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Modulation instability at the upper hybrid layer in high‐power radio wave ionospheric heating
Author(s) -
Keskinen M. J.,
Rodriguez P.
Publication year - 1998
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/97rs02970
Subject(s) - instability , ionosphere , amplitude , physics , earth's magnetic field , geophysics , lower hybrid oscillation , computational physics , f region , modulation (music) , radio wave , amplitude modulation , optics , frequency modulation , magnetic field , wave propagation , radio frequency , acoustics , mechanics , electromagnetic electron wave , telecommunications , quantum mechanics , computer science
A model of the evolution of finite amplitude upper hybrid waves generated at the upper hybrid resonance height during high‐power radio wave ionospheric heating is presented. We show that the threshold for modulation instability can be exceeded for upper hybrid wave amplitudes of the order of a few tens of millivolts per meter and will be excited for scale sizes, perpendicular to the geomagnetic field, of the order of a few tens of electron gyroradii.