Cosmic Ray Variations and Anisotropy Near Earth During The July 16, 2005 Forbush Decrease: Results From ANMODAP Center
During July 2005 intense solar activity resulted an intense Forbush effect that was followed by a sharp enhancement of cosmic rays with a duration of less than 24 hours. The ANMODAP Center determined that it was neither a ground level enhancement nor a geomagnetic disturbance.
Mavromichalaki, H.↗