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Jicamarca
Eastward E field
(Upward drift)
Downward E field
(Eastward drift)
3.0
2.0
1.0
0
50
D
Months
0
2
1.0
22.0
2
50
50
1.0
J
Months
0
0
2
1.0
22.0
2
50
50
1.0
0
E
Months
0
2
1.0
250
2
2.0
23.0
0
3
6 9 1215182124
0
3
6 9 1215182124
Magnetic local time (hours)
(a)
Arecibo
Eastward E field
(Poleward drift)
Equatorward E field
(Eastward drift)
4.0
2.0
50
D
Months
0
0
250
2
2.0
2.0
50
J
Months
0
0
250
2
2.0
2.0
50
E
Months
0
0
250
22.0
24.0
0
3
6
9 12 15 18 21 24
0
3
6
9 12 15 18 21 24
Magnetic local time (hours)
(b)
Figure 5.8
Seasonally averaged quiet-day drifts and electric fields (points with error
bars) and model drifts (solid lines) perpendicular to the geomagnetic field at 300 km for
(a) Jicamarca, (b) Arecibo.
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