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1192<br />
Victoria<br />
dH/dt nT/min (Obs)<br />
dH/dt nT/min (Obs)<br />
dH/dt nT/min (Obs)<br />
AE nT(Obs)<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
0<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
0<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
0<br />
4500<br />
4000<br />
3500<br />
3000<br />
2500<br />
2000<br />
1500<br />
1000<br />
500<br />
0<br />
Equation 9<br />
Canadian Journal of Pure and Applied Sciences<br />
r = 0.966<br />
R 2 = 0.933<br />
0 10 20 30 40 50 60 70 80 90 100<br />
dH/dt nT/min (Pred)<br />
Equation 10<br />
r = 0.958<br />
R 2 = 0.917<br />
0 10 20 30 40 50 60 70 80 90 100<br />
dH/dt nT/min (pred)<br />
Equation 11<br />
r = 0.958<br />
R 2 = 0.917<br />
0 10 20 30 40 50 60 70 80 90 100<br />
dH/dt nT/min (Pred)<br />
Equation 12<br />
r =0.909<br />
R 2 = 0.826<br />
0 500 1000 1500 2000 2500 3000 3500 4000 4500<br />
AE nT (Pred)<br />
Dst nT(Obs)<br />
450<br />
400<br />
350<br />
300<br />
250<br />
200<br />
150<br />
100<br />
50<br />
0<br />
Equation 13<br />
r= 0.950<br />
R 2 = 0.9028<br />
0 50 100 150 200<br />
Dst nT (Pred)<br />
250 300 350 400<br />
Fig. 4. Comparison between observed and predicted<br />
values of the correlation coefficient at Victoria.<br />
Figure 5 shows the comparison between observed and<br />
predicted values of the correlation coefficient at St John.<br />
Equation (14/ Table 2c) shows a correlation coefficient of<br />
0.988 that exists between time derivatives of the<br />
horizontal geomagnetic field, north and east components<br />
of the geoelectric field, auroral electrojet and disturbance<br />
storm time. The coefficient of determination of 0.977<br />
which implies 97.7% of time derivatives of the horizontal<br />
geomagnetic field can be accounted for by using the<br />
auroral electrojet index, disturbance storm time, and the<br />
north and east components of the geoelectric field.<br />
dH/dt nT/min (Obs)<br />
dH/dt nT/min (Obs)<br />
120<br />
100<br />
80<br />
60<br />
40<br />
20<br />
Equation 14<br />
r = 0.988<br />
R 2 = 0.977<br />
0<br />
0 20 40 60<br />
dH/dt nT/min (Pred)<br />
80 100 120<br />
120<br />
100<br />
80<br />
60<br />
40<br />
20<br />
Equation 15<br />
r = 0.988<br />
R 2 = 0.9761<br />
0<br />
0 20 40 60 80 100 120<br />
dH/dt nT/min (Pred)
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