摘要:The effects of a geomagnetic storm on 5 April 2010 on electric parameters of the atmospheric near-ground layer in Kamchatka have been investigated.Three processes over the course of the storm were identified.Air electroconductivity began to decrease 4 h before the storm, and this lasted for 20 h.The storm's sudden commencement caused potential gradient oscillations with amplitudes up to 300 V/m.During the stages of the storm, a significant increase in the atmosphere ion content unipolarity coefficient occurred.