Results 21 to 30 of about 9,353 (305)

A Model Sensitivity Study of Ocean Surface Wave Modulation Induced by Internal Waves

open access: yesEarth and Space Science, 2022
Nonlinear internal waves are an upper ocean phenomenon that drives horizontal surface current gradients, which in turn modulate ocean surface waves. Under certain conditions, this wave‐current interaction creates ocean surface roughness heterogeneity, in
Jie Wu   +4 more
doaj   +1 more source

Fluctuations of radio occultation signals in sounding the Earth's atmosphere [PDF]

open access: yesAtmospheric Measurement Techniques, 2018
We discuss the relationships that link the observed fluctuation spectra of the amplitude and phase of signals used for the radio occultation sounding of the Earth's atmosphere, with the spectra of atmospheric inhomogeneities.
V. Kan   +3 more
doaj   +1 more source

Spectra of Acoustic-Gravity Waves in the Atmosphere with a Quasi-Isothermal Upper Layer

open access: yesAtmosphere, 2021
In this paper, we study, in theoretical terms, the structure of the spectrum of acoustic-gravity waves (AGWs) in the nonisothermal atmosphere having asymptotically constant temperature at high altitudes.
Sergey P. Kshevetskii   +2 more
doaj   +1 more source

Effects of high-latitude atmospheric gravity wave disturbances on artificial HF radar backscatter [PDF]

open access: yes, 2006
International audienceObservations of HF radar backscatter from artificial field-aligned irregularities in an ionosphere perturbed by travelling disturbances due to atmospheric gravity waves are presented.
Tim K. Yeoman (7583066)   +14 more
core   +1 more source

To rate spread internal gravity waves

open access: yesНаука. Инновации. Технологии, 2022
Sometimes mistakenly assumed that gravity waves only have a frequency equal to Brunt - Vaisala. However, there is a wide range of wave frequencies are less than this value.
Ekaterina Gennadevna Nabrodova   +2 more
doaj  

The instability of internal gravity waves to localised disturbances [PDF]

open access: yesAnnales Geophysicae, 1995
The instability of an internal gravity wave due to nonlinear wave-wave interaction is studied theoretically and numerically. Three different aspects of this phenomenon are examined. 1.
J. Vanneste
doaj   +1 more source

Gravity wave propagation in the realistic atmosphere based on a three-dimensional transfer function model [PDF]

open access: yesAnnales Geophysicae, 2007
In order to study the filter effect of the background winds on the propagation of gravity waves, a three-dimensional transfer function model is developed on the basis of the complex dispersion relation of internal gravity waves in a stratified ...
L. Sun, W. Wan, F. Ding, T. Mao
doaj   +1 more source

COMPARISON OF WAVE ACTIVITY IN THE MESOPAUSE REGION AT MAIMAGA STATION WITH EOS MLS (AURA) TEMPERATURE DATA AND ACTIVITY OF PLANETARY WAVES AT TIKSI STATION [PDF]

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2019
The temperature data of the mesopause region obtained for the period 2013-2018 at the station Maimaga (63.04° N, 129.51° E) and for the period 2015-2018 at the station Tiksi (71.58° N, 128.77° E) was investigated.
V. I. Sivtseva   +4 more
doaj   +1 more source

Acoustic-gravity modons in the atmosphere [PDF]

open access: yesAnnales Geophysicae, 1995
It is shown that the equations governing low-frequency acoustic-gravity waves in a stable stratified atmosphere can have localized dipole-vortex solutions (modons).
L. Stenflo, Y. A. Stepanyants
doaj   +1 more source

A Brief Overview of Gravity Wave Retrieval Techniques From Observations

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Atmospheric gravity waves (GWs) are important in driving the middle and upper atmosphere dynamics on Earth. Here, we provide a brief review of the most common techniques of retrieving gravity wave activity from observations.
Md Nazmus Sakib, Erdal Yiğit
doaj   +1 more source

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