Figure 1From: Reaction of electric and meteorological states of the near-ground atmosphere during a geomagnetic storm on 5 April 2010One-minute averaged data for the geophysical field measurements. Development of the geomagnetic storm (dashed line shows the beginning) on 5 to 6 April 2010 and measurements of the (а) magnetic field H-component, (b) potential gradient, and (c) air electroconductivity caused by negative (1) and positive (2) ions.Back to article page