Results 11 to 20 of about 17,321 (259)

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

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

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

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

Gravity waves excited during a minor sudden stratospheric warming [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
An exceptionally deep upper-air sounding launched from Kiruna airport (67.82° N, 20.33° E) on 30 January 2016 stimulated the current investigation of internal gravity waves excited during a minor sudden stratospheric warming (SSW) in the
A. Dörnbrack   +10 more
doaj   +1 more source

CRITICAL GRAVITY WAVES

open access: yesThe Thirteenth Marcel Grossmann Meeting, 2015
11 pages. v2 References added.
Ayón-Beato, Eloy   +2 more
openaire   +2 more sources

Influence of the cloud-level neutral layer on the vertical propagation of topographically generated gravity waves on Venus

open access: yesEarth, Planets and Space, 2019
The reason for stationary gravity waves at Venus’ cloud top to appear mostly at low latitudes in the afternoon is not understood. Since a neutral layer exists in the lower part of the cloud layer, the waves should be affected by the neutral layer before ...
Takeru Yamada   +3 more
doaj   +1 more source

Gravity Wave Investigations over Comandante Ferraz Antarctic Station in 2017: General Characteristics, Wind Filtering and Case Study

open access: yesAtmosphere, 2020
This work presents the characteristics of gravity waves observed over Comandante Ferraz Antarctic Station (EACF: 62.1° S, 58.4° W). A total of 122 gravity waves were observed in 34 nights from March to October 2017, and their parameters were obtained by ...
Gabriel Augusto Giongo   +6 more
doaj   +1 more source

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