Table 3

Correlation coefficients between monthly SSN and monthly smooth magnetosonic Mach number, SWP beta, Alfven speed, energy densities at Earth’s bow-shock (magnetic, thermal, and kinetic), solar wind parameters (temperature, density, and velocity), ε, L_CF, and strength of different current systems (EEJ, |Dst|, AE,) are given below. We used data for SCs 22, 23, and 24 to get these correlations.

Parameter	Corr. coeff.
M	−0.92
β	−0.79
VA (m/s)	0.87
Um (J/m3)	0.82
Uth (J/m3)	0.47
Uke (J/m3)	0.27
Tp (°K)	0.39
N (/m3)	0.02
V2 (m2/s2)	0.10
ε (W)	0.85
LCF (RE km)	−0.06
EEJ (nT)	0.97
(nT)	0.67
AE (nT)	0.57