Geoscience Reference
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20
ı
Fig. 4.19
Latitude-altitude variations of electron density along the geomagnetic meridians:
(
upper row
); 0
ı
(
middle row
);
C
20
ı
(
lower row
) calculated for 11 January 2010, 08 UT (03 LT).
At
left
, the quiet variations; at
right
, variations disturbed by the seismogenic electric field
