Results 51 to 60 of about 20,985 (231)

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

Effects of Waves on the Spectral Anisotropy of the Transition Range in Solar Wind Turbulence

The Astrophysical Journal
In the transition range of the solar wind turbulence, the magnetic spectrum has been observed to be strongly anisotropic with respect to the local mean field. However, the generation mechanism of the anisotropy remains not well understood.
Hua Zhang, Xin Wang, Haochen Yuan
doaj   +1 more source

On the heliolatitudinal variation of the galactic cosmic-ray intensity. Comparison with Ulysses measurements [PDF]

Annales Geophysicae, 2003
We study the dependence of cosmic rays with heliolatitude using a simple method and compare the results with the actual data from Ulysses and IMP spacecraft.
G. Exarhos, G. Exarhos, X. Moussas
doaj   +1 more source

Observations of an extreme storm in interplanetary space caused by successive coronal mass ejections

, 2014
Space weather refers to dynamic conditions on the Sun and in the space environment of the Earth, which are often driven by solar eruptions and their subsequent interplanetary disturbances.
Bale, Stuart D., Farrugia, Charles J., Galvin, Antoinette B., Kajdič, Primož, Kilpua, Emilia K. J., Lavraud, Benoit, Liu, Ying D., Lugaz, Noé, Luhmann, Janet G., Möstl, Christian, Nitta, Nariaki V.   +10 more
core   +1 more source

Effects of the May 2024 Solar Storm on the Earth's Radiation Belts Observed by CALET on the International Space Station

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract In May 2024, extraordinary solar activity triggered a powerful solar storm, impacting Earth and producing the extreme geomagnetic storm of 10‐11 May, the most intense since 2003. This had significant effects on the magnetosphere, leading to the creation of a new long‐lasting component of relativistic electrons and to flux changes in the South ...
A. Ficklin, A. Bruno, L. Blum, N. Cannady, T. G. Guzik, R. Kataoka, K. Munakata, Y. Akaike, S. Torii   +8 more
wiley   +1 more source

Axial Flux Evolution of Small-scale Magnetic Flux Ropes from 0.06 to 10 au

The Astrophysical Journal Letters
Small-scale magnetic flux ropes (SMFRs) fill much of the solar wind, but their origin and evolution are debated. We apply our recently developed, improved Grad–Shafranov algorithm for the detection and reconstruction of SMFRs to data from Parker Solar ...
Hameedullah Farooki, Jeongwoo Lee, Francesco Pecora, Haimin Wang, Hyomin Kim   +4 more
doaj   +1 more source

A Neural Network Model of Equatorial Electric Field Structures in the Inner Magnetosphere

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Enabled by state‐of‐the‐art electric field measurements from the Van Allen Probes and careful calibration of the high‐quality data, we developed the first machine‐learning based inner‐magnetosphere electric field model, which covers L = 2.5–6.0 within 20° ${}^{\circ}$ around the magnetic equator.
M. Hua, S. Tian, J. Bortnik, D. Ma, Y. Wang, L. R. Lyons, J. R. Wygant   +6 more
wiley   +1 more source

Strong ionospheric field‐aligned currents for radial interplanetary magnetic fields [PDF]

Journal of Geophysical Research: Space Physics, 2014
AbstractThe present work has investigated the configuration of field‐aligned currents (FACs) during a long period of radial interplanetary magnetic field (IMF) on 19 May 2002 by using high‐resolution and precise vector magnetic field measurements of CHAMP satellite.
Wang, H., Lühr, H., Shue, J., Frey, H., Kervalishvili, G., Huang, T., Cao, X., Pi, G., Ridley, A.   +8 more
openaire   +5 more sources

Dynamical evolution of interplanetary magnetic fields and flows between 0.3 AU and 8.5 AU: Entrainment [PDF]

, 1983
The radial evolution of interplanetary flows and associated magnetic fields between 0.3 AU and 8.5 was analyzed using data from Helios 1 and Voyager 1, respectively.
Burlaga, L. F., Rosenbauer, H., Schwenn, R.   +2 more
core   +2 more sources

Evaluation of COSMIC‐2 Satellite Data for foF2 and hmF2 Against Ground‐Based Ionosondes and the PyIRI (2020) Model Across Middle to Low Latitudes

Space Weather, Volume 24, Issue 2, February 2026.
Abstract This study presents a comprehensive evaluation of COSMIC‐2 satellite‐derived ionospheric peak parameters (foF2 and hmF2) against ground‐based ionosonde observations and a comparative analysis with PyIRI (2020) model estimates across middle to low latitudes for the period 2020–2024.
Ephrem Beshir Seba, Carla Jacobs, Matthieu Melcot, Stefaan Poedts   +3 more
wiley   +1 more source