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dc.contributor.advisor Sazykin, Stanislav
dc.creatorSong, Yang
dc.date.accessioned 2013-03-08T00:39:06Z
dc.date.available 2013-03-08T00:39:06Z
dc.date.issued 2011
dc.identifier.urihttps://hdl.handle.net/1911/70447
dc.description.abstract The inner magnetosphere modeling is an important component of the magnetosphere simulation frameworks with significant implications for space weather and a. principle methodology to understand the magnetospheric response to changes in the solar wind. The thesis shows our efforts in constructing and validating the contemporary Rice Convection Model (RCM) code and its interface as a next-generation code to predict electric fields, field-aligned currents, and energetic particle fluxes in the inner magnetosphere and subauroral ionosphere during geomagnetic disturbed times. The RCM was used to simulate the geomagnetic storms with fixed boundary conditions of time-dependent Tsyganenko-Mukai boundary conditions. This work shows the results of two extremely- strong storm events with significant interchange motion. The ring current injection predicted by the RCM is shown to be overestimated, consistent with the previous results of overestimating particle fluxes by the RCM. This effect is magnified here since the southward component of interplanetary magnetic field is very strong reaching about 50 nT. Time-dependent Borovsky's boundary condition is implemented and used to alleviate the huge pressure and get better tendency of ring current energy calculated by the Dessler-Parker-Sckopke relation. This work also describes a new module of generalized Knight's relation to compute the parallel potential drops from the calculated field-aligned currents through Vasyliunas equation. It gives different ionospheric conductance and plasma drift signatures particularly around the midnight. The inclusion of parallel electric fields will replace the treatments of energy flux in the substorm simulations since that the Hardy normalization cannot perform the desired function during the substorm expansion phase and the energy flux floor gives arbitrary enhanced the precipitating energy flux and ionospheric conductances at high latitude especially for the westward clectrojet around the midnight. Since the original Knight's relation gives too large field-aligned potential drop, the modified Knight's relation is applied and implemented successfully into the RCM. Therefore, the RCM is capable of real time event simulation including strong geomagnetic storms and magnetospheric substorms, although full validation of model predictions with typical observations remains to be done.
dc.format.extent 431 p.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.subjectApplied sciences
Pure sciences
Plasma injection
Magnetosphere
Rice convection model
Geomagnetic storms
Space weather
Electromagnetics
Plasma physics
Computer science
dc.title Space Weather Event Modeling of Plasma Injection Into the Inner Magnetosphere with the Rice Convection Model
dc.identifier.digital SongY
dc.type.genre Thesis
dc.type.material Text
thesis.degree.department Physics
thesis.degree.discipline Natural Sciences
thesis.degree.grantor Rice University
thesis.degree.level Doctoral
thesis.degree.name Doctor of Philosophy
dc.identifier.citation Song, Yang. "Space Weather Event Modeling of Plasma Injection Into the Inner Magnetosphere with the Rice Convection Model." (2011) Diss., Rice University. https://hdl.handle.net/1911/70447.


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