Geoscience Reference
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2.0
Dec. 1981
August 1982
1.5
1.0
0.5
0.0
(a)
(b)
2.0
June 1983
Oct. 1983
1.5
1.0
0.5
0.0
(c)
(d)
40
Dec. 1981
August 1982
30
20
10
0
(e)
(f)
20
June 1983
Oct. 1983
15
10
5
0
20
22
00
02
04
06
20
22
00
02
04
06
(g)
(h)
Atlantic standard time (608W)
Figure 5.12
Five-day average values for different months of the height-integrated
F-region Pedersen conductivity and the ratio between the F- and E-region-integrated
Pedersen conductivities just past the peak in the solar cycle. (Reproduced with permis-
sion of R. Burnside.)
drift data is, of course, geomagnetic, so the Arecibo data have been displayed
in this manner. The seemingly remarkable result first reported by Behnke and
Harper (1973), an example of which is shown in Fig. 5.14, is the existence
of a strong anticorrelation between the components of the drift velocity in the
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