LOGIN TO YOUR ACCOUNT

Username
Password
Remember Me
Or use your Academic/Social account:

CREATE AN ACCOUNT

Or use your Academic/Social account:

Congratulations!

You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.

Important!

Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message

CREATE AN ACCOUNT

Name:
Username:
Password:
Verify Password:
E-mail:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Liu, C. H.; Yeh, K. C. (2011)
Publisher: Co-Action Publishing
Journal: Tellus A
Languages: English
Types: Article
Subjects:
The excitation of acoustic-gravity waves in an isothermal atmosphere is considered in this paper. It is shown that the excitation due to mass production, momentum production and heat production can be discussed by examining the same differential equation. The sources are assumed to be extended and vary both in time and in space. Asymptotic methods are used to obtain analytic expressions for the radiation field for all times, from the arrival of precursors to any time thereafter. It is found that the transient response results from contributions from one, two or all three modes depending on the times from the arrival of precursors. The three modes are the high frequency acoustic mode, the intermediate frequency buoyancy mode and the low frequency gravity mode. Additional features of the transient behavior depend on the temporal as well as spatial variation of the sources. An example is given for which numerical computations are made. Possible applications of the results to geophysical problems are duscussed and certain extensions of the results are proposed.DOI: 10.1111/j.2153-3490.1971.tb00558.x
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • Baker, D. M. & Davies, K. 1969. F2-region acoustic waves from severe weather. J. Atmos. Terr. Phys. 31, 1345-1352.
    • Bleistein, Norman, 1967. Uniform asymptotic expansions of integrals with many nearby stationary points and algebraic singularities. J. Math. and Meeh. 17, 533-560.
    • Chimonas, G. & Hines, C. O. 1970. Atmospheric gravity waves induced by a solar eclipse. J. Geophys. Res. 75, 875.
    • Chimonas, G. & Hines, C. O. 1970. Atmospheric gravity waves launched by auroral currents. Planet. Space Sci. 18, 565-582.
    • Cole, J. D. & Greifinger, C. 1969. Acoustic-gravity waves from an energy source at the ground in an isothermal atmosphere. J. Geophys. Res. 74, 3693-3703.
    • Davies, K. & Baker, D. M. 1965. Ionospheric effects observed around the time of the Alaskan earthquake of March 28, 1964. J. Geophys. Res. 70, 2251-2253.
    • Davies, M. J. & da Rosa, A. V. 1969. Traveling ionospheric disturbances originating in the auroral oval during polar substorms. J. Geophys. Res. 74, 5721-5735.
    • Dieminger, W. & Hohl, H. 1962. Effects of nuclear explosions on the ionosphere, Nature 193, 953-964.
    • Dickinson, R. E. 1969. Propagators of atmospheric motions 1 and 2. Rev. Geophys. 7, 483-538.
    • Donn, W. L. & Shaw, D. M. 1967. Exploring the atmosphere with nuclear explosions. Rev. Geophys. 5,53-82.
    • Felsen, L. B. 1969. Transients in dispersive media. IEEE Trans. on Antenna and Propagation AP17, 191-200.
    • Georges, T. M; 1969. HF Doppler studies of traveling ionospheric disturbances. J. Atmos. Terr. Phys. 30, 735-746.
    • Hines, C. O. 1968. A possible source of waves in noctilucent clouds. J. Atmos. Sci. 25, 937-942.
    • Hines, C. O. 1960. Internal atmospheric gravity waves at ionospheric heights. Gan J. Phys. 38, 1441-1481.
    • Jones, W. L. 1970. A theory for quasi-periodic oscillations observed in the ionosphere. J. Atmos. Terr. Phys. 32, 1555-1566.
    • Kato, S. 1967. The response of an unbounded atmosphere to point disturbances, 2, Impulsive disturbances. Astrophys. J. 144, 326-336.
    • Leonard, R. S. & Barnes, R. A., Jr, 1965. Observation of ionospheric disturbances following the Alaskan earthquake. J. Geophys. Res. 70, 1250­ 1253.
    • Lighthill, M. J. 1967. On waves generated in dispersive systems by traveling forcing effects, with applications to the dynamics of rotating fluids. J. Fluid Mech. 27, 725-752.
    • Lighthill, M. J. 1960. Studies on magneto-hydrodynamic waves and other anisotropic wave motions. Phil. Trans. Roy. Soc. (London), ser. A., 252, 397-430.
    • Mowbray, D. E. & Rarity, B. 1967. A theoretical and experimental investigation of the phase configuration of internal waves of small amplitude in a density stratified liquid. J. Fluid Meek, 28,1-16.
    • Obayashi, T. 1962. Widespread ionospheric disturbances due to nuclear explosions during October 1961. Rept. Ionosphere Space Res., Japan, 16, 334-340.
    • Pierce, A. D. 1963. Propagation of acoustic-gravity waves from a small source above the ground in an isothermal atmosphere. J. AcoU8tical Soc. Am. 35, 1798-1807.
    • Pierce, A. D. 1968. Theoretical source models for the generation of acoustic-gravity waves by nuclear explosions. Symposium proceedings, Acousticgravity waves in the atmosphere. T. M. Georges. (Ed.), Supt. of Documents. U.S. Govt. Printing Office, Washington, D.C., 9-24.
    • Row, R. V. 1967. Acoustic-gravity waves in the upper atmosphere due to a nuclear detonation and an earthquake. J. Geopkya. Bell. 12, 1599­ 1610.
    • Wickersham, A. F. 1966. Identification of acousticgravity wave modes from ionospheric range-time observations. J. Geopkya. Bell. 71, 4551-4555.
    • Wilson, C. R. 1969. Infrasonic waves from moving auroral electrojets. Planetary and Space Sci. 17, 1107-1120.
    • Yuen, P. C., Weaver, P. F., Suzuka R. K. & Furumoto, A. S. 1969. Continuous, traveling coupling between seismic waves and the ionosphere evident in May, 1968 Japan earthquake data. J. Geopkya. Bell. 74,2256-2264.
  • No related research data.
  • Discovered through pilot similarity algorithms. Send us your feedback.

Share - Bookmark

Cite this article

Collected from