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- 18Kabin, Konstantin
- 17Rankin, Robert
- 8Gombosi, Tamas I.
- 8Ridley, Aaron J.
- 6Clauer, C. Robert
- 5Marchand, Richard
- 4Global Mhd Modeling
- 3Open-Closed Field Line Boundary
- 2Auroral Plasma
The THEMIS five-probe constellation was launched in 17 February 2007 to study substorms; however its instrumentation and the alignment at distances <1RE among some of the THEMIS probes, particularly in the first period of its mission, provides unique opportunities to study ULF pulsations in the...
Comparison of photometer and global MHD determination of the open‐closed field line boundaryournal of Geophysical Research: Space Physics, 109(A1), [ppDownload
We compare open-closed field line boundary positions from the BATS-R-US Global MHD model and CANOPUS photometer measurements of red-line emissions. We choose intervals of steady interplanetary and ionospheric conditions in order to adhere to the \"steady-state'' picture that we are trying to...
Comparison of the open‐closed separatrix in a global magnetospheric simulation with observations: The role of the ring currentDownload
Kabin, Konstantin, Lu, J. Y., Rankin, Robert, Gombosi, Tamas I., Watt, Clare E. J., Ridley, Aaron J., Toth, Gabor, Milan, Steve E., Zhang, Jichun, Rae, I. Johnathan, Clauer, C. Robert, De Zeeuw, Darren L., Fenrich, Frances
The development of global magnetospheric models, such as Space Weather Modeling Framework (SWMF), which can accurately reproduce and track space weather processes has high practical utility. We present an interval on 5 June 1998, where the location of the polar cap boundary, or open-closed field...
Deformation and evolution of solar wind discontinuities through their interactions with the Earth's bow shockDownload
Kabin, Konstantin, Keika, Kunihiro, Rankin, Robert, Carr, C. M., Carlson, C. W., Glassmeier, Karl-Heinz, Magnes, Werner, Lucek, Elizabeth, McFadden, J. P., Dandouras, Iannis, Auster, H. U., Sibeck, D. G., Fornacon, K.-H., Angelopoulos, Vassilis, Baumjohann, W., Nakamura, Rumi
The present study examines the interaction of solar wind discontinuities with the Earth's bow shock, using multipoint observations in the magnetosheath by Time History of Events and Macroscale Interactions During Substorms (THEMIS), Cluster, and Double Star TC1. We focus on the deformation and...
Dipole tilt effects on the magnetosphere‐ionosphere convection system during interplanetary magnetic field BY‐dominated periods: MHD modelingDownload
Using numerical magnetohydrodynamic simulations, we examine the dipole tilt effects on the magnetosphere-ionosphere convection system when the interplanetary magnetic field is oblique northward (B-Y = 4 nT and B-Z = 2 nT). In particular, we clarify the relationship between viscous-driven...
The adiabatic drift-resonant interaction between relativistic, equatorially mirroring electrons and narrowband, Pc 5 ultra low frequency (ULF) waves in the magnetosphere is investigated using a time-dependent magnetohydrodynamic (MHD) wave model. Attention is focused on the effect of a ULF wave...
Dynamic response of Earth's magnetosphere to By reversalsournal of Geophysical Research: Space Physics, 108(A3), [ppDownload
In this paper we use a three-dimensional magnetohydrodynamic (MHD) model to study the response of the magnetosphere-ionosphere system to a sudden change in the sign of the By component of the interplanetary magnetic field. We find that after such a change the magnetosphere responds as a linear...
A nonlinear two-dimensional fluid model describing excitation of the ionospheric Alfven resonator by a shear Alfven wave coming from the magnetosphere is developed. Initially, the plasma is in an equilibrium defined by a balance between the gravity, electric field, and pressure gradient forces....
On the basis of magnetohydrodynamic simulation results for northward interplanetary magnetic field ( IMF) and significant dipole tilt, we describe internal reconnection processes that occur earthward of the magnetopause subsequent to magnetopause reconnection. We discuss the associated...
Magnetospheric field‐line resonances: Ground‐based observations and modelingournal of Geophysical Research: Space Physics, 110(A10), [ppDownload
We present theory and ground-based observations of field-line resonances (FLRs) excited in Earth's magnetosphere. Three FLR observations are reported, which correspond to large-scale standing shear Alfven wave (SAW) oscillations on nightside field lines extending from premidnight to close to...