RUSSIAN JOURNAL OF EARTH SCIENCES, VOL. 17, ES2002, doi:10.2205/2017ES000597, 2017 ![]() Figure 6. World-wide distribution of magnetic disturbance magnitude on March 17, 2015 as characterized by global $\Phi$–$LT$ maps of the (upper panel) ionospheric E–W current (characterized by $|\Delta X|$ variations), and (bottom panel) magnetic variability $|dB/dt|$ for the time moment 1748 UT. Small black crosses denote the station location. Black and yellow diamonds denote the poleward and equatorward boundaries of the auroral oval, given by OVATION model. Copyright 2017 by the Geophysical Center RAS. Generated from LaTeX source by ELXpaper, v.1.5 software package. |