Ring current enhancement due to substorm-associated inductive electric fields

T.I. Pulkkinen, NY Ganushkina, VF Bashkirov, DN Baker, JF Fennell, J Roeder, TA Fritz, M Grande, B Kellett, G Kettmann

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

This paper presents results of observational and modeling work on the dynamics in the inner magnetosphere during geomagnetic storms. Using statistics from POLAR/CAMMICE/MICS instrument it is shown that the ring current energy density is a complex function of the solar wind input and substorm activity. These results are examined using time-varying models for the magnetic and electric fields during storm periods. It is shown that (even strong) stationary convection electric field does not produce a sufficiently high-energy ring current. The same is true for a single electric field pulse representing an isolated substorm. Our preliminary results indicate that a series of substorms with inward transport and acceleration of particles by inductive electric fields are required for the production of an intense ring current.

Original languageEnglish
Title of host publicationPROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON SUBSTORMS
EditorsA Wilson
Pages451-454
Number of pages4
Publication statusPublished - 2000
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Substorms - St. Petersburg, Russian Federation
Duration: 16 May 200020 May 2000
Conference number: 5

Publication series

NameESA SPECIAL PUBLICATIONS
PublisherESA PUBLICATIONS DIVISION C/O ESTEC
Volume443
ISSN (Print)0379-6566

Conference

ConferenceInternational Conference on Substorms
Abbreviated titleICS
CountryRussian Federation
CitySt. Petersburg
Period16/05/200020/05/2000

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