ionospheric disturbance

A temporal variation in electron concentration in the ionosphere that is caused by solar activity and that makes the heights of the ionosphere layers go beyond the normal limits for a location, date, and time of day.

Related terms:

• sudden ionospheric disturbance
• ionospheric storm
• baroclinic disturbance
• ionospheric D scatter meteor burst
• atmospheric disturbance
• local magnetic disturbance
• disturbance
• Palisade disturbance
• tropical disturbance
• wave disturbance