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Skip to Search Results- 7Rankin, Robert
- 2Sydorenko, Dmytro
- 2Tikhonchuk, V. T.
- 1 Rankin, Robert
- 1Angelopoulos, Vassilis
- 1Bonnell, John
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1999
Tikhonchuk, V. T., Voronkov, I., Samson, J. C., Rankin, Robert
The three-dimensional, nonlinear evolution of a shear how (or Kelvin-Helmholtz (KH)) instability driven by a large-amplitude shear Alfven wave (SAW) in the Earth's magnetosphere is studied by using numerical solutions to the complete set of ideal magnetohydrodynamic equations. An initial setup is...
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Precipitation and nonlinear effects in geomagnetic field line resonancesournal of Geophysical Research: Space Physics, 108(A4), [pp
Download2003
Tikhonchuk, V. T., Prakash, M., Rankin, Robert
The structure of auroral arcs sustained by field line resonances (FLRs) is determined using a model that describes the interplay between ionospheric feedback, nonlinear, and dispersive effects in a curvilinear geomagnetic topology. The model includes modulation of Pedersen conductance by hundreds...
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Resonant drift echoes in electron phase space density produced by dayside Pc5 waves following a geomagnetic storm
Download2008
Rankin, Robert, Degeling, Alex W.
The interaction between relativistic, equatorially mirroring electrons and Pc5 Ultra Low Frequency (ULF) waves in the magnetosphere is investigated using a numerical MagnetoHydroDynamic (MHD) model for waves and a test-kinetic model for electron phase space density (PSD). The temporal and spatial...
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THEMIS observations of the spatial extent and pressure‐pulse excitation of field line resonances
Download2010
Kabin, Konstantin, Liu, Wenlong, Rankin, Robert, Angelopoulos, Vassilis, Glassmeier, Karl-Heinz, Li, X., Sarris, T. E., Bonnell, John, Talaat, Elsayed R.
We present a case study of Field Line Resonances (FLRs) in the dayside magnetosphere, observed in both electric and magnetic field components at multiple L-shells near the equator. The event measured by the five THEMIS probes and the nearby GOES and Geotail satellites provides a unique...
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2012
Fenrich, Frances R., Nedie, Abiyu Z., Rankin, Robert
Ultra-low frequency (ULF) field line resonances (FLRs) cause oscillations in F-region plasma flows and can be detected in SuperDARN measured line-of-sight (l-o-s) velocities. In this paper, we characterize a ULF wave event with coordinated use of SuperDARN HF radars, optical instrumentation,...
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Simulation of O+ upflows created by electron precipitation and Alfvén waves in the ionosphere
Download2013
Sydorenko, Dmytro, Rankin, Robert
A two-dimensional model of magnetosphere-ionosphere coupling is presented. It includes Alfven wave dynamics, ion motion along the geomagnetic field, chemical reactions between ions and neutrals, collisions between different species, and a parametric model of electron precipitation. Representative...
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Enhanced N2 and O2 densities inferred from EISCAT observations of Pc5 waves and associated electron precipitation
Download2016
Yau, Andrew W., Sydorenko, Dmytro, Rankin, Robert
An advanced two-dimensional numerical model of the coupled ionosphere and magnetosphere is used to analyze EISCAT observations of ULF waves that are accompanied by electron precipitation with a wide energy spectrum. The observations show columns of significantly enhanced electron density produced...
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MATLAB functions for Lightning Excitation of the Ionospheric Alfvén Resonator by Charles Nokes
MATLAB functions for Lightning Excitation of the Ionospheric Alfvén Resonator by Charles Nokes
Download2019-01-01
Code for the analysis in the thesis titled "Lightning Excitation of the Ionospheric Alfvén Resonator" by Charles Nokes was written in Matlab. 26 Matlab functions were created in all. lightningandiar.m is the function in which all the main input parameters are set. It then calls the next...