Interpretation of the phase velocity dispersion of observed F-region waves

Details Interpretation of the phase velocity dispersion of observed F-region waves Interpretation of the phase velocity dispersion of observed F-region waves

Nov 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974jatp...36.1995k&link_type=abstract

(International Association of Geomagnetism and Aeronomy, Symposium on Dynamics, Chemistry and Thermal Processes in the Ionospher

Computer Science

Sound

F Region, Gravity Waves, Ionospheric Disturbances, Phase Velocity, Sound Waves, Velocity Distribution, Atmospheric Attenuation, Atmospheric Models, Night Sky, Thermal Conductivity, Wave Attenuation

Scientific paper

An attempt is made to explain the observed dispersion of F-region waves by means of atmospheric acoustic-gravity waves, taking into account the effects of thermal conduction, viscosity, and ion drag. Acoustic-gravity waves of a given period then have an attenuation minimum at a certain horizontal phase velocity, and it is assumed that those waves having the lowest attenuation predominate. With this assumption, the dispersion of the horizontal phase velocity observed at night, and the dispersion of the vertical phase velocity can be explained. A similar interpretation of horizontal phase velocities observed near sunrise or sunset fails.

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