Long-term lidar observations of wintertime gravity wave activity over northern Sweden [PDF]
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
doaj +1 more source
Time-Reversal Analogy by Nonlinear Acoustic–Gravity Wave Triad Resonance
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
doaj +1 more source
Intercomparison of stratospheric gravity wave observations with AIRS and IASI [PDF]
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
doaj +1 more source
GRACILE: a comprehensive climatology of atmospheric gravity wave parameters based on satellite limb soundings [PDF]
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
doaj +1 more source
Noise generation in the solid Earth, oceans, and atmosphere, from non-linear interacting surface gravity waves in finite depth [PDF]
Oceanic pressure measurements, even in very deep water, and atmospheric pressure or seismic records, from anywhere on Earth, contain noise with dominant periods between 3 and 10 seconds, that is believed to be excited by ocean surface gravity waves. Most
Ardhuin, Fabrice, Herbers, Thomas H. C.
core +4 more sources
Influence of the upper gravity-wave damping layer on precipitation over complex terrain
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
doaj +1 more source
Removing spurious inertial instability signals from gravity wave temperature perturbations using spectral filtering methods [PDF]
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
doaj +1 more source
Quantum state correction of relic gravitons from quantum gravity [PDF]
The semiclassical approach to quantum gravity would yield the Schroedinger formalism for the wave function of metric perturbations or gravitons plus quantum gravity correcting terms in pure gravity; thus, in the inflationary scenario, we should expect ...
B. Allen +11 more
core +2 more sources
Atmospheric inertia-gravity waves retrieved from level-2 data of the satellite microwave limb sounder Aura/MLS [PDF]
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
doaj +1 more source
A class of colliding waves in metric-affine gravity, nonmetricity and torsion shock waves [PDF]
By using our recent generalization of the colliding waves concept to metric-affine gravity theories, and also our generalization of the advanced and retarded time coordinate representation in terms of Jacobi functions, we find a general class of ...
Alberto Garcı́a +11 more
core +2 more sources

