Solar wind-magnetosphere coupling during an isolated substorm event: A multispacecraft ISTP study

T. I. Pulkkinen, D. N. Baker, N. E. Turner, H. J. Singer, L. A. Frank, J. B. Sigwarth, J. Scudder, R. Anderson, S. Kokubun, R. Nakamura, T. Mukai, J. B. Blake, C. T. Russell, H. Kawano, F. Mozer, J. A. Slavin

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Multispacecraft data from the upstream solar wind, polar cusp, and inner magnetotail are used to show that the polar ionosphere responds within a few minutes to a southward IMF turning, whereas the inner tail signatures are visible within ten min from the southward turning. Comparison of two subsequent substorm onsets, one during southward and the other during northward IMF, demonstrates the dependence of the expansion phase characteristics on the external driving conditions. Both onsets are shown to have initiated in the midtail, with signatures in the inner tail and auroral oval following a few minutes later.

Original languageEnglish
Article number97GL00816
Pages (from-to)983-986
Number of pages4
JournalGeophysical Research Letters
Volume24
Issue number8
DOIs
Publication statusPublished - Jan 1 1997
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

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    Pulkkinen, T. I., Baker, D. N., Turner, N. E., Singer, H. J., Frank, L. A., Sigwarth, J. B., Scudder, J., Anderson, R., Kokubun, S., Nakamura, R., Mukai, T., Blake, J. B., Russell, C. T., Kawano, H., Mozer, F., & Slavin, J. A. (1997). Solar wind-magnetosphere coupling during an isolated substorm event: A multispacecraft ISTP study. Geophysical Research Letters, 24(8), 983-986. [97GL00816]. https://doi.org/10.1029/97GL00816