Variations - Electrons
Cyclic Modulation Due to the Solar Cycle ~ 2
- Highest Levels Are at Peak of Solar Maximum
- Lowest Levels Are at Lowest Point in Solar Minimum
Inner Zone - Fairly Stable
Outer Zone - Dynamic 102 ~ 106
- Solar Cycle Variations Are Masked
- Local Time Variations Due to Magnetic Field Distortion
- 27-Day Variation Due to Solar Rotation
- Magnetic Storms & Sub-Storms