Results 271 to 280 of about 6,674 (308)

Atmospheric gravity wave instability?

Journal of Geophysical Research, 1967
Recently Hines [1965] in a review of atmospheric gravity wave theory invited the attention of wave theorists from other fields. This note is a direct result and is a by-product of other work in plasma waves. The intent of this note is only to point out an interesting feature of an equation given by Hines and treated somewhat on the same footing as a ...
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Internal atmospheric gravity waves at ionospheric heights

Canadian Journal of Physics, 1960
Irregularities and irregular motions in the upper atmosphere have been detected and studied by a variety of techniques during recent years, but their proper interpretation has yet to be established. It is shown here that many or most of the observational data may be interpreted on the basis of a single physical mechanism, namely, internal atmospheric ...
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Atmospheric gravity waves and ionospheric modelling

Advances in Space Research, 1990
Abstract Dynamical changes in the Earth's neutral atmosphere not directly related to solar-activity variations are probably the largest single contributor to day-to-day ionospheric fluctuations. To develop dynamic models which can reproduce typical time varying events it is necessary to know both the morphological structure of these variations and ...
Lj.R. Cander, P. Dominici, B. Zolesi
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Atmospheric Gravity Waves and Coastal Cyclones

Monthly Weather Review, 1979
Abstract Relations between the behavior of atmospheric gravity waves and the meteorological conditions during the approach of coastal cyclones at Palisades, New York (near New York City) are investigated. It is shown that the temperature and wind conditions favoring the development of the largest amplitude waves are most likely to occur when coastal ...
Stanley David Gedzelman, William L. Donn
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Dispersion and Spectra of Gravity Waves in the Atmosphere

Journal of the Atmospheric Sciences, 1974
Abstract This paper describes a method for obtaining the dispersion properties of atmospheric waves from ground-based measurements of pressure and wind fluctuations. Having found the wave dispersion, we can find the displacement spectra of the waves aloft, making only minimal assumptions about the atmospheric model and, without having very accurate ...
E. E. Gossard, W. B. Sweezy
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Nonlinear saturation of atmospheric gravity waves

Journal of Atmospheric and Terrestrial Physics, 1994
Abstract The governing equation for atmospheric gravity waves is deduced; it contains nonlinear terms of up to third-order perturbations. This general equation is used to derive the nonlinear equation for the amplitude of the velocity perturbation in a quasi-monochromatic wave, taking into account the secular terms.
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Observations of atmospheric gravity waves by radiointerferometry

Journal of Atmospheric and Terrestrial Physics, 1986
Abstract Gravity waves in the Earth ionosphere can be studied from ground-based radiointerferometric observations. The apparent position shift of a radiosource observed with a two-dimensional radio inter-ferometer provides directly the two components of the horizontal gradient of the oblique electronic content along the line of sight.
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‘Gravity waves in the atmosphere’

Quarterly Journal of the Royal Meteorological Society, 1955
Earl Gossard, Walter Munk
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Acoustic-gravity waves in a nonadiabatic atmosphere

Izvestiya, Atmospheric and Oceanic Physics, 2007
The effect of a real departure of the atmosphere from the adiabaticity condition on the generation and dissipation of acoustic-gravity waves (AGWs) throughout the entire height of the atmosphere up to the mesopause (≈90 km) is studied. The results of solving the derived dispersion equation can be helpful in the formation of boundary conditions during ...
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Gravity Waves in Free Atmosphere

2023
Shaowen Shou, Shenshen Li, Yixuan Shou, Xiuping Yao   +3 more
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