Abstract
A high time resolution study of the relationship between the solar wind-magnetosphere energy coupling function ϵ and the total energy dissipation rate U T of the magnetosphere is made using 5-min average values of solar wind data and of the geomagnetic indices AE and Dst. All the results are essentially the same as those obtained by the earlier studies which were based on the hourly average data set. Therefore, we confirm that the magnetosphere is primarily a driven system.
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