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Mjølhus 1985
Mjølhus, E. (1985). Anomalous absorption and reflection in ionospheric radio modification experiments. Journal of Geophysical Research 90: doi: 10.1029/JA090iA05p04269. issn: 0148-0227.

The anomalous absorption of an ordinary polarized radio wave due to magnetic field aligned short-scale striations is studied. By the method of averaging, a correction term to the cold plasma dielectric tensor can be derived. The correction term behaves singularly at the upper hybrid level, inducing new cutoff and resonance. A situation analogous to the Budden tunneling problem arises. Thus the anomalous absorption is necessarily accompanied by partial reflection at the upper hybrid level. A consequence is that the absorption coefficient has a maximum at a certain striation intensity, with reflection dominating at higher intensities. This is expected to be important for the saturation of the process generating the striations.

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Journal of Geophysical Research
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