Satellite observations of middle atmosphere gravity wave absolute momentum flux and of its vertical gradient during recent stratospheric warmings [PDF]
Atmospheric Chemistry and Physics, 2016 Sudden stratospheric warmings (SSWs) are circulation anomalies in the polar region during winter. They mostly occur in the Northern Hemisphere and affect also surface weather and climate.
M. Ern +12 more
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Quadratic Theory of Gravity with a Scalar Field and Type I Shapovalov Wave Spacetimes
Universe, 2022 For the quadratic theory of gravity with a scalar field, exact solutions are found for gravitational-wave models in Shapovalov I-type spacetimes, which do not arise in models of the general theory of relativity.
Konstantin Osetrin +2 more
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Long-term lidar observations of wintertime gravity wave activity over northern Sweden [PDF]
Annales Geophysicae, 2014 This paper presents an analysis of gravity wave activity over northern Sweden as deduced from 18 years of wintertime lidar measurements at Esrange (68° N, 21° E).
B. Ehard +4 more
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Time-Reversal Analogy by Nonlinear Acoustic–Gravity Wave Triad Resonance
Fluids, 2019 Time reversal of free-surface water (gravity) waves due to a sudden change in the effective gravity has been extensively studied in recent years. Here, we show that an analogy to time-reversal can be obtained using nonlinear acoustic-gravity wave theory.
Usama Kadri
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Intercomparison of stratospheric gravity wave observations with AIRS and IASI [PDF]
Atmospheric Measurement Techniques, 2014 Gravity waves are an important driver for the atmospheric circulation and have substantial impact on weather and climate. Satellite instruments offer excellent opportunities to study gravity waves on a global scale.
L. Hoffmann +6 more
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GRACILE: a comprehensive climatology of atmospheric gravity wave parameters based on satellite limb soundings [PDF]
Earth System Science Data, 2018 Gravity waves are one of the main drivers of atmospheric dynamics. The spatial resolution of most global atmospheric models, however, is too coarse to properly resolve the small scales of gravity waves, which range from tens to a few thousand ...
M. Ern +7 more
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A statistical study of gravity waves from radiosonde observations at Wuhan (30° N, 114° E) China [PDF]
Annales Geophysicae, 2005 Several works concerning the dynamical and thermal structures and inertial gravity wave activities in the troposphere and lower stratosphere (TLS) from the radiosonde observation have been reported before, but these works were concentrated on either ...
S. D. Zhang, S. D. Zhang, F. Yi, F. Yi
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Removing spurious inertial instability signals from gravity wave temperature perturbations using spectral filtering methods [PDF]
Atmospheric Measurement Techniques, 2020 Gravity waves are important drivers of dynamic processes in particular in the middle atmosphere. To analyse atmospheric data for gravity wave signals, it is essential to separate gravity wave perturbations from atmospheric variability due to other ...
C. Strube, M. Ern, P. Preusse, M. Riese
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Atmospheric inertia-gravity waves retrieved from level-2 data of the satellite microwave limb sounder Aura/MLS [PDF]
Annales Geophysicae, 2016 The temperature profiles of the satellite experiment Aura/MLS are horizontally spaced by 1.5° or 165 km along the satellite orbit. These level-2 data contain valuable information about horizontal fluctuations in temperature, which are mainly induced ...
K. Hocke +11 more
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Influence of the upper gravity-wave damping layer on precipitation over complex terrain
Frontiers in Environmental Science, 2022 The upper boundary condition of a numerical model can significantly influence the model prediction results. This study used the Weather Research and Forecasting model to introduce the Rayleigh damping layer in the complex terrain of southern Gansu, China.
H. X. Duan +12 more
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