The 2015 Summer Solstice Storm: one of the major geomagnetic storms of solar cycle 24 observed at ground level

C. R. A. Augusto, C. E. Navia, M. N. de Oliveira +8

We report on the 22-23 June 2015 geomagnetic storm. There has been a shortage of intense geomagnetic storms during the current solar cycle 24 in relation to the previous cycle. Thi…