Analysis of the relationship between LF reflection coefficients and D-region profiles
Abstract
In calculating D region electron density profiles from LF reflection coefficient measurements, it is important to order those measurements according to depth of penetration into the ionosphere. A ray theory analysis, a set of full-wave reflection coefficient calculations, and reflection coefficient measurements support the approximation that those waves with the larger equivalent frequency f(cos squared (i sub 0)) will penetrate further into the ionosphere. This approximation is more accurate for those waves that reflect below the height where the collision frequency equals the gyrofrequency where the earth's magnetic field has negligible effect.
- Publication:
-
Unknown
- Pub Date:
- November 1977
- Bibcode:
- 1977arbl.rept.....J
- Keywords:
-
- D Region;
- Electron Density (Concentration);
- Reflectance;
- Earth Ionosphere;
- Electromagnetic Properties;
- Low Frequencies;
- Radio Waves;
- Remote Sensors;
- Geophysics