Digital Commons @ Trinity

Title

Solar Wind-Magnetosphere Coupling During an Isolated Substorm Event: A Multispacecraft ISTP Study

Authors

T I. Pulkkinen
D N. Baker
Niescja E. Turner, Trinity UniversityFollow
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

Document Type

Article

Publication Date

4-15-1997

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.

Identifier

10.1029/97GL00816

Publisher

Wiley-Blackwell

Repository Citation

Pulkkinen, T.I., Baker, D.N., Turner, N.E., Singer, H.J., Frank, L.A., Sigwarth, J.B., Scudder, J., ... & Slavin, J.A. (1997). Solar wind-magnetosphere coupling during an isolated substorm event: A multispacecraft ISTP study. Geophysical Research Letters, 24(8), 983-986. doi: 10.1029/97GL00816

Publication Information

Geophysical Research Letters