{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/25605"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/25605","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Ion and electron temperatures in the topside ionosphere","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.","abstract_html":"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.","abstract_has_math":false,"creators":["Munninghoff, Donald Edward"],"institution":null,"degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Bowhill, S.A."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-06-30T17:10:18Z","date_published":"2011-06-30T17:10:18Z","updated_at":"2026-07-22T22:25:24Z","subjects":["photoionization","ion temperatures","electron temperatures","topside ionosphere","incoherent-scatter data"],"languages":["en"],"rights":["1978 Donald Edward Munninghoff"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["311916"],"render_values":[{"text":"311916","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/25605","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Bowhill, S.A."]},{"key":"dc:creator","label":"Author","values":["Munninghoff, Donald Edward"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-06-30T17:10:18Z","10000-01-01","1978"]},{"key":"dc:type","label":"Dc Type","values":["Dissertation / Thesis","text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Physics"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["photoionization","ion temperatures","electron temperatures","topside ionosphere","incoherent-scatter data"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["1978 Donald Edward Munninghoff"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/25605","311916"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["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.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-30T17:10:18Z No. of bitstreams: 1 1978_munninghoff.pdf: 9237084 bytes, checksum: 315060c119e5294201f49b30bf658f8f (MD5)","Made available in DSpace on 2011-06-30T17:10:18Z (GMT). No. of bitstreams: 1 1978_munninghoff.pdf: 9237084 bytes, checksum: 315060c119e5294201f49b30bf658f8f (MD5) Previous issue date: 1978","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-06-30T17:10:18Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:32:31-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis","Thesis","U of I Only"]},{"key":"dc:title","label":"Title","values":["Ion and electron temperatures in the topside ionosphere"]}]}],"canonical_facts":{"dc:contributor":["Bowhill, S.A."],"dc:creator":["Munninghoff, Donald Edward"],"dc:date":["2011-06-30T17:10:18Z","10000-01-01","1978"],"dc:description":["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.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-30T17:10:18Z No. of bitstreams: 1 1978_munninghoff.pdf: 9237084 bytes, checksum: 315060c119e5294201f49b30bf658f8f (MD5)","Made available in DSpace on 2011-06-30T17:10:18Z (GMT). No. of bitstreams: 1 1978_munninghoff.pdf: 9237084 bytes, checksum: 315060c119e5294201f49b30bf658f8f (MD5) Previous issue date: 1978","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-06-30T17:10:18Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:32:31-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis","Thesis","U of I Only"],"dc:identifier":["http://hdl.handle.net/2142/25605","311916"],"dc:language":["en"],"dc:rights":["1978 Donald Edward Munninghoff"],"dc:subject":["photoionization","ion temperatures","electron temperatures","topside ionosphere","incoherent-scatter data"],"dc:title":["Ion and electron temperatures in the topside ionosphere"],"dc:type":["Dissertation / Thesis","text"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."]},"updated_at":"2026-07-22T22:25:24Z"}