Results 261 to 270 of about 1,659,712 (297)

Internal gravity waves in the atmosphere

Archiv für Meteorologie, Geophysik und Bioklimatologie Serie A, 1974
One of the shortcomings of at least those lee-wave theories which are mathematically tractable with relative ease, is that they do not satisfy the perturbation energy equation. In this report we started from a simplified energy equation and by parameterizing certain terms using plausible assumptions, we arrived at a solution of the primitive equations ...
Elmar R. Reiter, Bernhard Haurwitz
openaire   +1 more source

Gravity waves in a realistic atmosphere

Journal of Geophysical Research, 1966
Internal atmospheric gravity waves in isothermal medium, solving hydrodynamic equations, determining wave propagation in realistic atmosphere for range of wave parameters, wind amplitude, reflected energy ...
J. E. Midgley, H. B. Liemohn
openaire   +1 more source

Climatology of Gravity Waves in the Middle Atmosphere

Journal of Atmospheric and Terrestrial Physics, 1984
Abstract An attempt is made at the statistical analysis of small-scale disturbances in the stratosphere and mesosphere with the aid of meteorological rocket observations at many stations from 77°N to 8°S for several years. By applying a high-pass filter to daily rocket data in the height range 20–65 km, wind and temperature fluctuations with ...
openaire   +1 more source

The sources of atmospheric gravity waves

Contemporary Physics, 1979
Abstract The gravity wave theory has been very successful in the interpretation of various upper atmospheric phenomena. This article offers a review of the present state of knowledge about the various sources of atmospheric gravity waves, particularly those which give rise to different types of travelling ionospheric disturbance.
openaire   +1 more source

The reflection and ducting of atmospheric acoustic-gravity waves

Canadian Journal of Physics, 1965
A simple form is derived for the differential equations governing the propagation of acoustic–gravity waves in an atmosphere whose temperature and horizontal wind velocity vary in an arbitrary manner with height. The condition for wave reflection is discussed in some detail, and the W.K.B. approximate solutions are derived and examined.
M. L. V. Pitteway, C. O. Hines
openaire   +1 more source

Atmospheric Gravity Waves and Aircraft Turbulence Encounters

Journal of the Atmospheric Sciences, 1986
Abstract We describe aircraft turbulence-atmospheric gravity wave events which occurred during a 2-day period over the Continental Divide. The waves are observed by two microbarograph networks an each side of the divide and last for several hours at a time.
Bedard A. J., CANAVERO, Flavio, Einaudi F.   +2 more
openaire   +2 more sources

Gravity Waves in Titan's Atmosphere

Icarus, 1994
Scintillations (high frequency variations) observed in the radio signal during the occultation of Voyager 1 by Titan (Hinson and Tyler, 1983) provide information concerning neutral atmospheric density fluctuations on scales on hundreds of meters to a few kilometers.
openaire   +1 more source

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
openaire   +1 more source

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 ...
openaire   +1 more source

Eclipse induced atmospheric gravity waves

Journal of Atmospheric and Terrestrial Physics, 1975
Abstract A null result is reported for eclipse induced atmospheric gravity waves along the centre line of the total solar eclipse of 30 June 1973. This conflicts with the non-null result reported by others for the total solar eclipse of 7 March 1970. A means of reconciliation is suggested.
Barrie W. Jones, R.S. Bogart
openaire   +1 more source