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Earth, Planets and Space
Fig. 2 | Earth, Planets and Space

Fig. 2

From: Ground geomagnetic field and GIC response to March 17, 2015, storm

Fig. 2

The space weather parameters during the storm main phase 04–24 UT, March 17, 2015: the solar wind density Np and electric field Ey, SYM-H index, PCN/PCS indices, and AE index. Two bottom panels show the midnight (MLT = 0) and noon (MLT = 12) virtual magnetograms (X-component) of geomagnetic response for the Northern (blue line) and Southern (red line) hemispheres. Substorm activations are marked by numbers (1–6)

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