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AuthorsBradley, P. A. 
TitleFurther study of fOF2 and M(3000)F2 in different solar cycles
Issue DateMay-1994
Series/Report no.37/2
solar-cycle dependence
long-term mapping
Subject Classification01. Atmosphere::01.02. Ionosphere::01.02.99. General or miscellaneous 
AbstractMeasured monthly median fOF2 and M(3000)F2 for Slough over six solar cycles from 1932 onwards are examined for a selection of hours and months. Data are shown as a function of twelve-monthly smoothed sunspot number. Comparisons are made for the different solar cycles and for the rising and falling halves of each cycle. Measurements for individual cycles are compared with best-fit parabolic regression lines over all cycles to investigate possible systematic long-term effects.
Appears in Collections:Annals of Geophysics

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