Results 31 to 40 of about 177,034 (301)

Comparing magnetopause predictions from two MHD models during a geomagnetic storm and a quiet period

Frontiers in Astronomy and Space Sciences, 2023
Magnetopause location is an important prediction of numerical simulations of the magnetosphere, yet the models can err, either under-predicting or over-predicting the motion of the boundary.
Pauline M. Dredger, Ramon E. Lopez, Yaireska M. Collado-Vega   +2 more
doaj   +1 more source

Relationship between large-scale ionospheric field-aligned currents and electron/ion precipitations: DMSP observations

Earth, Planets and Space, 2020
In this study, we have derived field-aligned currents (FACs) from magnetometers onboard the Defense Meteorological Satellite Project (DMSP) satellites.
Chao Xiong, Claudia Stolle, Patrick Alken, Jan Rauberg   +3 more
doaj   +1 more source

Swarm Observations of Dawn/Dusk Asymmetries Between Pedersen Conductance in Upward and Downward Field‐Aligned Current Regions

Earth and Space Science, 2021
The locations of region 1 and 2 field‐aligned current systems were determined using fluxgate magnetometer measurements from 875 dawn‐dusk passes of the Swarm A satellite.
L. Olifer, C. Feltman, R. Ghaffari, S. Henderson, D. Huyghebaert, J. Burchill, A. N. Jaynes, D. Knudsen, K. McWilliams, J. I. Moen, A. Spicher, J. Wu   +11 more
doaj   +1 more source

Strong Nonideal Electric Fields and Energy Dissipation Observed by MMS within Field-Aligned Current Layers in the Plasma Sheet of the Earth’s Magnetotail

Atmosphere, 2023
We report the MMS observations of the intense spikes of field-aligned current (FAC) produced by magnetic reconnection at the plasma sheet (PS) field lines.
Makar V. Leonenko, Elena E. Grigorenko, Lev M. Zelenyi   +2 more
doaj   +1 more source

DYNAMICS OF THE FIELD-ALIGNED CURRENTS DISTRIBUTION ASYMMETRY DURING SUBSTORMS IN THE EQUINOX SEASON

Solar-Terrestrial Physics, 2021
We continue to study the physical processes occurring during the August 17, 2001 magnetospheric storm by analyzing the dynamics of the intensity of field-aligned currents (FACs) in Iijima—Potemra Region 1 in the polar ionospheres of two hemispheres ...
V.V. Mishin, V.M. Mishin, M.A. Kurikalova   +2 more
doaj   +1 more source

Magnetotail reconnection: Current diversion and field‐aligned currents

Geophysical Research Letters, 1991
We have used a three‐dimensional resistive and compressible MHD code to study reconnection in a magnetotail configuration. The initial state is a two‐dimensional equilibrium with a northward magnetic field component Bz across the current sheet. Reconnection is initiated by applying a finite resistivity localized in the near‐Earth region with a finite ...
Manfred Scholer, Antonius Otto
openaire   +1 more source

Field‐aligned current distribution in the transition current system [PDF]

Journal of Geophysical Research: Space Physics, 2004
The interactions of coronal mass ejections with the Earth's magnetosphere are interesting because they often lead to extreme forcing of magnetospheric convection. Here we consider the initial interaction of a CME with the magnetosphere for the specific case in which there is a sharp increase in the dynamic pressure (interplanetary shock) that is ...
Belenkaya, Elena S., Alexeev, Igor I., Clauer, C. Robert   +2 more
openaire   +2 more sources

SwarmFACE: A Python package for field-aligned currents exploration with Swarm

Frontiers in Astronomy and Space Sciences, 2023
The SwarmFACE package utilizes magnetic field measurements by the Swarm satellites to study systems of field-aligned currents (FACs). Improvements of well-established techniques as well as novel single- and multi-satellite methods or satellite ...
Adrian Blagau, Adrian Blagau, Joachim Vogt   +2 more
doaj   +1 more source

South-north asymmetry of field-aligned currents in the magnetotail observed by Cluster [PDF]

, 2010
We statistically investigated features of the field-aligned current (FAC) distribution in plasma sheet boundary layers between 17 and 19 RE in the magnetotail using the curlometer technique to calculate the current from four-point magnetic field ...
Cheng, Z. W., Dandouras, I., Dunlop, M., Fazakerley, A., Grocott, A., Kistler, L. M., Lahiff, A. D., Lester, M., Liu, Z. X., Lucek, E., Lui, A. T. Y., Mouikis, C., Pu, Z. Y., Rème, H., Shen, C., Shi, J. K., Taylor, M. G. G. T., Torkar, K., Volwerk, M., Walsh, A. P., Zhang, T. L.   +20 more
core   +1 more source

Current‐voltage relationship in downward field‐aligned current region [PDF]

Journal of Geophysical Research: Space Physics, 2005
Field‐aligned electrons accelerated upward from the ionosphere to the magnetosphere are the principal charge carriers in the auroral downward field‐aligned current region. Current densities, typically of the order of a few μAm−2, are sustained by potential drops of several 100 V up to a few kV.
Alexandra P. Cran‐McGreehin, Andrew N. Wright   +1 more
openaire   +1 more source