Table 4 Regression equations for geomagnetic aa-index regressed on SAT and Rainfall in Nigeria and Cote D’Ivoire during solar cycles 22–24.
S/N | Climate station | Regression equation | Coefficient of determination | Influence (%) | Average influence (%) |
|---|---|---|---|---|---|
PHC | SAT = − 0.0038(aa-index) + 27.27 | R2 = 0.0003 | 0.03 | 0.145 | |
ABJ | SAT = 0.0078(aa-index) + 26.453 | R2 = 0.0026 | 0.26 | ||
PHC | Rainfall = − 0.347(aa-index) + 101.52 | R2 = 0.0012 | 0.12 | 0.125 | |
ABJ | Rainfall = − 0.3073(aa-index) + 118.73 | R2 = 0.0013 | 0.13 |
