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Phase and coherence analysis of VHF scintillation over Christmas Island.
- Source :
-
Annales Geophysicae (ANGEO) (09927689) . 2014, Vol. 32 Issue 3, p293-300. 8p. - Publication Year :
- 2014
-
Abstract
- This short paper presents phase and coherence data from the cross-wavelet transform applied on longitudinally separated very high frequency (VHF) equatorial ionospheric scintillation observations over Christmas Island. The phase and coherence analyses were employed on a pair of scintillation observations, namely, the east-looking and westlooking VHF scintillation monitors at Christmas Island. Our analysis includes 3 years of peak season scintillation data from 2008, 2009 (low solar activity), and 2011 (moderate solar activity). In statistically significant and high spectral coherence regions of the cross-wavelet transform, scintillation observations from the east-looking monitor lead those from the west-looking monitor by about 20 to 60 (40±20) min (most frequent lead times). Using several years (seasons and solar cycle) of lead (or lag) and coherence information of the cross-wavelet transform, we envisage construction of a probability model for forecasting scintillation in the nighttime equatorial ionosphere. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09927689
- Volume :
- 32
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Annales Geophysicae (ANGEO) (09927689)
- Publication Type :
- Academic Journal
- Accession number :
- 97266371
- Full Text :
- https://doi.org/10.5194/angeo-32-293-2014