This program provides estimates of the effects of ionospheric scintillation on the transionospheric radio channel for frequencies above 100 MHz. It is based on a climatology of F-region electron-density irregularities that cause scintillation (Secan et al. 1995, 1997) and a power-law, phase-screen propagation model (Rino, 1979). The model is global, and includes variations with solar cycle, season, geomagnetic disturbance levels, and local time. Further information can be found at the author's WWW site.
Availability: Contact authors for release information.
Fremouw, E. J., and J. A. Secan, Modeling and scientific application of scintillation results, Radio Sci., 19, 687-0694, 1984.
Fremouw, E. J., and A. Ishimaru, Intensity scintillation index and mean apparent radar cross section onmonostatic and bistatic paths, Radio Sci., 27, 539-543, 1992.
Rino, C. L., A power law phase screen model for ionospheric scintillation, 1, Weak scatter, Radio Sci., 6, 1135-1145, 1979.
Secan, J. A., R. M. Bussey, E. J. Fremouw, and Sa. Basu, An improved model of equatorial scintillation, Radio Sci., 30, 607-617, 1995.
Secan, J. A., R. M. Bussey, E. J. Fremouw, and Sa. Basu, High-latitude upgrade to the Wideband ionospheric scintillation model, Radio Sci., 32, 1567-1574, 1997.
NASA Official: Dr. Robert McGuire, Head of the Space Physics Data Facility