Results 11 to 20 of about 22,307 (216)

Field-aligned currents in the magnetosphere

open access: yesGeofísica Internacional, 1991
Las corrientes alineadas con el campo en la magnetosfera fluyen en todas partes, no s6lo a altas 1"-titudes sino también a medianas y bajas. Sin embargo, su detecci6n con satcHites solo ha sido posible en la región por encima de las zonas aurorales.
N. Fukushima
doaj   +1 more source

COMPASS: A New COnductance Model Based on PFISR And SWARM Satellite Observations

open access: yesSpace Weather, 2022
Ionospheric conductance plays a crucial and active role in magnetosphere‐ionosphere‐thermosphere coupling processes. Despite its importance, direct global observations of conductance are unavailable.
Zihan Wang, Shasha Zou
doaj   +1 more source

Storm time field-aligned currents and magnetosphere-ionosphere coupling process

open access: yes地球与行星物理论评, 2022
Field aligned currents (FACs), also known as Birkland current, are flowing along the magnetic field line between the ionosphere and magnetosphere. They play an essential role in transferring mass, energy, and momentum from the magnetosphere to the ...
Hui Wang
doaj   +1 more source

Determination of Auroral Electrodynamic Parameters From AMPERE Field‐Aligned Current Measurements

open access: yesSpace Weather, 2021
We calculate high latitude electrodynamic parameters using global maps of field‐aligned currents from the Active Magnetosphere and Planetary Response Experiment (AMPERE).
R. M. Robinson   +4 more
doaj   +1 more source

Kelvin-Helmholtz Vortices as an Interplay of Magnetosphere-Ionosphere Coupling

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The solar wind-magnetosphere interaction drives diverse physical processes on the flanks of Earth’s magnetopause, and in turn these processes couple to the ionosphere.
K.-J. Hwang   +13 more
doaj   +1 more source

Determination of vertical profiles of shell currents in the ionosphere [PDF]

open access: yesAnnales Geophysicae
In previous works, we found Euler potentials for the combined magnetic field of Earth's dipole, field-aligned currents, ring current, and the magnetopause surface currents (represented by Dungey's term) in the magnetosphere.
E. Romashets, M. Vandas
doaj   +1 more source

Filamentary Alfvénic structures excited at the edges of equatorial plasma bubbles [PDF]

open access: yesAnnales Geophysicae, 2007
Recent observations performed by the French DEMETER satellite at altitudes of about 710 km suggest that the generation of equatorial plasma bubbles correlates with the presence of filamentary structures of field aligned currents carried by Alfvén ...
R. Pottelette   +4 more
doaj   +1 more source

On the role of neutral flow in field-aligned currents [PDF]

open access: yesAnnales Geophysicae, 2018
In this brief note we explore the role of the neutral atmosphere in magnetosphere–ionosphere coupling. We analyze momentum balance in the ion rest frame to form hypotheses regarding the role of neutral momentum in the lower ionosphere during ...
A. J. Mannucci   +4 more
doaj   +1 more source

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

open access: yesFrontiers 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   +2 more
doaj   +1 more source

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

open access: yesEarth, 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   +3 more
doaj   +1 more source

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