publication . Other literature type . Article . 2007

Equatorial ionospheric electric fields during the November 2004 magnetic storm

Bela G. Fejer; John W. Jensen; Takashi Kikuchi; M. A. Abdu; Jorge L. Chau;
Open Access
  • Published: 01 Oct 2007
  • Publisher: SelectedWorks
  • Country: United States
Abstract
[1] We use radar measurements from the Jicamarca Radio Observatory, magnetometer observations from the Pacific sector and ionosonde data from Brazil to study equatorial ionospheric electric fields during the November 2004 geomagnetic storm. Our data show very large eastward and westward daytime electrojet current perturbations with lifetimes of about an hour (indicative of undershielding and overshielding prompt penetration electric fields) in the Pacific equatorial region during the November 7 main phase of the storm, when the southward IMF, the solar wind and reconnection electric fields, and the polar cap potential drops had very large and nearly steady value...
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arXiv: Physics::Space PhysicsPhysics::Atmospheric and Oceanic PhysicsPhysics::GeophysicsAstrophysics::Solar and Stellar AstrophysicsAstrophysics::High Energy Astrophysical Phenomena
free text keywords: equator, ionosphere, electric, field, november, magnetic, storm, 2004, Physics, Earth-Surface Processes, Ecology, Earth and Planetary Sciences (miscellaneous), Space and Planetary Science, Palaeontology, Forestry, Aquatic Science, Atmospheric Science, Soil Science, Geochemistry and Petrology, Geophysics, Oceanography, Water Science and Technology, Atmospheric sciences, Geology, Equatorial electrojet, Jicamarca Radio Observatory, Geomagnetic storm, Electric field, Electrojet, Solar wind
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