5. Conclusions
[20] Thus a two-layer region of additional ionization with the
maximum electron concentration of
2.7
103 cm-3 is detected during
moderate solar flares in the polar ionosphere at heights below 85 km.
Ionospheric effects of the X-ray solar flares were accompanied by an
intensification of the MF radio wave absorption, splashes of the
meter space radiation, and generation of infrasound waves with a
period of about 3 min and more. The effects of solar flares depend
on geophysical conditions in the ionosphere. They are manifested in
the most visual way at the absence of disturbances. It is shown that at
heights below 75 km the electron concentration is proportional to the
intensity of X-ray radiation, the fact indicating that there is a linear
recombination law and dust-like particles play a significant role. The
detected features in the electron concentration behavior during solar
X-ray flares need further experimental studies and theoretical
explanation.
Powered by TeXWeb (Win32, v.2.0).