{"id":{"repo_id":"rice","oai_identifier":"oai:repository.rice.edu:1911/16748"},"canonical_url":"https://search.dev.ndltd.org/etd/rice/oai:repository.rice.edu:1911/16748","repository":{"repo_id":"rice","name":"Rice University","base_url":"https://repository.rice.edu/server/oai/request"},"display":{"title":"An analytical relationship between the magnetospheric potential drop and the ionospheric conductance","abstract":"In this thesis we derive an analytical relationship between the Earth's magnetospheric potential drop and the ionospheric conductance by adopting a simple two-dimensional model of a magnetic field draping around the tail magnetopause. Two methods are used: (1) matching currents through the tail magnetopause and the Earth's ionosphere in analogy with the Alfven wing at the Jovian satellite Io, (2) minimizing the total power that the solar wind loses to the Earth's magnetosphere. We find, in both cases, that the magnetospheric potential drop, $\\Delta\\phi\\sb{\\rm is}$, is inversely proportional to the ionospheric conductance, $\\Sigma\\sb{\\rm is}$, and we compare this result to the revised result of the numerical model of Fedder and Lyon (1987) and to the conclusions of Hill et al. (1976) and Hill (1984). Considering the derived proportionality factor as a 'magnetosheath conductance', $\\Sigma\\sb{\\rm msh}$, we determine that the high-latitude tail magnetospheric 'driver' acts as a current generator as opposed to a voltage generator.","abstract_html":"In this thesis we derive an analytical relationship between the Earth's magnetospheric potential drop and the ionospheric conductance by adopting a simple two-dimensional model of a magnetic field draping around the tail magnetopause. Two methods are used: (1) matching currents through the tail magnetopause and the Earth's ionosphere in analogy with the Alfven wing at the Jovian satellite Io, (2) minimizing the total power that the solar wind loses to the Earth's magnetosphere. We find, in both cases, that the magnetospheric potential drop, $\\Delta\\phi\\sb{\\rm is}$, is inversely proportional to the ionospheric conductance, $\\Sigma\\sb{\\rm is}$, and we compare this result to the revised result of the numerical model of Fedder and Lyon (1987) and to the conclusions of Hill et al. (1976) and Hill (1984). Considering the derived proportionality factor as a 'magnetosheath conductance', $\\Sigma\\sb{\\rm msh}$, we determine that the high-latitude tail magnetospheric 'driver' acts as a current generator as opposed to a voltage generator.","abstract_has_math":true,"creators":["Krisko, Paula Helene"],"institution":"Rice University","degree_name":"Doctor of Philosophy","degree_level":"Doctoral","degree_discipline":"Natural Sciences","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1994,"date_issued":"1994","date_published":"1994","updated_at":"2026-07-24T04:10:39Z","subjects":["Plasma physics"],"languages":["eng"],"rights":["Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/1911/16748","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Krisko, Paula Helene"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2007-05-09T20:11:59Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2007-05-09T20:11:59Z"]},{"key":"dc:date.issued","label":"Date","values":["1994"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Natural Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Doctoral"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Doctor of Philosophy"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Rice University"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Plasma physics"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/1911/16748"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["In this thesis we derive an analytical relationship between the Earth's magnetospheric potential drop and the ionospheric conductance by adopting a simple two-dimensional model of a magnetic field draping around the tail magnetopause. Two methods are used: (1) matching currents through the tail magnetopause and the Earth's ionosphere in analogy with the Alfven wing at the Jovian satellite Io, (2) minimizing the total power that the solar wind loses to the Earth's magnetosphere. We find, in both cases, that the magnetospheric potential drop, $\\Delta\\phi\\sb{\\rm is}$, is inversely proportional to the ionospheric conductance, $\\Sigma\\sb{\\rm is}$, and we compare this result to the revised result of the numerical model of Fedder and Lyon (1987) and to the conclusions of Hill et al. (1976) and Hill (1984). Considering the derived proportionality factor as a 'magnetosheath conductance', $\\Sigma\\sb{\\rm msh}$, we determine that the high-latitude tail magnetospheric 'driver' acts as a current generator as opposed to a voltage generator."]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["An analytical relationship between the magnetospheric potential drop and the ionospheric conductance"]}]}],"canonical_facts":{"dc:creator":["Krisko, Paula Helene"],"dc:date.accessioned":["2007-05-09T20:11:59Z"],"dc:date.available":["2007-05-09T20:11:59Z"],"dc:date.issued":["1994"],"dc:description.abstract":["In this thesis we derive an analytical relationship between the Earth's magnetospheric potential drop and the ionospheric conductance by adopting a simple two-dimensional model of a magnetic field draping around the tail magnetopause. Two methods are used: (1) matching currents through the tail magnetopause and the Earth's ionosphere in analogy with the Alfven wing at the Jovian satellite Io, (2) minimizing the total power that the solar wind loses to the Earth's magnetosphere. We find, in both cases, that the magnetospheric potential drop, $\\Delta\\phi\\sb{\\rm is}$, is inversely proportional to the ionospheric conductance, $\\Sigma\\sb{\\rm is}$, and we compare this result to the revised result of the numerical model of Fedder and Lyon (1987) and to the conclusions of Hill et al. (1976) and Hill (1984). Considering the derived proportionality factor as a 'magnetosheath conductance', $\\Sigma\\sb{\\rm msh}$, we determine that the high-latitude tail magnetospheric 'driver' acts as a current generator as opposed to a voltage generator."],"dc:format.mimetype":["application/pdf"],"dc:identifier.uri":["https://hdl.handle.net/1911/16748"],"dc:language.iso":["eng"],"dc:rights":["Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder."],"dc:subject":["Plasma physics"],"dc:title":["An analytical relationship between the magnetospheric potential drop and the ionospheric conductance"],"dc:type":["Thesis"],"thesis:degree_discipline":["Natural Sciences"],"thesis:degree_level":["Doctoral"],"thesis:degree_name":["Doctor of Philosophy"],"thesis:institution_name":["Rice University"]},"updated_at":"2026-07-24T04:10:39Z"}