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Directional dispersion of sporadic‐ E modes between 9 and 14 MHz
Author(s) -
Sherrill W. M.,
Smith G. A.
Publication year - 1977
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs012i005p00773
Subject(s) - physics , azimuth , spectral line , dispersion (optics) , optics , mode (computer interface) , visibility , halo , core (optical fiber) , computational physics , atomic physics , astrophysics , astronomy , computer science , operating system , galaxy
Visibility function analysis of sporadic‐ E mode fine structure was performed on a 830 km path between 10 and 14 MHz. Angular spectra derived show resolved doublet magnetoionic components with angular separation of 4.5 to 6 deg. Individual singlet components appear with 1 to 2 deg angular width. Compared to other mode fine structure data, these results indicate increased azimuth spread and multiple lines predominate on paths less than 1000 km, while longer paths more nearly conform to 1 to 2 deg core and halo distributions.