Results 81 to 90 of about 5,979 (206)

Explicit IMF $B_y$-effect maximizes at subauroral latitudes (Dedicated to the memory of Eigil Friis-Christensen)

, 2019
The most important parameter in the coupling between solar wind and geomagnetic activity is the $B_z$-component of the interplanetary magnetic field (IMF).
Gopalswamy, Nat, Holappa, Lauri, Mursula, Kalevi   +2 more
core   +1 more source

Predicting Dual‐Satellite Ionospheric Radial Currents From Single‐Satellite Observations With a BiLSTM Model

Space Weather, Volume 24, Issue 1, January 2026.
Abstract Ionospheric radial currents (IRC) can be derived using two methodologies: (a) the single‐satellite approach: Single‐IRC is deduced from magnetic field data of a single satellite (Swarm‐A); (b) the dual‐satellite approach: Dual‐IRC is calculated by coordinated magnetic field measurements of a pair of satellites (Swarm‐A and ‐C).
Hao Xia, Hui Wang, Kedeng Zhang, Ming Wang   +3 more
wiley   +1 more source

Investigation of electrical currents in the auroral ionosphere [PDF]

Two papers are presented on the investigation of electrical currents in the auroral ionosphere: (1) The Relationship Between Field-Aligned Current Carried by Suprathermal Electrons, and the Auroral Arc; and (2) Ionospheric Electrical Currents in the Late
Arnoldy, R. L.
core   +1 more source

Magnetosphere-Ionosphere Coupling Through E-region Turbulence 1: Energy Budget

, 2011
During periods of intense geomagnetic activity, strong electric fields and currents penetrate from the magnetosphere into high-latitude ionosphere where they dissipate energy, form electrojets, and excite plasma instabilities in the E-region ionosphere ...
Amm, Ashrafi, Bahcivan, Bahcivan, Balsley, Buchert, Buneman, Cohen, Crochet, D'Angelo, Dimant, Dimant, Dimant, Dimant, Dimant, Dimant, Erukhimov, Farley, Farley, Fejer, Fontenla, Foster, Fukao, Gogoberidze, Guild, Gurevich, Hamza, Hamza, Hoh, John, Kagan, Kagan, Kelley, Koepke, Kudeki, Landau, Liperovsky, M. M. Oppenheim, Maeda, Merkin, Merkin, Merkin, Milikh, Milikh, Ober, Oppenheim, Pfaff, Pfaff, Pfaff, Pfaff, Providakes, Raeder, Raeder, Robinson, Robinson, Rogister, Rose, Schlegel, Schunk, Siscoe, St.-Maurice, St.-Maurice, St.-Maurice, St.-Maurice, Stauning, Vanhamäki, Wahlund, Wang, Williams, Winglee, Y. S. Dimant   +70 more
core   +1 more source

Large regional variability in geomagnetic storm effects in the auroral zone. [PDF]

Sci Rep, 2023
Kärhä O, Tanskanen EI, Vanhamäki H.
europepmc   +1 more source

Specifics of magnetotelluric studies in Antarctica

Записки Горного института
One of the priority areas of scientific research in Antarctica is the study of its deep structure. Most of the continent is covered with a thick ice sheet, so the main geoscientific data are acquired using geophysical methods, among which magnetotelluric
Tatyana V. Davydkina, Andrei A. Yankilevich, Anna N. Naumova   +2 more
doaj  

Investigation of Space Weather Effects by Swarm Magnetic Field Data: The SFAC Index

Geophysical Research Letters
The three Swarm satellites provide an optimum, low Earth orbit (LEO) and multi‐spacecraft platform, to explore for the first time the local correlation between field‐aligned currents (FACs), auroral electrojets, and magnetic perturbations at the Earth's ...
Octav Marghitu, Adrian Blăgău, Vlad Constantinescu, Malcolm W. Dunlop, Guram Kervalishvili, Jan Rauberg, Jesper W. Gjerloev   +6 more
doaj   +1 more source

Unveiling the combined effects of neutral dynamics and electrodynamic forcing on dayside ionosphere during the 3-4 February 2022 "SpaceX" geomagnetic storms. [PDF]

Sci Rep, 2023
Kakoti G, Bagiya MS, Laskar FI, Lin D.
europepmc   +1 more source

Preliminary results of measurements of sq currents and the equatorial electrojet near peru [PDF]

Measurement of electric current, magnetic field, and electron density in ionosphere using Nike-Apache sounding ...
Cahill, L. J., Jr., Maynard, N. C.
core   +1 more source

Scaling in long term data sets of geomagnetic indices and solar wind ϵ as seen by WIND spacecraft [PDF]

, 2003
We study scaling in fluctuations of the geomagnetic indices (AE, AU, and AL) that provide a measure of magnetospheric activity and of the ε parameter which is a measure of the solar wind driver.
Angelopoulos, B. Hnat, Chang, Chapman, Consolini, Consolini, Edwards, Freeman, G. Rowlands, Hnat, Hnat, Hnat, Katsev, Kovács, Lepping, Lui, M. P. Freeman, Mantegna, N. W. Watkins, Ogilvie, S. C. Chapman, Sitnov, Takalo, Takalo, Tsurutani, Ukhorskiy, Uritsky, Vörös, Watkins   +28 more
core   +3 more sources