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

Fig. 2

From: Localized field-aligned currents and 4-min TEC and ground magnetic oscillations during the 2015 eruption of Chile’s Calbuco volcano

Fig. 2

Magnetic ripples observed by SW-B at LT18 on April 22. Green lines, fluctuating in the direction of longitude centering SW-B orbit, indicate east–west component of the magnetic fluctuations. Red circles, a red dotted line, upper triangle and cross mark indicate objective magnetic fluctuations above the volcano and its conjugate point, the dip equator at an altitude of SW-B orbit, the location of the Calbuco volcano and its geomagnetic conjugate point, respectively. A blue upper triangle and cross mark indicate the traced point along the geomagnetic field line of force from the E-layer altitude (110 km) to the satellite altitude (512 km)

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