Excitation of gravity waves by ocean surface wave packets: Upward propagation and reconstruction of the thermospheric gravity wave field

In this paper, we derive the atmospheric gravity waves (GWs) and acoustic waves excited by an ocean surface wave packet with frequency ωF and duration χ in an f plane, isothermal, windless, and inviscid atmosphere. This packet is modeled as a localized vertical body force with Gaussian depth σz. The...

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Bibliographic Details
Published in:Journal of geophysical research. Space physics 2015-11, Vol.120 (11), p.9748-9780
Main Authors: Vadas, Sharon L., Makela, Jonathan J., Nicolls, Michael J., Milliff, Ralph F.
Format: Article
Language:English
Subjects:
Acoustic waves
Atmospheric gravity waves
Atmospheric pressure
Computer simulation
Continuums
Excitation
Excitation spectra
Geodetics
Gravitational waves
Gravity
Gravity waves
Inertia
Meteorology
Momentum flux
Ocean surface
ocean surface wave
Ocean waves
Oceans
Phase velocity
Propagation
ray tracing
Surface waves
Thermosphere
tsunami
Vertical forces
Wave dispersion
Wave packets
Wave propagation
Wavelengths
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Summary:In this paper, we derive the atmospheric gravity waves (GWs) and acoustic waves excited by an ocean surface wave packet with frequency ωF and duration χ in an f plane, isothermal, windless, and inviscid atmosphere. This packet is modeled as a localized vertical body force with Gaussian depth σz. The excited GW spectrum has discrete intrinsic frequencies (ωIr) at ωF and ωF±2π/χ (“sum” and “difference”) and has a “continuum” of frequencies for ωIr
ISSN:2169-9380
2169-9402
DOI:10.1002/2015JA021430