 | This article relies largely or entirely on a single source. (March 2024) |
The Index is a standard index used to measure ionospheric disturbances. It is defined as the ratio of the standard deviation of signal intensity to the average signal intensity.[1]
- ^ Basu, Santimay; Basu, Sunanda. Scintillation technique for probing Ionospheric irregularities. p. 128.