{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/109378"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/109378","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"The effects of inductive electric field on the spatial and temporal evolution of the inner magnetospheric ring current","abstract":"Made available in DSpace on 2021-03-05T21:38:01Z (GMT). No. of bitstreams: 2 LIU-THESIS-2020.pdf: 12573341 bytes, checksum: 5293a966df4f9376e751643cd04d98db (MD5) LICENSE.txt: 4210 bytes, checksum: e2c7b26887fb19eefa338d64dd85a467 (MD5) Previous issue date: 2020-11-25","abstract_html":"Made available in DSpace on 2021-03-05T21:38:01Z (GMT). No. of bitstreams: 2 LIU-THESIS-2020.pdf: 12573341 bytes, checksum: 5293a966df4f9376e751643cd04d98db (MD5) LICENSE.txt: 4210 bytes, checksum: e2c7b26887fb19eefa338d64dd85a467 (MD5) Previous issue date: 2020-11-25","abstract_has_math":false,"creators":["Liu, Jianghuai"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Electrical & Computer Engr","degree_department":null,"school":null,"contributors":["Ilie, Raluca"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2021,"date_issued":"2021-03-05T21:38:01Z","date_published":"2021-03-05T21:38:01Z","updated_at":"2026-07-22T22:24:50Z","subjects":["Kinetic Model","Ring Current","Inner Magnetosphere","Inductive Electric Field","Particles Acceleration","Magnetic Dipolarization"],"languages":["en"],"rights":["Copyright 2020 Jianghuai Liu"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/109378","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Ilie, Raluca"]},{"key":"dc:creator","label":"Author","values":["Liu, Jianghuai"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2021-03-05T21:38:01Z","2020-11-25","2020-12"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical & Computer Engr"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Kinetic Model","Ring Current","Inner Magnetosphere","Inductive Electric Field","Particles Acceleration","Magnetic Dipolarization"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2020 Jianghuai Liu"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/109378"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Made available in DSpace on 2021-03-05T21:38:01Z (GMT). No. of bitstreams: 2 LIU-THESIS-2020.pdf: 12573341 bytes, checksum: 5293a966df4f9376e751643cd04d98db (MD5) LICENSE.txt: 4210 bytes, checksum: e2c7b26887fb19eefa338d64dd85a467 (MD5) Previous issue date: 2020-11-25","Charged particles are observed to be injected into the inner magnetosphere from the plasma sheet and energized up to high energies over a short distance and time, during both geomagnetic storms and substorms. Numerous studies suggest that it is the short-duration and high-speed plasma flows, which are closely associated with the global effects of magnetic reconnection and inductive effects, rather than the slow and steady convection that control the earthward transport of plasma and magnetic flux from the magnetotail, especially during geomagnetic activities. In order to include the effect of the inductive electric field produced by the temporal change of magnetic field on the dynamics of ring current, we implemented both theoretical and numerical modifications to an inner magnetosphere kinetic model---Hot Electron-Ion Drift Integrator. New drift terms associated with the inductive electric field are incorporated into the calculation of bounce-averaged coefficients for the distribution function, and their numerical implementations and the associated effects on total drift and energization rate are discussed. Numerical simulations show that the local particle drifts are significantly altered by the presence of inductive electric fields, in addition to the changing magnetic gradient-curvature drift due to the distortion of the magnetic field, and at certain locations, the inductive drift dominates both the potential and the magnetic gradient-curvature drift. The presence of a self-consistent inductive electric field alters the overall particle trajectories, energization, and pitch angle, resulting in significant changes in the topology and the strength of the ring current.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2021-03-04 without embargo terms","The student, Jianghuai Liu, accepted the attached license on 2020-11-24 at 18:12.","The student, Jianghuai Liu, submitted this Thesis for approval on 2020-11-24 at 18:40.","This Thesis was approved for publication on 2020-11-25 at 12:02.","DSpace SAF Submission Ingestion Package generated from Vireo submission #15929 on 2021-03-04 at 15:34:52"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["The effects of inductive electric field on the spatial and temporal evolution of the inner magnetospheric ring current"]}]}],"canonical_facts":{"dc:contributor":["Ilie, Raluca"],"dc:creator":["Liu, Jianghuai"],"dc:date":["2021-03-05T21:38:01Z","2020-11-25","2020-12"],"dc:description":["Made available in DSpace on 2021-03-05T21:38:01Z (GMT). No. of bitstreams: 2 LIU-THESIS-2020.pdf: 12573341 bytes, checksum: 5293a966df4f9376e751643cd04d98db (MD5) LICENSE.txt: 4210 bytes, checksum: e2c7b26887fb19eefa338d64dd85a467 (MD5) Previous issue date: 2020-11-25","Charged particles are observed to be injected into the inner magnetosphere from the plasma sheet and energized up to high energies over a short distance and time, during both geomagnetic storms and substorms. Numerous studies suggest that it is the short-duration and high-speed plasma flows, which are closely associated with the global effects of magnetic reconnection and inductive effects, rather than the slow and steady convection that control the earthward transport of plasma and magnetic flux from the magnetotail, especially during geomagnetic activities. In order to include the effect of the inductive electric field produced by the temporal change of magnetic field on the dynamics of ring current, we implemented both theoretical and numerical modifications to an inner magnetosphere kinetic model---Hot Electron-Ion Drift Integrator. New drift terms associated with the inductive electric field are incorporated into the calculation of bounce-averaged coefficients for the distribution function, and their numerical implementations and the associated effects on total drift and energization rate are discussed. Numerical simulations show that the local particle drifts are significantly altered by the presence of inductive electric fields, in addition to the changing magnetic gradient-curvature drift due to the distortion of the magnetic field, and at certain locations, the inductive drift dominates both the potential and the magnetic gradient-curvature drift. The presence of a self-consistent inductive electric field alters the overall particle trajectories, energization, and pitch angle, resulting in significant changes in the topology and the strength of the ring current.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2021-03-04 without embargo terms","The student, Jianghuai Liu, accepted the attached license on 2020-11-24 at 18:12.","The student, Jianghuai Liu, submitted this Thesis for approval on 2020-11-24 at 18:40.","This Thesis was approved for publication on 2020-11-25 at 12:02.","DSpace SAF Submission Ingestion Package generated from Vireo submission #15929 on 2021-03-04 at 15:34:52"],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/2142/109378"],"dc:language":["en"],"dc:rights":["Copyright 2020 Jianghuai Liu"],"dc:subject":["Kinetic Model","Ring Current","Inner Magnetosphere","Inductive Electric Field","Particles Acceleration","Magnetic Dipolarization"],"dc:title":["The effects of inductive electric field on the spatial and temporal evolution of the inner magnetospheric ring current"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Electrical & Computer Engr"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:50Z"}