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Long wavelength irregularities in the equatorial electrojetThe radar interferometer technique is used at Jicamarca to study in detail irregularities with wavelengths of a few kilometers generated in the unstable equatorial electrojet plasma during strong type 1 conditions. In-situ rocket observations of the same instability process are discussed in a companion paper. These large scale primary waves travel essentially horizontally and have large amplitudes. The vertical electron drift velocities driven by the horizontal wave electric fields reach or exceed the ion-acoustic velocity even though the horizontal phase velocity of the wave is considerably smaller. A straightforward extension to the long wavelength regime of the usual linear theory of the electrojet instability explains this and several other observed features of these dominant primary waves.
Document ID
19820051682
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Kudeki, E.
(Cornell Univ. Ithaca, NY, United States)
Farley, D. T.
(Cornell Univ. Ithaca, NY, United States)
Fejer, B. G.
(Cornell University Ithaca, NY, United States)
Date Acquired
August 10, 2013
Publication Date
June 1, 1982
Publication Information
Publication: Geophysical Research Letters
Volume: 9
Subject Category
Geophysics
Accession Number
82A35217
Funding Number(s)
CONTRACT_GRANT: NAGW-90
CONTRACT_GRANT: NSF ATM-80-22535
Distribution Limits
Public
Copyright
Other

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