Storm-Time Penetration Electric Fields and Their Effects
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TLDR
In this article, it was shown that when the magnetospheric convection is enhanced following a southward turning of the interplanetary magnetic field (IMF), the initial high-latitude electric field will penetrate to the equatorial latitudes.Abstract:
The ‘convection’ electric field, set up in the magnetosphere by the interaction of the solar wind plasma flowing around the Earth's magnetic field, projects along magnetic field lines to low altitudes where it drives the high-latitude ionospheric convection. During active times, ionospheric electric fields are thought to originate from two sources: a disturbed wind dynamo and electric fields that penetrate from high latitudes. In the latter, when the magnetospheric convection is enhanced following a southward turning of the interplanetary magnetic field (IMF), the initial high-latitude electric field will penetrate to the equatorial latitudes.read more
Citations
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Journal ArticleDOI
Review of the accomplishments of mid-latitude Super Dual Auroral Radar Network (SuperDARN) HF radars
Nozomu Nishitani,J. M. Ruohoniemi,Mark Lester,J. B. H. Baker,A. V. Koustov,Simon G. Shepherd,Gareth Chisham,Tomoaki Hori,Evan G. Thomas,Roman A. Makarevich,Aurélie Marchaudon,P. V. Ponomarenko,Jim Wild,Stephen E. Milan,William A. Bristow,John Devlin,Ethan S. Miller,R. A. Greenwald,Tadahiko Ogawa,Takashi Kikuchi +19 more
TL;DR: The Super Dual Auroral Radar Network (SuperDARN) is a network of highfrequency (HF) radars located in the high and mid-latitude regions of both hemispheres that is operated under international cooperation as mentioned in this paper.
Journal ArticleDOI
Response of the equatorial ionosphere at dusk to penetration electric fields during intense magnetic storms
Santimay Basu,Su. Basu,Frederick J. Rich,Keith M. Groves,E. MacKenzie,Clayton Coker,Yogeshwar Sahai,Paulo Roberto Fagundes,F. Becker-Guedes +8 more
TL;DR: In this article, the authors investigated the response of the equatorial ionosphere at dusk to the intense magnetic storms of 30 October 2003 and 20 November 2003, different aspects of which have been widely studied by the community.
Journal ArticleDOI
Penetration electric fields: Efficiency and characteristic time scale
TL;DR: In this paper, the authors presented a statistical result of the efficiency of IEF penetration to the dayside equatorial ionosphere; the efficiency is defined as the ratio of the change of the equatorial Ionospheric electric field to the change in the IEF.
Journal ArticleDOI
Global thermosphere‐ionosphere response to onset of 20 November 2003 magnetic storm
G. Crowley,Chris L. Hackert,R. R. Meier,D. J. Strickland,Larry J. Paxton,Xiaoqing Pi,Anthony J. Mannucci,Andrew B. Christensen,Daniel Morrison,Gary S. Bust,Raymond G. Roble,N. Curtis,G. P. Wene +12 more
TL;DR: In this article, the authors explore how the thermosphere-ionosphere system responded to the onset of the 20 November 2003 geomagnetic storm, using the NCAR TIMEGCM.
Journal ArticleDOI
Local time dependent response of postsunset ESF during geomagnetic storms
S. Tulasi Ram,P. V. S. Rama Rao,D. S. V. V. D. Prasad,K. Niranjan,S. Gopi Krishna,R. Sridharan,Sudha Ravindran +6 more
TL;DR: In this paper, the authors report the results of a multi-instrumental (ground-based and space-borne) and multistation study on the development/inhibition of postsunset ESF during five moderate to intense geomagnetic storms occurred during the low and descending phase of the solar activity period, 2004-2006.
References
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Journal ArticleDOI
Self‐consistent calculation of the motion of a sheet of ions in the magnetosphere
R. K. Jaggi,R. A. Wolf +1 more
TL;DR: In this paper, the effects of Birkeland currents from the inner edge of a sheet of ions that moves under the influence of the computed electric fields were investigated, and the results of the model calculations support the idea that convection electric fields bring low-energy ions in from the tail to form the storm time ring current.
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SAPS: A new categorization for sub‐auroral electric fields
John C. Foster,William J. Burke +1 more
TL;DR: The continued use of descriptive terms such as penetration electric fields, polarization jets, and sub-auroral ion drifts could lead to misunderstanding, especially when comparing the broad/narrow, persistent/transient regions of sub- auroral electric field and plasma flow.
Journal ArticleDOI
On the control of magnetospheric convection by the spatial distribution of ionospheric conductivities
Catherine A. Senior,Michel Blanc +1 more
TL;DR: In this article, a self-consistent semianalytical model of magnetospheric convection including the effect of the latitude and local time variations of ionospheric conductivities is presented.
Journal ArticleDOI
Long‐duration penetration of the interplanetary electric field to the low‐latitude ionosphere during the main phase of magnetic storms
TL;DR: In this paper, the authors present the observations of the dayside ionospheric electric field enhancements at middle and low latitudes in association with reorientations of the interplanetary magnetic field.
SAPS: A new categorization for sub-auroral electric fields
John C. Foster,William J. Burke +1 more
TL;DR: Sub-auroral electric fields play critical roles in energizing and transporting ring current ions, as well as convecting thermal plasma in the inner magnetosphere and in the mid- to low-latitude ionosphere as mentioned in this paper.