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The nature of electric field in E‐Region close to morning and evening reversals
Author(s) -
Prakash S.,
Muralikrisha P.
Publication year - 1976
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/gl003i008p00445
Subject(s) - evening , equatorial electrojet , morning , electrojet , electric field , radar , twilight , sunset , doppler radar , doppler effect , geology , atmospheric sciences , f region , ionosphere , meteorology , geophysics , geodesy , physics , optics , astronomy , magnetic field , earth's magnetic field , telecommunications , quantum mechanics , computer science
The nature of electrostatic field driving the equatorial electrojet was studied using a coherent backscatter radar at Thumba. The doppler spectra of radar echoes from ionization irregularities in the E‐region, during periods close to the morning and the evening electrojet reversals, show that the electric field, in general, is stronger during the pre‐reversal periods than during the post‐reversal periods. Similar results for the evening hours were reported earlier from the radar studies conducted at Jicamarca. This indicates that this effect is likely to be present at all the equatorial stations.