Search Results - "Wiltberger, M. J."

Simulations of Electron Energization and Injection by BBFs Using High‐Resolution LFM MHD Fields by Eshetu, W. W., Lyon, J. G., Hudson, M. K., Wiltberger, M. J.

“…We study electron injection and energization by bursty bulk flows (BBFs), by tracing electron trajectories using magnetohydrodynamic (MHD) field output from…”
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Pitch Angle Scattering of Energetic Electrons by BBFs by Eshetu, W. W., Lyon, J. G., Hudson, M. K., Wiltberger, M. J.

“…Field line curvature scattering by the magnetic field structure associated with bursty bulk flows (BBFs) has been studied, using simulated output fields from…”
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Magnetohydrodynamic modeling of three Van Allen Probes storms in 2012 and 2013 by Paral, J., Hudson, M. K., Kress, B. T., Wiltberger, M. J., Wygant, J. R., Singer, H. J.

“…Coronal mass ejection (CME)-shock compression of the dayside magnetopause has been observed to cause both prompt enhancement of radiation belt electron flux…”
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A statistical study of magnetosphere–ionosphere coupling in the Lyon–Fedder–Mobarry global MHD model by Zhang, B., Lotko, W., Wiltberger, M.J., Brambles, O.J., Damiano, P.A.

“…The statistics of magnetosphere–ionosphere (MI) coupling derived from a two-month long run of the Lyon–Fedder–Mobarry (LFM) global simulation model are…”
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Numerical Calculations of Adiabatic Invariants From MHD‐Driven Magnetic Fields by Silva, D. E., Elkington, S. R., Li, X., Murphy, J., Hudson, M. K., Wiltberger, M. J., Chan, A. A.

“…The adiabatic invariants (M, J, Φ) and the related invariants (M, K, L*) have been established as effective coordinate systems for describing radiation belt…”
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Intercomparison of ionospheric electrodynamics from the Iridium constellation with global MHD simulations by Korth, H., Anderson, B. J., Wiltberger, M. J., Lyon, J. G., Anderson, P. C.

“…Global magnetospheric simulation results of the field‐aligned current (FAC) density at low altitudes are compared with global two‐dimensional distributions of…”
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Phase transition-like behavior of magnetospheric substorms: Global MHD simulation results by Shao, X., Sitnov, M. I., Sharma, S. A., Papadopoulos, K., Goodrich, C. C., Guzdar, P. N., Milikh, G. M., Wiltberger, M. J., Lyon, J. G.

“…Using nonlinear dynamical techniques, we statistically investigate whether the simulated substorms from global magnetohydrodynamic (MHD) models have a…”
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Three-dimensional MHD simulations of the steady state magnetosphere with northward interplanetary magnetic field by Guzdar, P. N., Shao, X., Goodrich, C. C., Papadopoulos, K., Wiltberger, M. J., Lyon, J. G.

“…In the recent past, three‐dimensional global MHD codes have successfully demonstrated that they are invaluable tools for simulating global magnetospheric…”
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Comparing ground magnetic field perturbations from global MHD simulations with magnetometer data for the 10 January 1997 magnetic storm event by Shao, X., Guzdar, P. N., Milikh, G. M., Papadopoulos, K., Goodrich, C. C., Sharma, A., Wiltberger, M. J., Lyon, J. G.

“…A model has been developed to calculate the perturbed magnetic field at various ground‐based magnetometer sites using the output of the ionospheric currents…”
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Evidence for quasi-steady near-earth magnetotail reconnection during magnetic storms using global MHD simulation results and magnetotail magnetic field observations by Lopez, R.E, Benitez-Marquez, E, Wiltberger, M.J, Lyon, J.G, Figueroa, R

“…Global MHD models have become more sophisticated, and computing power has increased, so that it is now possible to model actual events using solar wind data as…”
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Comparison of global MHD simulation results with actual storm and substorm events by Lopez, R.E., Lyon, J.G., Wiltberger, M.J., Goodrich, C.C.

“…Global MHD models hold the promise of providing a physics-based understanding of magnetospheric structure and dynamics. As such models have become more…”
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Three-dimensional MHD simulations of the Earth's magnetosphere on Feb 9-10 1995 for northward interplanetary magnetic field and comparison of the lobe field with Geotail observations by Shao, X., Guzdar, P. N., Papadopoulos, K., Goodrich, C. C., Sharma, A. S., Milikh, G. M., Wiltberger, M. J., Lyon, J. G.

“…Three‐dimensional Global magnetohydrodynamic simulations of the quiet‐time magnetosphere are compared to data obtained from the Geotail satellite. For the…”
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Modeling ionospheric absorption modified by anomalous heating during substorms by Milikh, G. M., Dimant, Y. S., Shao, X., Guzdar, P. N., Sharma, A. S., Papadopoulos, K., Burns, E. M., Goodrich, C. C., Rosenberg, T. J., Weatherwax, A. T., Wiltberger, M. J., Lyon, J. G., Fedder, J. A.

“…Riometers monitor the changes in ionospheric conductivity by measuring the absorption of very high frequency radio noise of galactic origin passing through the…”
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Present status and future challenges of modeling the Sun–Earth end-to-end system by Baker, D.N., Wiltberger, M.J., Weigel, R.S., Elkington, S.R.

“…Several research groups are presently modeling key portions of the solar–terrestrial environment. Large-scale models of the solar corona, of the interplanetary…”
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MHD/particle simulations of radiation belt dynamics by Elkington, Scot R., Hudson, Mary K., Wiltberger, Michael J., Lyon, John G.

“…Particle fluxes in the outer radiation belts can show substantial variation in time, over scales ranging from a few minutes, such as during the sudden…”
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Convection during strong driving in MHD simulations: Evolution of flux tube volume by Krastev, P., Lopez, R.E., Hernandez, S., Wiltberger, M.J.

“…In this work, we examine convection during very strong driving during magnetic storms using global MHD simulations of the interaction of the solar wind with…”
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Polar cap potential during magnetic storms: MHD simulations by Arceo, R., Lopez, R.E., Wiltberger, M.J., Lyon, J.G.

“…In this paper, we will examine the variation of the polar cap potential during magnetic storms using global magnetohydrodynamic (MHD) simulations of the…”
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Ring current development in MHD simulations by Bruntz, R.J., Lopez, R.E., Turner, N.E., Wiltberger, M.J., Lyon, J.G.

“…A signature feature of magnetic storms is the development of a ring current. Recent ideas on ring current formation suggest that during the main phase of…”
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Intercomparison of ionospheric electrodynamics from the Iridium constellation with global MHD simulations by KORTH, H, ANDERSON, B. J, WILTBERGER, M. J, LYON, J. G, ANDERSON, P. C

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Comparing ground magnetic field perturbations from global MHD simulations with magnetometer data for the 10 January 1997 magnetic storm event by Shao, X, Guzdar, P N, Milikh, G M, Papadopoulos, K, Goodrich, C C, Sharma, A, Wiltberger, M J, Lyon, J G

“…A model has been developed to calculate the perturbed magnetic field at various ground-based magnetometer sites using the output of the ionospheric currents…”
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