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A Study Of The Secant Law For Sporadic E, Ruey-Yuan Han
A Study Of The Secant Law For Sporadic E, Ruey-Yuan Han
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The secant law is the relationship between the frequencies of a vertically incident wave and an obliquely incident wave that are reflected from the same level (i.e., density) of a stratified ionosphere. This thesis investigates the validity of the secant law applied to sporadic E.
Sporadic E data from two backscatter sounders and one vertical incidence ionosonde located in Japan were studied to test the validity of the secant law. The B-scan photos of the backscatter sounders were searched for Es patches which were then compared with the sporadic E parameters defined for vertical incidence ionograms.
Finally, two theoretical …