First calculation of phase and coherence of longitudinally separated L-band equatorial ionospheric scintillation
Article first published online: 22 JUL 2013
©2013. American Geophysical Union. All Rights Reserved.
Geophysical Research Letters
Volume 40, Issue 14, pages 3496–3501, 28 July 2013
How to Cite
2013), First calculation of phase and coherence of longitudinally separated L-band equatorial ionospheric scintillation, Geophys. Res. Lett., 40, 3496–3501, doi:10.1002/grl.50702., and (
- Issue published online: 22 AUG 2013
- Article first published online: 22 JUL 2013
- Accepted manuscript online: 1 JUL 2013 11:43AM EST
- Manuscript Accepted: 27 JUN 2013
- Manuscript Received: 17 JUN 2013
- plasma irregularities
 We present the first calculation of phase and coherence of cross-wavelet transform applied to longitudinally separated L-band equatorial ionospheric scintillation observations received from Geostationary Earth Orbit (GEO) satellites. The phase and coherence analysis were employed on two pairs of observations: (1) São Luís and Rio Branco and (2) Alta Floresta and Huancayo. For these case studies, in statistically significant and high-coherence regions, scintillation observations over São Luís (Alta Floresta) lead that of Rio Branco (Huancayo) by ∼2 to 3 h with a 95%frequency. If L-band scintillation happens over São Luís (Alta Floresta), there is a 95%likelihood that scintillation would happen to the west over Rio Branco (Huancayo) after ∼2 to 3 h, suggesting that a forecast can be made ahead of scintillation occurrences. The phase and coherence relationships between the longitudinally separated scintillation-producing regions can be connected to the large-scale wave structures which are reported to be related to the generation of equatorial spread F and scintillation.