Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/1715
AuthorsReinisch, B. W.* 
Huang, X.* 
TitleThe F1 ledge: density, height and slope
Issue DateAug-1996
Series/Report no.39/4
URIhttp://hdl.handle.net/2122/1715
KeywordsIonosphere
electron density profile
ionospheric modeling
Subject Classification01. Atmosphere::01.02. Ionosphere::01.02.99. General or miscellaneous 
AbstractDiurnal variations of the F1 region ionization at 170 km altitude and the slope ?170 = dN/dh at this height are analyzed for mid-latitude and equatorial stations: Millstone Hill, Ramey, Puerto Madryn and Jicamarca. Both the density N(t) and the slope ?(t)at 170 km show well defined diurnal variations with day-to-day variabilities of less than 10%. The heights of the F1 ledge, hmF1, are spread over ± 20 km and are therefore of limited value for modeling purposes.
Appears in Collections:Annals of Geophysics

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