Quasi-periodic frequency dependence of Es- and E-layer echo amplitudes caused by mode coupling

Details Quasi-periodic frequency dependence of Es- and E-layer echo amplitudes caused by mode coupling Quasi-periodic frequency dependence of Es- and E-layer echo amplitudes caused by mode coupling

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jatp...43.1285j&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, vol. 43, Dec. 1981, p. 1285-1288.

Computer Science

Sound

3

Coupled Modes, E Region, Frequency Response, Ionospheric Sounding, Periodic Variations, Radio Echoes, Amplitudes, Atmospheric Models, Ionosondes, Ionospheric Electron Density, Sporadic E Layer

Scientific paper

Quasi-periodic variations of the ordinary Es- and E-layer echo amplitudes as a function of frequency have been observed in the ionospheric soundings carried out at the Sodankyla Geophysical Observatory. The variations are explained in terms of interference resulting from mode coupling in steep electron density gradients at the bottomside of the layer. A method is presented by which gradients of the order of 10 to the 10th to 10 to the 11th/cu m-km can be determined from the observed interference patterns.

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