Storm-substorm coupling during 16 hours of Dst steadily at-150 nT

TI Pulkkinen, NY Ganushkina, E Donovan, H. Li, GD Reeves, CT Russell, HJ Singer, JA Slavin

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

Abstract

We examine storm-time solar wind-magnetosphere-ionosphere coupling during October 21-22, 2001. This event showed atypically long-lasting, steady depression of the Dst index driven by both the solar wind and the magnetotail dynamics. It is demonstrated that the solar wind pressure plays a role in the magnetospheric energy budget. It is also shown that the magnetotail response to solar wind driving depends on the tail configuration and its history, which then affects the inner magnetosphere observations by changing the tail current contribution to Dst. It is concluded that the effects of solar wind driving to the inner magnetosphere dynamics may vary depending on the tail configuration, which limits our capability to categorize storm events using indices only.

Original languageEnglish
Title of host publicationInner Magnetosphere: Physics and Modeling
EditorsTI Pulkkinen, NA Tsyganenko, RHW Friedel
PublisherAMERICAN GEOPHYSICAL UNION
Pages155-162
Number of pages8
ISBN (Print)*************
DOIs
Publication statusPublished - 2005
MoE publication typeA4 Article in a conference publication
EventChapman Conference on Physics and Modeling of the Inner Magnetosphere - Helsinki, Finland
Duration: 25 Aug 200329 Aug 2003

Publication series

NameGEOPHYSICAL MONOGRAPH SERIES
PublisherAMER GEOPHYSICAL UNION
Volume155
ISSN (Print)0065-8448

Conference

ConferenceChapman Conference on Physics and Modeling of the Inner Magnetosphere
CountryFinland
CityHelsinki
Period25/08/200329/08/2003

Keywords

  • SOLAR-WIND
  • MAGNETOPAUSE
  • INJECTION
  • AE

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