Results 71 to 80 of about 9,101 (234)

Evolution of Ionospheric Ion Upflow Flux During the April 2023 Geomagnetic Storm

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract We study the impact of the evolving magnetosphere‐ionosphere‐thermosphere system on upward ion fluxes during the 23–24 April 2023 geomagnetic storm. This storm has a “double‐dip” structure where two southward IMF Bz ${\mathrm{B}}_{z}$ periods cause two dips in the SYM‐H index.
Grace Kwon, Shasha Zou, Marc Hairston, Hu Sun, Maria Smirnova   +4 more
wiley   +1 more source

conjugate_map: A Python package for calculating geomagnetic conjugate points

SoftwareX
The Earth’s magnetic field is dominated by the dipole moment, which magnetically connects the northern and southern hemispheres. Because ionospheric and magnetospheric plasmas preferentially move along magnetic field lines, local processes that affect ...
Kristina Collins, Michael Hartinger, Kelsey Zimmerman, Michelle Salzano, Angeline Burrell   +4 more
doaj   +1 more source

Origin of Dawnside Subauroral Polarization Streams During Major Geomagnetic Storms

AGU Advances, 2022
Solar eruptions cause geomagnetic storms in the near‐Earth environment, creating spectacular aurorae visible to the human eye and invisible dynamic changes permeating all of geospace.
Dong Lin, Wenbin Wang, Viacheslav G. Merkin, Chaosong Huang, Meers Oppenheim, Kareem Sorathia, Kevin Pham, Adam Michael, Shanshan Bao, Qian Wu, Yongliang Zhang, Michael Wiltberger, Frank Toffoletto, John Lyon, Jeffrey Garretson   +14 more
doaj   +1 more source

Climatology of Medium‐Scale Traveling Ionospheric Disturbances Over Continental US Using GNSS TEC From 2012 to 2023

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Medium‐Scale Traveling Ionospheric Disturbances (MSTIDs) have long been a subject of interest in ionospheric research. However, their spatiotemporal variability across regions, local times, seasons, and solar cycles is very complicated and remains not well established.
Jing Liu, Shun‐Rong Zhang, Anthea J. Coster, Philip J. Erickson, Hanli Liu   +4 more
wiley   +1 more source

Outer Radiation Belt Dynamics During the October 2012 Storm Revisited: Rapid Inward Radial Transport From a Dynamic Outer Boundary

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Earth's outer radiation belt electron flux is highly variable and can be enhanced by over an order of magnitude over timescales less than one day, as observed during the October 2012 storm. Previous studies of this storm (e.g., Reeves et al., 2013, https://doi.org/10.1126/science.1237743) have invoked local acceleration to explain this ...
L. G. Ozeke, I. R. Mann, L. Olifer, S. K. Morley, H. E. Spence   +4 more
wiley   +1 more source

Global MHD Simulations: Magnetosphere–Ionosphere Coupling Dependence on Conductance Model

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Eighty‐five geomagnetic storms were simulated with the space weather modeling framework Geospace model using two different ionospheric conductance models. One set used the legacy conductances within the Ridley ionosphere model, while the other set used the newly developed conductance model for extreme events conductance model.
T. I. Pulkkinen, P. Dredger, M. Liemohn, A. Ridley, G. Tóth, D. Welling, Q. Al Shidi, A. Brenner, S. Hill, A. Mukhopadhyay   +9 more
wiley   +1 more source

A GPU-enabled implicit Finite Volume solver for the ideal two-fluid plasma model on unstructured grids

, 2018
This paper describes the main features of a pioneering unsteady solver for simulating ideal two-fluid plasmas on unstructured grids, taking profit of GPGPU (General-purpose computing on graphics processing units).
Aissa, Mohamed Hassanine, Asensio, Isaac Alonso, Laguna, Alejandro Alvarez, Lani, Andrea, Ozak, Nataly, Poedts, Stefaan   +5 more
core   +2 more sources

Evaluating Multipoint Sampling of Global‐Scale High‐Latitude Electrodynamics by the Geospace Dynamics Constellation

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract The Geospace Dynamics Constellation (GDC) mission aims to investigate the dynamic coupling between the magnetosphere, ionosphere, and thermosphere by resolving key spatiotemporal processes at scales ranging from local to global. A key aspect is GDC's ability to reconstruct hemispheric‐scale high‐latitude electrodynamics with comprehensive ...
J. S. Shim, R. M. Robinson, K. Garcia‐Sage, D. E. Rowland, F. Di Mare, J. Klenzing, G. Liu   +6 more
wiley   +1 more source

Resolving the generation mechanisms and electrodynamical effects of Medium Scale Traveling Ionospheric Disturbances (MSTIDs)

Frontiers in Astronomy and Space Sciences
The term “Medium-Scale Traveling Ionospheric Disturbances” is used to describe a number of different propagating phenomena in ionospheric plasma density with a scale size of hundreds of km.
Jeff Klenzing, Kate Zawdie, Elvira Astafyeva, Anna Belehaki, Meghan Burleigh, Angeline G. Burrell, Cosme A. O. B. Figueiredo, Nathaniel A. Frissell, Weizheng Fu, Dustin Hickey, Joe Huba, Pavel Inchin, Stephen R. Kaeppler, Viswanathan Lakshmi Narayanan, Mani Sivankandan, Jonathon M. Smith, Jonathon M. Smith, Chao Xiong, Tatsuhiro Yokoyama, Matt Zettergren, Shun-Rong Zhang   +20 more
doaj   +1 more source

Thermospheric Neutral Density Variation During the “SpaceX” Storm: Implications From Physics‐Based Whole Geospace Modeling

Space Weather, 2022
The Starlink satellites launched on 3 February 2022 were lost before they fully arrived in their designated orbits. The loss was attributed to two moderate geomagnetic storms that occurred consecutively on 3–4 February.
Dong Lin, Wenbin Wang, Katherine Garcia‐Sage, Jia Yue, Viacheslav Merkin, Joseph M. McInerney, Kevin Pham, Kareem Sorathia   +7 more
doaj   +1 more source