RECOMMENDATION ITU-R P.531-6 - Ionospheric propagation data and prediction methods required for the ...
ANNEX 1
1 Introduction
2 Background
3 Prime degradations due to background ionizations
    3.1 TEC
    3.2 Faraday rotation
    3.3 Group delay
    3.4 Dispersion
    3.5 TEC rate of change
4 Principal degradation due to irregularities
    4.1 Scintillation
    4.2 Geographic, equinoctial and solar dependence of scintillations
    4.3 Instantaneous statistics and spectrum behaviour
    4.4 Geometric consideration
    4.5 Cumulative statistics
    4.6 Simultaneous occurrence of ionospheric scintillation and rain fading
    4.7 Gigahertz scintillation model
5 Absorption
    5.1 Auroral absorption
    5.2 Polar cap absorption
6 Summary