Efficient ray tracing through a realistic ionosphere
Article first published online: 7 DEC 2012
Copyright 1988 by the American Geophysical Union.
Volume 23, Issue 3, pages 247–256, May-June 1988
How to Cite
1988), Efficient ray tracing through a realistic ionosphere, Radio Sci., 23(3), 247–256, doi:10.1029/RS023i003p00247., and (
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 11 JAN 1988
- Manuscript Received: 14 SEP 1987
An algorithm for accurate three‐dimensional ray tracing is presented for realistic, nonspherical ionospheric electron density distributions, ignoring effects of the magnetic field. At the start of each ray path increment a truncated Taylor series expansion of the electron density results in a computationally efficient, closed‐form solution of the Euler‐Lagrange equations for the increment. The technique is applied to computations of ray paths in a nonspherical ionosphere which is specified by a climatological model used for HF over‐the‐horizon (OTH) radar studies. The effects of tilts in a sunrise transition region on signal losses and ray path deviations are found to be substantial. Results of various ionospheric approximations used for single‐site transmitter location are calculated.