Satellite investigation of the spectral characteristics of irregularities
Abstract
The paper presents results of a spectral analysis of ionospheric electron density irregularities, the study being based on data acquired with the HF impedance probe aboard Cosmos 381. The analysis was carried out for 25 sessions (lasting 5, 10, 15, or 25 sec) during which the amplitudes of electron density fluctuations were registered; measurements were made at night in the 50-74 latitude region. A typical power-law spectrum for the irregularities is presented, and the spectral exponent n is examined as a function of the sunspot number W. It is found that the spectral exponent tends to decrease as solar activity increases.
- Publication:
-
Radiofizika
- Pub Date:
- 1983
- Bibcode:
- 1983RaF....26..770K
- Keywords:
-
- Impedance Probes;
- Ionospheric Electron Density;
- Periodic Variations;
- Satellite-Borne Instruments;
- Irregularities;
- Solar Activity Effects;
- Solar Terrestrial Interactions;
- Geophysics