Abstract
Using data of satellite and ground-based cosmic ray (CR) observations at the worldwide network of neutron monitors, Forbush effects (FE) in November 2012 have been studied using the spectrographic global survey (SGS) method. The SGS method allows investigating variations in the rigidity spectrum, anisotropy, and changes in the geomagnetic cutoff rigidity during every hour of observations. Data of ground-based measurements on the worldwide network of neutron monitors (41 stations) averaged over 1-hour intervals, and data from the GOES-15 satellite were used for the analysis. Relative changes in CR intensity with R = 4 GV in the Geocentric Solar Ecliptic coordinate system for different time points of the period studied are presented.
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