Results 11 to 20 of about 179,377 (341)

Field-aligned currents in Saturn's northern nightside magnetosphere: Evidence for interhemispheric current flow associated with planetary period oscillations [PDF]

Journal of Geophysical Research: Space Physics, 2015
We investigate the magnetic perturbations associated with field-aligned currents observed on 34 Cassini passes over the premidnight northern auroral region during 2008.
Alexeev, II, Belenkaya, ES, Bunce, EJ, Coates, AJ, Cowley, SWH, Dougherty, MK, Hunt, GJ, Kalegaev, VV, Provan, G   +8 more
core   +3 more sources

Field-aligned currents in Saturn’s magnetosphere: Observations from the F-ring orbits

Journal of Geophysical Research: Space Physics, 2018
We investigate the azimuthal magnetic field signatures associated with high‐latitude field‐aligned currents observed during Cassini's F‐ring orbits (October 2016–April 2017).
Bunce, EJ, Cowley, SWH, Dougherty, MK, Hunt, GJ, Provan, G, Southwood, DJ   +5 more
core   +2 more sources

Models of field-aligned currents needful to simulate the substorm variations of the electric field and other parameters observed by EISCAT [PDF]

Annales Geophysicae, 1996
We have used the global numerical model of the coupled ionosphere-thermosphere-protonosphere system to simulate the electric-field, ion- and electron-temperature and -concentration variations observed by EISCAT during the substorm event of 25 March ...
M. A. Volkov, A. A. Namgaladze, A. A. Namgaladze   +2 more
doaj   +3 more sources

Online system for analyzing currents in the upper ionosphere according to Swarm satellite data

Solar-Terrestrial Physics, 2023
In this paper, we describe the TeslaSwarm online system [http://aleph.gcras.ru/teslaswarm] for visualizing field-aligned currents in the upper ionosphere, using data from Swarm low-orbit satellites.
Belov I. O., Soloviev A. A., Pilipenko V. A., Dobrovolskiy M. N., Bogoutdinov S. R., Kalinkin K. D.   +5 more
doaj   +1 more source

A Third Generation Field‐Aligned Current Model [PDF]

Journal of Geophysical Research: Space Physics, 2020
AbstractA new empirical model of field‐aligned currents in the Earth's ionosphere has been developed. This model is derived using magnetometer data from the CHAallenging Minisatellite Payload, Ø rsted, and Swarm satellite missions, which has created a database that spans more than 15 years.
Edwards, T., Weimer, D., Olsen, N., Lühr, H., Tobiska, W., Anderson, B.   +5 more
openaire   +4 more sources

Statistical Analysis of Bifurcating Region 2 Field-Aligned Currents Using AMPERE

Frontiers in Astronomy and Space Sciences, 2022
We present a statistical analysis of the occurrence of bifurcations of the Region 2 (R2) Field-Aligned Current (FAC) region, observed by the Active Magnetosphere and Planetary Electrodynamics Response Experiment (AMPERE).
H. K. Sangha , S. E. Milan , S. E. Milan , B. J. Anderson , H. Korth    +4 more
doaj   +1 more source

Sign-Singularity Analysis of Field-Aligned Currents in the Ionosphere

Atmosphere, 2021
Field-aligned currents (FACs) flowing in the auroral ionosphere are a complex system of upward and downward currents, which play a fundamental role in the magnetosphere–ionosphere coupling and in the ionospheric heating.
Giuseppe Consolini, Paola De Michelis, Igino Coco, Tommaso Alberti, Maria Federica Marcucci, Fabio Giannattasio, Roberta Tozzi   +6 more
doaj   +1 more source

Field-aligned and ionospheric currents [PDF]

Planetary and Space Science, 1975
Abstract Zmuda and Armstrong (1974) showed that the field-aligned currents consist of two pairs; one is located in the morning sector and the other in the evening sector. Our analysis of magnetic records from the TRIAD satellite suggests that in each pair the poleward field-aligned current is more intense than the equatorward current, a typical ratio
F. Yasuhara, Y. Kamide, S.-I. Akasofu
openaire   +1 more source

Next generation magnetic field measurements from low-earth orbit satellites enable enhanced space weather operations

Frontiers in Astronomy and Space Sciences, 2022
Large-scale current systems in the ionosphere and the magnetosphere are intimately controlled by the solar wind-magnetosphere interaction and the magnetosphere-ionosphere coupling.
Guan Le, Delores J. Knipp, Lutz Rastätter, Gang Lu, Dogacan Su Ozturk, James A. Slavin, Astrid Maute, Jeffrey Klenzing, Shasha Zou, Jared R. Espley, Michael Purucker, Mojtaba Akhavan-Tafti, Gang Kai Poh, Gang Kai Poh, Zihan Wang   +14 more
doaj   +1 more source

Multipoint Field‐Aligned Current Estimates With Swarm [PDF]

Journal of Geophysical Research: Space Physics, 2019
AbstractField‐aligned currents (FACs) are a key component of the magnetosphere‐ionosphere system, providing the transfer of energy and momentum between the distant collision‐free magnetospheric plasma and the collisional ionosphere. The European Space Agency's Swarm mission offers a unique opportunity to explore the FACs low‐altitude end by a broad ...
A. Blagau, J. Vogt
openaire   +2 more sources