Results 61 to 70 of about 334,315 (204)

Near-Earth Magnetic Field Effects of Large-Scale Magnetospheric Currents [PDF]

, 2016
Magnetospheric currents play an important role in the electrodynamics of near- Earth space. This has been the topic of many space science studies. Here we focus on the magnetic fields they cause close to Earth. Their contribution to the geomagnetic field
Le, Guan, Guan Le, Lühr, Hermann, Chao Xiong, Nils Olsen, Luehr, Hermann, Hermann Lühr, Xiong, Chao, Olsen, Nils, Le , Guan   +9 more
core   +1 more source

Geomagnetic Disturbances Due To Neutral‐Wind‐Driven Ionospheric Currents

Space Weather
Previous simulation efforts on geomagnetic disturbances (GMDs) and geomagnetically induced currents (GICs) mostly rely on global magnetohydrodynamics models, which explicitly calculate the magnetospheric currents and carry certain assumptions about the ...
Cheng Sheng, Yue Deng, Daniel T. Welling, Steven K. Morley   +3 more
doaj   +1 more source

Is Magnetic Reconnection Dominantly Spatially or Temporally Variable: First Results From TRACERS

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract The Tandem Reconnection And Cusp Electrodynamics Reconnaissance Satellites (TRACERS) small explorer mission was designed to: Determine whether magnetopause reconnection is primarily spatially or temporally variable for a range of solar wind conditions. Observations from the Analyzers for Cusp Ions (ACIs) on the two TRACERS spacecrafts are used
S. A. Fuselier, C. A. Kletzing, D. M. Miles, S. R. Bounds, J. B. Bonnell, I. H. Cairns, H. Cao, J. D. Furman, R. G. Gomez, K. Goodrich, J. S. Halekas, G. Hospodarsky, Y. Lin, J. LaBelle, K. LLera, J. Mukherjee, M. Øieroset, S. M. Petrinec, R. Roglans, O. Santolik, R. Strangeway, K. J. Trattner, S. K. Vines   +22 more
wiley   +1 more source

Distribution of Region 1 and 2 currents in the quiet and substorm time plasma sheet from THEMIS observations

Geophysical Research Letters, 2016
Although Earth's Region 1 and 2 currents are related to activities such as substorm initiation, their magnetospheric origin remains unclear. Utilizing the triangular configuration of THEMIS probes at 8–12 RE downtail, we seek the origin of nightside ...
Jiang Liu, V. Angelopoulos, Xiangning Chu, R. L. McPherron   +3 more
doaj   +1 more source

ELFIN Statistics of Electron Strong Diffusion in the Inner Magnetosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract Pitch‐angle diffusion of trapped electrons driven by whistler‐mode and EMIC waves and by field‐line curvature scattering (FLCS) plays an important role in energetic and relativistic electron loss from the inner magnetosphere. The strong diffusion regime, characterized by a nearly full loss cone, rarely occurs, but is expected to account for a ...
Emile Saint‐Girons, Didier Mourenas, Anton V. Artemyev, Xiao‐Jia Zhang, Vassilis Angelopoulos   +4 more
wiley   +1 more source

Current flow in pulsar magnetospheres

The Astrophysical Journal, 1976
When particle flow is mainly outward through the light cylinder of a rotating pulsar magnetosphere, the resulting current flow leads to very large potential drops along field lines wherever $Omega$xB vanishes (as suggested by Holloway). These occur no matter what the sign of the charge above the magnetic polar cap. For fast pulsars such a gap potential
A. Cheng, M. Ruderman, P. Sutherland
openaire   +1 more source

A Data‐Driven Model of the Geomagnetic Storm Recovery Phase

Space Weather, Volume 24, Issue 11, November 2026.
Abstract The recovery phase of geomagnetic storms poses a significant challenge for accurate space weather forecasting. Traditional models based on a constant decay rate fail to capture its prolonged and variable duration, leading to uncertainties in predicting impacts on technological systems.
G. Consolini, M. Lacal, P. De Michelis, S. Benella, E. Consolini, M. Piersanti   +5 more
wiley   +1 more source

Corotation-driven magnetosphere-ionosphere coupling currents in Saturn’s magnetosphere and their relation to the auroras [PDF]

Annales Geophysicae, 2003
Abstract. We calculate the latitude profile of the equatorward-directed ionospheric Pedersen currents that are driven in Saturn’s ionosphere by partial corotation of the magnetospheric plasma. The calculation incorporates the flattened figure of the planet, a model of Saturn’s magnetic field derived from spacecraft flyby data, and angular velocity ...
Cowley, S. W. H., Bunce, E. J.
openaire   +5 more sources

An electric circuit model of the Earth’s polar electrojets and field-aligned currents for the estimation of magnetospheric magnetic field from along-track Swarm magnetic data

Earth, Planets and Space, 2022
This study deals with the analysis of Swarm vector magnetic data in order to create a circuit model of electric currents flowing in the Earth’s polar ionosphere and the inner magnetosphere.
Zdeněk Martinec, Jakub Velímský
doaj   +1 more source

The May 2024 Storm: The Cusps and Dayside Magnetopause in Simulated Soft X‐Rays

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The coronal mass ejection (CME) arriving at Earth on 10 May 2024 caused the most intense geomagnetic storm in the last two decades, resulting in highly unusual cusp and magnetopause dynamics. We simulate soft X‐Ray emission due to solar wind charge exchange with exospheric neutrals to image the global dayside dynamics, focusing on the impact ...
J. Ng, L.‐J. Chen, B. Burkholder, D. Sibeck, F. S. Porter, K. H. Pham, V. G. Merkin, H. Connor, J. W. Bonnell, S. Petrinec, Y. Zou, B. Alterman, G. Cucho‐Padin   +12 more
wiley   +1 more source