Studies of nonlinear ionospheric interactions were undertaken at the High Frequency Active Auroral Research Program (HAARP) site in Alaska using the co-located Modular UHF Incoherent scatter Radar (MUIR). High frequency heating of the ionosphere produced plasma wave decay processes, the signatures of which were received by MUIR and interpreted with spectral analysis in MATLAB. The most commonly observed decay scheme was that of the Parametric Decay Instability, producing the distinct multifrequency cascade feature in the HF backscatter. The results presented here are intended to contribute to the understanding of HF heating facility capabilities, plasma wave decay processes, and diagnostic instrument implementation in experimental analysis.
","abstract_html":"<p>Studies of nonlinear ionospheric interactions were undertaken at the High Frequency Active Auroral Research Program (HAARP) site in Alaska using the co-located Modular UHF Incoherent scatter Radar (MUIR). High frequency heating of the ionosphere produced plasma wave decay processes, the signatures of which were received by MUIR and interpreted with spectral analysis in MATLAB. The most commonly observed decay scheme was that of the Parametric Decay Instability, producing the distinct multifrequency cascade feature in the HF backscatter. The results presented here are intended to contribute to the understanding of HF heating facility capabilities, plasma wave decay processes, and diagnostic instrument implementation in experimental analysis.</p>","abstract_has_math":false,"creators":["Bacon, Margaret Eileen"],"institution":null,"degree_name":"Master of Science (MS)","degree_level":"Open Access Thesis","degree_discipline":"Physics and Astronomy","degree_department":null,"school":null,"contributors":["James Sheerin, PhD, Advisor","Alexandria Oakes, PhD, Department Head","J. Marshall Thomsen, PhD"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2008,"date_issued":"2008-01-01T08:00:00Z","date_published":"2008-01-01T08:00:00Z","updated_at":"2026-07-24T02:16:30Z","subjects":["High-Frequency Active Auroral Research Program (United States)","Ionosphere Research","Plasma waves Research","Physics"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://commons.emich.edu/theses/158","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["James Sheerin, PhD, Advisor","Alexandria Oakes, PhD, Department Head","J. Marshall Thomsen, PhD"]},{"key":"dc:creator","label":"Author","values":["Bacon, Margaret Eileen"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Physics and Astronomy"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Open Access Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (MS)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["High-Frequency Active Auroral Research Program (United States)","Ionosphere Research","Plasma waves Research","Physics"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://commons.emich.edu/theses/158"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Studies of nonlinear ionospheric interactions were undertaken at the High Frequency Active Auroral Research Program (HAARP) site in Alaska using the co-located Modular UHF Incoherent scatter Radar (MUIR). High frequency heating of the ionosphere produced plasma wave decay processes, the signatures of which were received by MUIR and interpreted with spectral analysis in MATLAB. The most commonly observed decay scheme was that of the Parametric Decay Instability, producing the distinct multifrequency cascade feature in the HF backscatter. The results presented here are intended to contribute to the understanding of HF heating facility capabilities, plasma wave decay processes, and diagnostic instrument implementation in experimental analysis.
"]},{"key":"dc:title","label":"Title","values":["MUIR Studies of nonlinear ionospheric interactions at HAARP"]}]}],"canonical_facts":{"dc:contributor":["James Sheerin, PhD, Advisor","Alexandria Oakes, PhD, Department Head","J. Marshall Thomsen, PhD"],"dc:creator":["Bacon, Margaret Eileen"],"dc:description.abstract":["Studies of nonlinear ionospheric interactions were undertaken at the High Frequency Active Auroral Research Program (HAARP) site in Alaska using the co-located Modular UHF Incoherent scatter Radar (MUIR). High frequency heating of the ionosphere produced plasma wave decay processes, the signatures of which were received by MUIR and interpreted with spectral analysis in MATLAB. The most commonly observed decay scheme was that of the Parametric Decay Instability, producing the distinct multifrequency cascade feature in the HF backscatter. The results presented here are intended to contribute to the understanding of HF heating facility capabilities, plasma wave decay processes, and diagnostic instrument implementation in experimental analysis.
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