Solar wind control of the open magnetosphere: Comparison of GGS/polar images and theory

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dc.contributor.advisorHill, Thomas W.
dc.creatorUrquhart, Andrew Lee
dc.date.accessioned2009-06-04T07:03:20Z
dc.date.available2009-06-04T07:03:20Z
dc.date.issued2001
dc.description.abstractThis investigation explores the connection between the open polar cap magnetic flux phiPCF and interplanetary conditions. phi PCF is determined from GGS/Polar VIS Earth Camera far ultraviolet observations of the aurora borealis. Observations from the GGS/Wind SWE and MFI instruments are used to characterize the interplanetary conditions. Additional observations from the IMP-8 PLA and MAG instruments are used to evaluate solar wind propagation time delay estimation methods so that the GGS/Wind observations can be better associated with the GGS/Polar observations. This allows the GGS/Wind observations to be used to estimate the polar cap potential &phis;PCP values associated with the GGS/Polar phiPCF values. Statistical methods are applied to determine a proxy relationship between &phis;PCP and phiPCF. The Rice Field Model (RFM) is modified to accept phi PCF as a configuration parameter, and RFM polar caps are produced using phi PCF determined both directly from the GGS/Polar images and by the proxy relationship from the GGS/Wind data. The RFM is able to produce polar caps with the same areas and open magnetic fluxes as the GGS/Polar observations, but the agreement in the polar cap shapes and locations leaves opportunities for further improvements.
dc.format.extent143 p.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.callnoTHESIS PHYS. 2001 URQUHART
dc.identifier.citationUrquhart, Andrew Lee. "Solar wind control of the open magnetosphere: Comparison of GGS/polar images and theory." (2001) Diss., Rice University. <a href="https://hdl.handle.net/1911/18041">https://hdl.handle.net/1911/18041</a>.
dc.identifier.urihttps://hdl.handle.net/1911/18041
dc.language.isoeng
dc.rightsCopyright 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.subjectGeophysics
dc.subjectAstronomy
dc.subjectAstrophysics
dc.subjectPhysics
dc.subjectElectromagnetics
dc.titleSolar wind control of the open magnetosphere: Comparison of GGS/polar images and theory
dc.typeThesis
dc.type.materialText
thesis.degree.departmentPhysics
thesis.degree.disciplineNatural Sciences
thesis.degree.grantorRice University
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy
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