Discrete events

2) Sprite associated burst

The horizontal magnetic field components Bx and By at Silberborn (52 N, 10 E), Germany exhibit a discrete event at the occurence of a sprite associated positive ground-to-cloud lightning discharge (July 15th, 6:10:22.387 UT) in the midwesetern United States (41 N, 101 W) at 0.00 seconds. Both components oscillate at 8 Hz, hence denoted Earth-ionosphere cavity resonances.

qburst