Search Results - "Tenfjord , Paul"

Time-scale dependence of solar wind-based regression models of ionospheric electrodynamics by Laundal, Karl M., Reistad, Jone P., Hatch, Spencer M., Moretto, Therese, Ohma, Anders, Østgaard, Nikolai, Tenfjord, Paul A. R., Finlay, Christopher C., Kloss, Clemens

“…The solar wind influence on geospace can be described as the sum of a directly driven component, or dayside reconnection, and an unloading component,…”
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On the Presence and Thermalization of Cold Ions in the Exhaust of Antiparallel Symmetric Reconnection by Norgren , Cecilia, Tenfjord , Paul, Hesse , Michael, Toledo-Redondo , Sergio, Li , Wen-Ya, Xu , Yin, Kwagala , Norah Kaggwa, Spinnangr , Susanne, Kolstø , Håkon, Moretto , Therese

“…Using fully kinetic 2.5 dimensional particle-in-cell simulations of anti-parallel symmetric magnetic reconnection, we investigate how initially cold ions are…”
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The asymmetric geospace as displayed during the geomagnetic storm on 17 August 2001 by Østgaard, Nikolai, Reistad, Jone P., Tenfjord, Paul, Laundal, Karl M., Rexer, Theresa, Haaland, Stein E., Snekvik, Kristian, Hesse, Michael, Milan, Stephen E., Ohma, Anders

“…Previous studies have shown that conjugate auroral features are displaced in the two hemispheres when the interplanetary magnetic field (IMF) has a transverse…”
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Validating the Space Weather Modeling Framework (SWMF) for applications in northern Europe by Norah Kaggwa Kwagala, Hesse, Michael, Moretto, Therese, Tenfjord, Paul, Norgren, Cecilia, Tóth, Gabor, Gombosi, Tamas, Kolstø, Håkon M, Spinnangr, Susanne F

“…In this study we investigate the performance of the University of Michigan’s Space Weather Modeling Framework (SWMF) in prediction of ground magnetic…”
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Magnetic Reconnection in a Sheared Magnetic Flux Tube: Slippage Versus Tearing by Kuniyoshi, Hidetaka, Hesse, Michael, Norgren, Cecilia, Tenfjord, Paul, Kwagala, Norah Kaggwa

“…The process of magnetic reconnection in a flux tube can occur in a time‐stationary fashion as slippage reconnection or in a time‐dependent manner based on, for…”
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Overview of Solar Wind–Magnetosphere–Ionosphere–Atmosphere Coupling and the Generation of Magnetospheric Currents by Milan, S. E., Clausen, L. B. N., Coxon, J. C., Carter, J. A., Walach, M.-T., Laundal, K., Østgaard, N., Tenfjord, P., Reistad, J., Snekvik, K., Korth, H., Anderson, B. J.

“…We review the morphology and dynamics of the electrical current systems of the terrestrial magnetosphere and ionosphere. Observations from the Active…”
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Collisionless Magnetic Reconnection in an Asymmetric Oxygen Density Configuration by Kolstø, Håkon Midthun, Hesse, Michael, Norgren, Cecilia, Tenfjord, Paul, Spinnangr, Susanne Flø, Kwagala, Norah

“…Combined with the magnetic field, the distribution of charged particles in the inflow region is expected to control the rate of magnetic reconnection. This…”
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On the Impact of a Streaming Oxygen Population on Collisionless Magnetic Reconnection by Kolstø, Håkon Midthun, Hesse, Michael, Norgren, Cecilia, Tenfjord, Paul, Spinnangr, Susanne Flø, Kwagala, Norah

“…Using 2.5‐D Particle‐In‐Cell (PIC) simulations, we investigate how magnetotail reconnection is affected by a cold, streaming, oxygen plasma population,…”
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Electron Behavior Around the Onset of Magnetic Reconnection by Spinnangr, Susanne F., Hesse, Michael, Tenfjord, Paul, Norgren, Cecilia, Kolstø, Håkon M., Kwagala, Norah K., Jørgensen, Therese Moretto, Phan, Tai

“…We investigate the onset of magnetic reconnection, utilizing a fully kinetic Particle‐In‐Cell (PIC) simulation. Characteristic features of the electron…”
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The Role of Resistivity on the Efficiency of Magnetic Reconnection in MHD by Pérez‐Coll Jiménez, Judit, Tenfjord, Paul, Hesse, Michael, Norgren, Cecilia, Kwagala, Norah, Kolstø, Håkon Midthun, Spinnangr, Susanne Flø

“…Using a resistive MagnetoHydroDynamic (MHD) simulation, we study how the magnitude and shape of diffusion influence magnetic reconnection. Specifically, we…”
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The Micro‐Macro Coupling of Mass‐Loading in Symmetric Magnetic Reconnection With Cold Ions by Spinnangr, Susanne F, Hesse, Michael, Tenfjord, Paul, Norgren, Cecilia, Kolstø, Håkon M, Kwagala, Norah K, Jorgensen, Therese M

“…We investigate how magnetic reconnection is influenced by an inflow of a dense cold ion population. We compare two 2.5D Particle-In-Cell simulations, one…”
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Magnetospheric Multiscale Observations of an Expanding Oxygen Wave in Magnetic Reconnection by Kolsto, Hakon Midthun, Norgren, Cecilia, Hesse, Michael, Chen, Li-Jen, Tenfjord, Paul, Spinnangr, Susanne Flo, Kwagala, Norah

“…Heavier plasma species such as oxygen ions can have a large impact on the magnetic reconnection process. It has been hypothesized that the acceleration of…”
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Asymmetrically Varying Guide Field During Magnetic Reconnection: Particle-In-Cell Simulations by Spinnangr, Susanne F, Tenfjord, Paul, Hesse, Michael, Norgren, Cecilia, Kolstø, Håkon M, Kwagala, Norah K, Jorgensen, Therese Moretto, Jiménez, Judit Pérez-Coll

“…Using fully kinetic particle-in-cell modeling, we investigate how magnetic reconnection responds to a varying guide field in one of the inflow regions. We find…”
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A New Look at the Electron Diffusion Region in Asymmetric Magnetic Reconnection by Hesse, Michael, Norgren, Cecilia, Tenfjord, Paul, Burch, James L., Liu, Yi‐Hsin, Bessho, Naoki, Chen, Li‐Jen, Wang, Shan, Kolstø, Håkon, Spinnangr, Susanne F., Ergun, Robert E., Moretto, Therese, Kwagala, Norah K.

“…A new look at the structure of the electron diffusion region in collision less magnetic reconnection is presented. The research is based on a particle‐in‐cell…”
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Timescales of Dayside and Nightside Field‐Aligned Current Response to Changes in Solar Wind‐Magnetosphere Coupling by Milan, Stephen E., Carter, Jennifer Alyson, Sangha, Harneet, Laundal, Karl M., Østgaard, Nikolai, Tenfjord, Paul, Reistad, Jone Peter, Snekvik, Kristian, Coxon, John C, Korth, Haje, Anderson, Brian J.

“…Principal component analysis is performed on Birkeland or field‐aligned current (FAC) measurements from the Active Magnetosphere and Planetary Electrodynamics…”
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North‐south asymmetries in cold plasma density in the magnetotail lobes: Cluster observations by Haaland, S., Lybekk, B., Maes, L., Laundal, K., Pedersen, A., Tenfjord, P., Ohma, A., Østgaard, N., Reistad, J., Snekvik, K.

“…In this paper, we present observations of cold (0–70 eV) plasma density in the magnetotail lobes. The observations and results are based on 16 years of Cluster…”
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MMS Observations of Multiscale Hall Physics in the Magnetotail by Alm, Love, André, Mats, Graham, Daniel B., Khotyaintsev, Yuri V., Vaivads, Andris, Chappell, Charles. R., Dargent, Jérémy, Fuselier, Stephen A., Haaland, Stein, Lavraud, Benoit, Li, Wenya, Tenfjord, Paul, Toledo‐Redondo, Sergio, Vines, Sarah K.

“…We present Magnetospheric Multiscale mission (MMS) observations of Hall physics in the magnetotail, which compared to dayside Hall physics is a relatively…”
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Validating the Space Weather Modeling Framework (SWMF) for applications in northern Europe: Ground magnetic perturbation validation by Kwagala, Norah Kaggwa, Hesse, Michael, Moretto, Therese, Tenfjord, Paul, Norgren, Cecilia, Tóth, Gabor, Gombosi, Tamas, Kolstø, Håkon M., Spinnangr, Susanne F.

“…In this study we investigate the performance of the University of Michigan’s Space Weather Modeling Framework (SWMF) in prediction of ground magnetic…”
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A new Look at the Electron Diffusion Region in Asymmetric Magnetic Reconnection by Hesse, Michael, Norgren, Cecilia, Tenfjord, Paul, Burch, James L, Liu, Yi-Hsin, Bessho, Naoki, Chen, Li-Jen, Wang, Shan, Kolstø, Håkon, Spinnangr, Susanne F, Ergun, Robert E, Moretto, Therese, Kwagala, Norah K

“…A new look at the structure of the electron diffusion region in collisionless magnetic reconnection is presented. The research is based on a particle-in-cell…”
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