Multiple phase screen modeling of ionospheric scintillation along radio occultation raypaths
Article first published online: 8 JUL 2011
Copyright 2011 by the American Geophysical Union.
Volume 46, Issue 6, December 2011
How to Cite
2011), Multiple phase screen modeling of ionospheric scintillation along radio occultation raypaths, Radio Sci., 46, RS0D07, doi:10.1029/2010RS004591., , , , and (
- Issue published online: 8 JUL 2011
- Article first published online: 8 JUL 2011
- Manuscript Accepted: 13 APR 2011
- Manuscript Revised: 17 MAR 2011
- Manuscript Received: 30 NOV 2010
- radio occultation;
- multiple phase screen;
 We present the Radio Occultation Scintillation Simulator (ROSS), which uses the multiple phase screen method (MPS) to simulate the forward scatter of radio waves by irregularities in the equatorial ionosphere during radio occultation experiments. ROSS simulates propagation through equatorial plasma bubbles which are modeled as homogeneous electron density fluctuations modulated by a Chapman profile in altitude and a Gaussian window in the magnetic east-west direction. We adjust the parameters of the density model using electron density profiles derived from the ALTAIR incoherent scatter radar (9.4°N, 167.5°E, 4.3° north dip), and space-to-ground observations of scintillation using VHF and GPS receivers that are colocated with the radar. We compare the simulated occultation scintillation to observations of scintillation from the CORISS instrument onboard the C/NOFS satellite during a radio occultation occurring near ALTAIR on 21 April 2009. The ratio of MPS predicted S4 to CORISS observed S4 throughout the F region altitudes of 240–350 km ranged between 0.86 and 1.14.