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Title:Ion and electron temperatures in the topside ionosphere
Author(s):Munninghoff, Donald Edward
Doctoral Committee Chair(s):Bowhill, S.A.
Department / Program:Physics
Discipline:Physics
Degree:Ph.D.
Genre:Dissertation
Subject(s):ion temperatures
electron temperatures
topside ionosphere
incoherent-scatter data
photoionization
Abstract:Experimental and theoretical ion and electron temperatures in the topside ionosphere are investigated. Experimental results come from an analysis of incoherent-scatter data taken at Arecibo, Puerto Rico. Consideration of the energy balance equations gives the theoretical ion and electron temperatures. Two ions, 0+ and H+, are assumed to be the only ions present in the topside ionosphere. Experimental evidence shows that a third ion, He+ is + + relatively unimportant compared to 0 and H. Photoionization of neutral particles, charge transfer, and diffusion of these charged particles are the important physical processes which are used to calculate their number + + + density profiles. o and H number densities are shown to affect the 0 , H+, and electron temperatures. Analysis of theoretical autocorrelation functions of the incoherent-scatter power spectra shows that number densities and temperatures of 0+ , + II , and electrons can be deduced from experimental autocorrelation functions. Experimental temperature results indicate that the maximum difference between ++ Hand 0 temperatures occurs at 550 km. This agrees with temperatures calculated from the energy balance equations. The experimental and theoretical .t and 0+ temperatures agree fairly closely from 200 to 1200 km while the electron temperatures agree from 400 to 1200 km.
Issue Date:1978
Genre:Dissertation / Thesis
Type:Text
Language:English
URI:http://hdl.handle.net/2142/25605
Rights Information:1978 Donald Edward Munninghoff
Date Available in IDEALS:2011-06-30
Identifier in Online Catalog:311916


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