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An Investigation of the Time-Delay between Solar Events and Geomagnetic Disturbances Using a New Method of Superposed Epoch Analysis
1994
Journal of geomagnetism and geoelectricity
A new superposed epoch technique involving an eigen-analysis of the covariance matrix of a set of time series has been used to study the magnetic responses in the polar cap, auroral zone and subauroral zone to the occurrences of solar flares, central meridian passages of coronal holes and disappearing filaments on the Sun. This new technique is superior to the conventional technique of simple averaging in that the dominant common structure in the time series is more clearly identified and that
doi:10.5636/jgg.46.107
fatcat:snq7zhctsngpdllcypwdj3ezya