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Low- and mid-latitude ionospheric electric fields during the January 1984 GISMOS campaignThe electrical coupling between the high-, middle-, and low-latitude ionospheres during January 17-19, 1984 is examined, using interplanetary and high-latitude magnetic field data together with F region plasma drift measurements from the EISCAT, Sondre Stromfjord, Millstone Hill, Saint-Santin, Arecibo, and Jicamarca incoherent scatter radars. The penetration both the zonal and meridional electric field components of high-latitude origin into the low-latitude and the equatorial ionospheres are studied. The observations in the postmidnight sector are used to compare the longitudinal variations of the zonal perturbation electric field with predictions made from global convection models. The results show that the meridional electric field perturbations are considerably more attenuated with decreasing latitude than the zonal fluctuations. It is concluded that variations in the meridional electric field at low latitudes are largely due to dynamo effects.
Document ID
19900039395
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Fejer, B. G.
(Utah State University Logan, United States)
Kelley, M. C.
(Cornell University Ithaca, NY, United States)
Senior, C.
(Centre de Recherche en Physique de l'Environnement Terrestre et Planetaire Saint-Maur-des-Fosses, France)
De La Beaujardiere, O.
(SRI International Menlo Park, CA, United States)
Lepping, R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 14, 2013
Publication Date
March 1, 1990
Publication Information
Publication: Journal of Geophysical Research
Volume: 95
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
90A26450
Funding Number(s)
CONTRACT_GRANT: NSF ATM-86-16456
CONTRACT_GRANT: F49620-86-C-0109
CONTRACT_GRANT: NSF ATM-88-13837
Distribution Limits
Public
Copyright
Other

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