Electromagnetic Effects Resulted from Explosions - Ultra and Extremely Low Frequency Electromagnetic Fields - page 423

6.72 km

750 m

V

D

V

750 m

V

30 m

Fig. 11.1 A schematic plot of the equipment arrangement used during Hardtack II series of
nuclear testing. The detonation hypocenter is marked by D. Adapted from Zablocki ( 1966 )

a

E j , µV/m

1

t , s

0,2

-1

b

E r , µV/m

0,2

t , s

-1

c

E z , µV/m

0,2

t , s

-1

Fig. 11.2 A schematic plot of ( a ) tangential, ( b ) radial, and ( c ) vertical components of electric
field variations measured at the proving ground in Nevada in 1958 during one of five underground
explosions of the Hardtek series. The measurements were performed at 6.72 km distance east of
explosion point and magnetic meridian. Adapted from Zablocki ( 1966 )