Mathematics – Logic
Scientific paper
May 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agusmsa22a..02f&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SA22A-02
Mathematics
Logic
2411 Electric Fields (2712), 2415 Equatorial Ionosphere, 2435 Ionospheric Disturbances
Scientific paper
Ionospheric electric fields have been measured with the Jicamarca incoherent scatter radar since the late 1960's. However, these observations very rarely covered periods longer than a few days. We present vertical plasma drift measurements obtained during September 12-22, 2005 to study the variability of the equatorial zonal electric fields. During this period, which covered mostly the recovery phase of two moderate geomagnetic storms, the equatorial electric fields showed large prompt penetration and disturbance dynamo effects and quiet time variability. We compare these observations with climatological quiet time and disturbance electric field patterns and discuss their relationship to the interplanetary electric field and high latitude disturbance parameters. We also examine the effects of the perturbation vertical drifts on the generation of equatorial and plasma depletions.
Chau J. J.
Fejer Bela G.
Jensen Jerry W.
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