RUSSIAN JOURNAL OF EARTH SCIENCES, VOL. 20, ES1004, doi:10.2205/2019ES000699, 2020 ![]() Figure 1. Daily sunspot number, the solar $F10.7$ index and geomagnetic $Dst$ index in 1999–2019. The grey vertical lines mark March 2007, July 2007 and January 2008. Copyright 2020 by the Geophysical Center RAS. Generated from LaTeX source by ELXfinal, v.2.0 software package. |