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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

From: Occurrence characteristics and lowest speed limit of subauroral polarization stream (SAPS) observed by the SuperDARN Hokkaido East radar

Fig. 3

Relation between westward flow position and SYM-H. The vertical axis is MLAT and the horizontal axis is SYM-H. Three color curves show the empirical relationship between MLAT and Dst index obtained in a previous study (Wang et al. 2008). Each panel is for the 3-h MLT range. a 13–16 MLT, b 16–19 MLT, c 19–22 MLT, d 22–1 MLT, e 1–4 MLT, and f 4–7 MLT

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