Results 21 to 30 of about 35,327 (307)

Gravity waves in the Sun [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2005
We present numerical simulations of penetrative convection and gravity wave excitation in the Sun. Gravity waves are self-consistently generated by a convective zone overlying a radiative interior. We produce power spectra for gravity waves in the radiative region as well as estimates for the energy flux of gravity waves below the convection zone.
Rogers, Tamara M., Glatzmaier, Gary A.
openaire   +2 more sources

Parasitic Capillary Waves on Small-Amplitude Gravity Waves with a Linear Shear Current

open access: yesJournal of Marine Science and Engineering, 2021
This paper describes a numerical investigation of ripples generated on the front face of deep-water gravity waves progressing on a vertically sheared current with the linearly changing horizontal velocity distribution, namely parasitic capillary waves ...
Sunao Murashige, Wooyoung Choi
doaj   +1 more source

Gravity waves in three dimensions [PDF]

open access: yesPhysical Review D, 2015
We find the explicit forms of the anti-de Sitter plane, anti-de Sitter spherical, and pp waves that solve both the linearized and exact field equations of the most general higher derivative gravity theory in three dimensions. As a sub-class, we work out the six derivative theory and the critical version of it where the masses of the two spin-2 ...
Gürses, M., Şişman, T.C., Tekin, B.
openaire   +5 more sources

Birkhoff Normal form for Gravity Water Waves [PDF]

open access: yes, 2021
We consider the gravity water waves system with a one-dimensional periodic interface in infinite depth, and present the proof of the rigorous reduction of these equations to their cubic Birkhoff normal form (Berti et al.
Pusateri, Fabio   +2 more
core   +2 more sources

Internal Gravity Waves [PDF]

open access: yes, 2019
The ocean's interior is filled with waves that can only exist because the ocean is vertically stratified in temperature and salinity. Like waves at the ocean surface, internal waves are restored by gravity. These internal gravity waves are generated by wind, tides, and low-frequency flows.
Buijsman, Maarten C.   +3 more
openaire   +2 more sources

Geodynamic waves and gravity

open access: yesGeodynamics & Tectonophysics, 2014
Gravity phenomena related to the Earth movements in the Solar System and through the Galaxy are reviewed. Such movements are manifested by geological processes on the Earth and correlate with geophysical fields of the Earth. It is concluded that geodynamic processes and the gravity phenomena (including those of cosmic nature) are related.  The state of
VIKULIN A.V.   +2 more
openaire   +4 more sources

Heating and cooling of the thermosphere by internal gravity waves [PDF]

open access: yes, 2009
For the first time, estimates of heating and cooling in the upper thermosphere due to dissipating and breaking gravity waves ( GWs) of tropospheric origin have been obtained with a comprehensive general circulation model ( GCM).
Yiğit, E.   +5 more
core   +1 more source

Observation of Gravity Wave Vertical Propagation through a Mesospheric Inversion Layer

open access: yesAtmosphere, 2022
The impact of a mesospheric temperature inversion on the vertical propagation of gravity waves has been investigated using OH airglow images and ground-based Rayleigh lidar measurements carried out in December 2017 at the Haute-Provence Observatory (OHP,
Thurian Le Du   +3 more
doaj   +1 more source

The Gravity of Light-Waves [PDF]

open access: yesUniverse, 2018
Light waves carry along their own gravitational field; for simple plain electromagnetic waves, the gravitational field takes the form of a p p -wave. I present the corresponding exact solution of the Einstein–Maxwell equations and discuss the dynamics of classical particles and quantum fields in this gravitational and electromagnetic background.
openaire   +3 more sources

Dynamics of Mechanical Oscillator Mechanism for Stratospheric Gravity Waves Generated by Convection

open access: yesAtmosphere, 2020
The mechanical oscillator mechanism (MOM) for stratospheric gravity waves generated by convection is investigated with a dynamics model using the two-dimensional, nonhydrostatic and linear governing equations based on the Boussinesq approximation.
Shiwang Yu   +3 more
doaj   +1 more source

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