Spectral dependence of the absorption of cosmic radio noise in the high-latitude ionosphere
Abstract
Riometer-absorption measurements performed at frequencies of 9-40 MHz at the Loparskoi and Tikski high-latitude stations are analyzed. It is shown that, in certain radio-frequency intervals, the absorption spectrum is steeper than that predicted by the theory based on the consideration of electron pair collisions. This result is interpreted as due to the additional absorption of cosmic radio noise by plasma turbulence.
- Publication:
-
Geomagnetism and Aeronomy
- Pub Date:
- October 1985
- Bibcode:
- 1985Ge&Ae..25..784G
- Keywords:
-
- Absorption Spectra;
- Cosmic Noise;
- Ionospheric Noise;
- Polar Regions;
- Electron Scattering;
- Plasma Turbulence;
- Riometers