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dc.contributor.authorHook, Jerry L.
dc.date.accessioned2024-09-26T00:15:30Z
dc.date.available2024-09-26T00:15:30Z
dc.date.issued1963-05
dc.identifier.urihttp://hdl.handle.net/11122/15410
dc.descriptionUAG R-136; Scientific Report No. 2en_US
dc.description.abstractThe Geophysical Institute of the University of Alaska and the Lockheed Missiles and Space Company conducted a joint experiment to study the relationship between (1) spatial distribution of ionization using 20 and 40 mc/s transmissions from a satellite, (2) the location and luminosity profiles of auroras as measured from ground stations in Alaska, and (3) the flux and energy spectrum of particles penetrating to auroral height as measured by satellite instruments. The experiment was carried out in March, 1962 using a polar orbiting satellite which made twelve passes over Alaska during its operational lifetime. The emphasis of this work is on the determination by radio techniques of the variation of electron content in the ionosphere connected with incident particle fluxes. Methods of determining the electron content from differential Doppler measurements are discussed in detail. The experimental results show that increases in electron content are morphologically correlated with regions of auroral luminosity and incident particle fluxes. The results of the experiment also point out the value of conducting coordinated experiments in the study of auroral phenomena.en_US
dc.description.sponsorshipThis research was supported in part by the Defense Atomic Support Agency, Office of Naval Research under Contract Nonr 3010(04) and by the National Aeronautics and Space Administration under Contract NAS5-1413.en_US
dc.description.tableofcontentsList of illustrations – Chapter I – Introduction – Chapter II – Differential Doppler method – A. Doppler shift – B. Phase path – C. Refraction in an ionized medium – D. Differential Doppler shift – Chapter III – Faraday rotation – Chapter IV – Calculation of the electron content – A. Least square method – B. Combined Doppler-Faraday method – C. Faraday effect on the differential Doppler measurement – Chapter V Experimental equipment – Chapter VI Experimental results – Chapter VII Discussion of the results – Chapter VIII Conclusions – Appendix I Determination of the height of electron density irregularities – Appendix II Fortran computer programs – References.en_US
dc.language.isoen_USen_US
dc.publisherGeophysical Institute at the University of Alaska Fairbanksen_US
dc.subjectIonosphereen_US
dc.subjectResearchen_US
dc.titleElectron content variations in the auroral ionosphere determined from satellite radio observationsen_US
dc.typeReporten_US
refterms.dateFOA2024-09-26T00:15:32Z


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