Nonlinear evolution of internal gravity waves in the Earth’s ionosphere: Analytical and numerical approach
Sign Up to like & getrecommendations! Published in 2022 at "Advances in Space Research"
DOI: 10.1016/j.asr.2022.02.014
Abstract: The nonlinear propagation of internal gravity waves in the weakly ionized, incompressible Earth’s ionosphere is studied using the fluid theory approach. Previous theory in the literature is advanced by the effects of the terrestrial inhomogeneous… read more here.
Keywords: analytical numerical; earth ionosphere; internal gravity; approach ... See more keywords
Generation of oceanic internal gravity waves by a cyclonic surface stress disturbance
Sign Up to like & getrecommendations! Published in 2019 at "Dynamics of Atmospheres and Oceans"
DOI: 10.1016/j.dynatmoce.2019.03.005
Abstract: Abstract Atmospheric cyclones with strong winds significantly impact ocean circulation, regional sea surface temperature, and deep water formation across the global oceans. Thus they are expected to play a key role in a variety of… read more here.
Keywords: gravity waves; generation; surface; internal gravity ... See more keywords
The wave-induced flow of internal gravity wavepackets with arbitrary aspect ratio
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2017.745
Abstract: We examine the wave-induced flow of small-amplitude, quasi-monochromatic, three-dimensional, Boussinesq internal gravity wavepackets in a uniformly stratified ambient. It has been known since Bretherton (J. Fluid Mech., vol. 36 (4), 1969, pp. 785–803) that one-,… read more here.
Keywords: three dimensional; flow; internal gravity; wave induced ... See more keywords
Stability of internal gravity wave modes: from triad resonance to broadband instability
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2023.265
Abstract: Abstract A theoretical study is made of the stability of propagating internal gravity wave modes along a horizontal stratified fluid layer bounded by rigid walls. The analysis is based on the Floquet eigenvalue problem for… read more here.
Keywords: scale; internal gravity; instability; gravity wave ... See more keywords
Two-dimensional simulations of internal gravity waves in a 5 M⊙ zero-age-main-sequence model
Sign Up to like & getrecommendations! Published in 2023 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stad1067
Abstract: Main-sequence intermediate-mass stars present a radiative envelope that supports internal gravity waves (IGWs). Excited at the boundary with the convective core, IGWs propagate towards the stellar surface and are suspected to impact physical processes such… read more here.
Keywords: two dimensional; internal gravity; sequence; gravity waves ... See more keywords
Onset of non-linear internal gravity waves in intermediate-mass stars
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty3086
Abstract: Internal gravity waves (IGW) propagate in the radiation zones of all stars. During propagation, their amplitudes are affected by two main features: radiative diffusion and density stratification. We have studied the implications of these two… read more here.
Keywords: gravity waves; mass; non linear; onset non ... See more keywords
Wave-Kinetic Dynamics of Forced-Dissipated Turbulent Internal Gravity Waves.
Sign Up to like & getrecommendations! Published in 2024 at "Physical review letters"
DOI: 10.1103/b82h-z21n
Abstract: Internal gravity waves are an essential feature of stratified media, such as oceans and atmospheres. To investigate their dynamics, we perform simulations of the forced-dissipated kinetic equation describing the evolution of the energy spectrum of… read more here.
Keywords: internal gravity; wave kinetic; forced dissipated; gravity waves ... See more keywords
Modulational instability and collapse of internal gravity waves in the atmosphere.
Sign Up to like & getrecommendations! Published in 2024 at "Physical review. E"
DOI: 10.1103/physreve.110.024216
Abstract: Nonlinear two-dimensional (IGWs) in the atmospheres of the Earth and the Sun are studied. The resulting two-dimensional nonlinear equation has the form of a generalized nonlinear Schrödinger equation with nonlocal nonlinearity, that is, when the nonlinear response… read more here.
Keywords: internal gravity; instability collapse; collapse; modulational instability ... See more keywords
Analyzing Constellation Performance for the Radio Occultation Tomography of Internal Gravity Waves
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"
DOI: 10.1109/jstars.2021.3080984
Abstract: Radio occultation (RO) is a powerful tool for remotely sensing the atmosphere, producing globally distributed soundings with both high vertical resolution and high temperature retrieval accuracy, especially in the stratosphere. The spatial distribution of the… read more here.
Keywords: quality; performance; constellation; occultation ... See more keywords
Numerical Evaluation of Energy Transfers in Internal Gravity Wave Spectra of the Ocean
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Physical Oceanography"
DOI: 10.1175/jpo-d-18-0075.1
Abstract: Spectral energy transfers by internal gravity wave–wave interactions for given empirical energy spectra are evaluated numerically from the kinetic equation that is derived from the assumption of weak interactions. Wave spectrum parameters, such as bandwidth,… read more here.
Keywords: transfers internal; energy transfers; gravity wave; internal gravity ... See more keywords
Evolution of internal gravity waves in a meso-scale eddy simulated using a novel model
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Physical Oceanography"
DOI: 10.1175/jpo-d-23-0095.1
Abstract: We investigate the effect of wave-eddy interaction and dissipation of internal gravity waves propagating in a coherent meso-scale eddy simulated using a novel numerical model called the Internal Wave Energy Model based on the six-dimensional… read more here.
Keywords: internal gravity; model; gravity waves; wave energy ... See more keywords