Geoscience Reference
In-Depth Information
10
6
1
×
1
×
10
5
1
×
10
4
n
+
n
-
.
1
×
10
3
n
e
100
cm
-
3
10
1
0
50
100
150
h, km
Fig. 5.9
Daytime distribution of concentration of ions and electrons on altitude
a
b
n
e
,
cm
-3
n
e
,
cm
-3
10
6
1
×
F
2
10
5
1
×
10
6
day
F
1
1
×
10
4
E
10
5
F
1
×
10
3
night
E
10
4
100
D
10
3
10
10
2
1
0
50
100
150
100
300
500
700
900
h, km
h, km
Fig. 5.10
Distribution of electronic concentration in the afternoon and at night. (
a
) Calculation
result; (
b
) data of measurements
(Ivanov-Kholodnyi
1994
). The satisfactory agreement for altitudes up to 150 km
(layer
E
and lower) certifies applicability of use of the elementary model for further
analysis.
Based on the obtained distributions of ion and electron concentrations, it is not
difficult to calculate the appropriate conductivity with the account of magnetic field
influence:
