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Nonlinear theory of Type I irregularities in the equatorial electrojet
Author(s) -
Sudan R. N.
Publication year - 1983
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl010i010p00983
Subject(s) - physics , amplitude , phase velocity , electrojet , isotropy , dispersion relation , nonlinear system , doppler effect , equatorial electrojet , geophysics , computational physics , quantum electrodynamics , optics , magnetic field , quantum mechanics , earth's magnetic field
By taking into account the effect of wave electric fields on electron orbits, a nonlinear dispersion relation for Type I irregularities is obtained which predicts: (1) isotropy of the Doppler shift with elevation, (2) limiting phase velocity equal to ion acoustic speed, and (3) saturation amplitude which is maximum for horizontally propagating waves and decreases with elevation.