Modeling the Effects of Equatorial Spread F on High Frequency Transmissions Through Ray Tracing.
Abstract
Equatorial Spread F can alter HF transmission paths from the path in a quiet ionosphere; which can cause false target readings in over-the-horizon (OTH) radar. We have developed a two-dimensional ray tracing model from which we are quantifying Spread F effects on OTH radar. Our model uses a Runge-Kutta 4th order integration method to determine the rays path from the provided initial values of the take-off angle of the transmission with the longitude and altitude of the transmitter. Ionospheric spread F conditions are specified by the High-Resolution Bubble Model with spatial resolution of 1 km. We show that the rays paths are greatly altered from quiet time and traveling ionospheric disturbance conditions.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2017
- Bibcode:
- 2017AGUFMSA13A2265P
- Keywords:
-
- 2415 Equatorial ionosphere;
- IONOSPHERE;
- 2435 Ionospheric disturbances;
- IONOSPHERE;
- 2437 Ionospheric dynamics;
- IONOSPHERE;
- 2443 Midlatitude ionosphere;
- IONOSPHERE