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Article
The dependence on zenith angle of the strength of 3-meter equatorial electrojet irregularities
Geophysical Research Letters (1980)
  • H. M. Ierkic
  • Bela G. Fejer, Utah State University
  • D. T. Farley
Abstract
Radar measurements in Peru were used to deduce the zenith angle dependence of the scattering cross section of plasma irregularities generated by instabilities in the equatorial electrojet. The irregularities probed by the 50 MHz Jicamarca radar had a wavelength of 3m. The cross section for the type 2 irregularities was isotropic in the plane perpendicular to the magnetic field, while the cross section for the stronger type 1 irregularities varied with zenith angle at a rate of approximately 0.3 dB/degree; the horizontally traveling waves were more than 100 times stronger than those traveling vertically.
Keywords
  • dependence,
  • zenith,
  • angle,
  • strenght,
  • equator,
  • electrojet,
  • irregularity
Disciplines
Publication Date
December 7, 1980
Publisher Statement
Copyright 1980 by the American Geophysical Union. DOI:10.1029/GL007i007p00497
Citation Information
Ierkic, H. M., B. G. Fejer, and D. T. Farley, The dependence on zenith angle of the strength of 3- meter equatorial electrojet irregularities, Geophys. Res. Letts., 7, 497, 1980.