Results 61 to 70 of about 232 (164)

Dawn‐Side Anomaly in Sudden Geomagnetic Field Responses to Solar Wind Pressure Discontinuities During the 10 May and 10 October 2024 Geomagnetic Storms

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Interactions of solar wind dynamic pressure (SWDP) discontinuities with Earth's magnetosphere cause geomagnetic Sudden Commencements (SCs). Typically, positive/negative SCs occur at low latitudes due to enhancements/reductions in SWDP.
Deeksha Rai, S. Tulasi Ram, B. Nilam, D. M. Oliveira, B. Remya, Anil Raghav, D. Chakrabarty, Abhishek Kumar, Shivam Parashar, Vipin K. Yadav, A. P. Dimri   +10 more
wiley   +1 more source

Origin of the cusp Birkeland currents

Geophysical Research Letters, 1989
We argue that the cusp‐region field‐aligned (Birkeland) currents, first reported by Iijima and Potemra [1976b], arise from the motion of reconnected open field lines shortening over the dayside magnetopause. Initially, field tension is dominant so the open field lines have a significant east/west component to their motion.
openaire   +1 more source

Observations of large‐scale Birkeland currents with Viking

Geophysical Research Letters, 1987
The Viking spacecraft carries a high‐resolution Magnetic Field Experiment that acquires approximately 53 vector samples per second. It has four automatically switchable ranges from ±1024 to ±65,536 nT (full scale) and resolutions commensurate with a 13 bit A/D converter in each range (±0.125 to ±8 nT).
T. A. Potemra, L. J. Zanetti, R. E. Erlandson, P. F. Bythrow, G. Gustafsson, M. H. Acuña, R. Lundin   +6 more
openaire   +1 more source

Validation of AMPERE Magnetic Perturbations Using Swarm

Space Weather
The Active Magnetosphere and Planetary Electrodynamics Response Experiment (AMPERE) provides continuous global maps of Birkeland currents, using magnetic field perturbations (dB) obtained by calibrating and detrending data from engineering magnetometers ...
A. T. Chartier, J. Rodriguez‐Zuluaga, C. L. Waters, B. J. Anderson, S. K. Vines   +4 more
doaj   +1 more source

From everywhere all at once: Several colonization routes available to Svalbard in the early Holocene. [PDF]

Ecol Evol, 2023
Brožová V, Bolstad JS, Seregin AP, Eidesen PB.   +3 more
europepmc   +1 more source

Local Mapping of Polar Ionospheric Electrodynamics. [PDF]

J Geophys Res Space Phys, 2022
Laundal KM, Reistad JP, Hatch SM, Madelaire M, Walker S, Hovland AØ, Ohma A, Merkin VG, Sorathia KA.   +8 more
europepmc   +1 more source

Analysis of Blue Corona Discharges at the Top of Tropical Thunderstorm Clouds in Different Phases of Convection. [PDF]

Geophys Res Lett, 2022
Dimitriadou K, Chanrion O, Neubert T, Protat A, Louf V, Heumesser M, Husbjerg L, Köhn C, Østgaard N, Reglero V.   +9 more
europepmc   +1 more source

Survey on the Developments of Unmanned Marine Vehicles: Intelligence and Cooperation. [PDF]

Sensors (Basel), 2023
Bae I, Hong J.
europepmc   +1 more source

Interferometric Study of Ionospheric Plasma Irregularities in Regions of Phase Scintillations and HF Backscatter. [PDF]

Geophys Res Lett, 2022
Spicher A, LaBelle J, Bonnell JW, Roglans R, Moser C, Fuselier SA, Bounds S, Clausen LBN, Di Mare F, Feltman CA, Jin Y, Kletzing C, Miloch WJ, Moen JI, Oksavik K, Sawyer R, Takahashi T, Yeoman TK.   +17 more
europepmc   +1 more source

A new theory of sources of Birkeland currents [PDF]

, 1984
An approach to collisionless plasma shows the existence of current orthogonal to B along the low latitude boundary layer of the magnetosphere driven by electric field which is orthogonal to both B and the layer. In this case relationship P perpendicular + (sq B/8 pi) - (sq epsilon E perpendicular/8 pi) = constant holds on a line orthogonal to B and the
openaire   +1 more source