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Is the geoeffectiveness of the 6 January 1997 CME predictable from solar observations?
Author(s) -
Zhao X. P.,
Hoeksema J. T.
Publication year - 1997
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/97gl03000
Subject(s) - coronal mass ejection , magnetic cloud , solar wind , protein filament , physics , geology , coronal cloud , geophysics , astrophysics , magnetic field , materials science , quantum mechanics , composite material
We present a prediction scheme for specifying the duration and maximum strength of the southward IMF within a magnetic cloud from observations of the disappearing filament associated with the coronal mass ejection and the photospheric magnetic field made near the filament disappearing. Using this scheme we were able to predict that the Earth directed 6 January 1997 coronal mass ejection would be geoeffective. We expected that the southward IMF interval would have a maximum strength of −13±5 nT and a duration of 14±5 hours. This compares favorably with the WIND observations of −15 nT and 13 hours.