Geoscience Reference
In-Depth Information
Frequency, Hz
3.10
18
10
18
3.10
17
10
17
3.10
16
10
16
3.10
15
10
15
3.10
14
10
14
3.10
13
5.10
6
3.10
6
2.10
6
10
6
6
4
6000 K
Black body
2
10
5
6
4
2
10
4
6
4
2
Sun
10
3
6
Maximum
Sun activity
4
2
10
2
6
4
Minimum
Sun activity
2
10
6
4
2
1
3 Å
30 Å
300 Å
3000 Å
3
MKM
30
10 mcm
1 Å
10 Å
100 Å
1000 Å
1 mcm
Wavelength
Fig. 5.7
Spectral density of radiation of the sun
Dependence of the ionization source by UV radiation on altitude is shown in
Fig.
5.8
.
It is known that a regular electric current proceeds through all altitudes (Imianitov
and Chubarina
1965
); at the surface of the Earth, the regular electric field is
1V/cm:
D
2
10
16
; Acm
2
:
I
reg
(5.9)
Necessary regular conductivity at the surface of the ground is supported by
cosmic rays. In the assumption of the high penetrating ability of space beams, the
source of ionization by space beams can be approximated by dependence:
