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Fig. 1
Frequency distributions of the four solar-wind parameters and their lognormal fits derived from the hourly OMNI data set. The histograms have bins of 0.5 nT, 10km s−1, 1 cm−3, and 10 000 K. The fits’ median and mean values are indicated as well. The insets show zoomed-in views of the high-value tails of the distributions.
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