibited a rapid hydroclimatic transition from prolonged drought to widespread flooding, representing an ...
Afshin Amiri +2 more
wiley +1 more source