Results 101 to 110 of about 11,853 (228)
Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract Based on high‐resolution measurements from NASA's Magnetospheric Multiscale mission (MMS), we present the first direct observation of an ion diffusion region (IDR) with high number density O+ ions within dayside magnetopause reconnection during the May 2024 superstorm. The O+ ion density reaches a high value of ∼3.3 cm−3.
Anxin Zhang +8 more
wiley +1 more source
Nonlinear Gyrokinetic Simulation of the Magnetosphere‐Ionosphere Feedback Coupling
Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract A nonlinear gyrokinetic simulation is applied to the magnetosphere‐ionosphere (M‐I) coupling system to investigate spontaneous growth of auroral structures and electron acceleration self‐consistently. Perturbations of electron density, potential and field‐aligned current in the auroral ionosphere develop through the feedback instability ...
T.‐H. Watanabe, K. Fujita, S. Maeyama
wiley +1 more source
Current system perspective of earth magnetosphere
International Journal of Innovative Research and Growth, 2022 Rani Ghuratia +2 more
openaire +1 more source
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract Understanding the interplay between micrometeoroid impacts and solar wind irradiation is crucial for interpreting lunar surface evolution. Using reactive molecular dynamics simulations and surface binding energy (SBE) analyses, this study investigates the coupled effects of these two dominant space weathering processes on lunar regolith ...
Ziyu Huang, Masatoshi Hirabayashi
wiley +1 more source
Revealing the Mechanisms of Heat Extremes Using an AI Enabled Diagnostic Framework
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract Heat extremes have become a major health hazard around the world. Understanding their mechanisms remains a major challenge because the physical drivers interact in a nonlinear way. Here we introduce a globally perturbed reforecast framework driven by the Neural general circulation model (NeuralGCM).
Longzhen Xiang +9 more
wiley +1 more source
A source of auroral electrons and the magnetospheric substorm current systems [PDF]
Journal of Geophysical Research: Space Physics, 2003 Auroral electrons are field‐aligned current carriers and thus changes of their flux are related to the magnetospheric substorm current systems. Therefore a study of processes associated with substorms can provide insight into a source of auroral electrons.
openaire +1 more source
The influence of quiet asymmetric magnetosphere on the cutoff rigidities of the main cone [PDF]
Some earlier studies show that cutoff rigidities of cosmic-ray particles in the model magnetospheric fields of internal and external sources have daily variations caused by asymmetry of the magnetic field due to the currents induced at the magnetopause ...
Danilova, O. A., Tyasto, M. I.
core +1 more source
A Physics‐Informed Neural Network Approach to the Gannon Storm
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract Extreme geomagnetic storms, such as the May 2024 Gannon event, pose significant risks to technological infrastructure, requiring robust forecasting models. Here, we apply Physics‐Informed Neural Networks (PINNs) to the Burton equation to model the storm's ring current dynamics by studying the temporal evolution of the SuperMAG SMR index during
M. Lacal +3 more
wiley +1 more source
Asymmetrically Distributed Kelvin‐Helmholtz Instability at Venusian Magnetosphere
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract The asymmetric distribution of Kelvin‐Helmholtz (KH) instability at Venusian ionopause is investigated using a multifluid model. Results show that KH instability distributes asymmetrically, preferentially developing in the −E (anti‐parallel to the interplanetary electric field) hemisphere.
Maodong Yan +7 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract The threefold daytime electron density increases, along with strong poleward meridional winds exceeding 200 m/s were captured by Sanya Incoherent Scatter Radar (SYISR) during the geomagnetic storm of 12 November 2025. The great ionospheric enhancements were extending to mid‐latitudes over 40° observed by total electron content (TEC) from ...
Qi Jiang +7 more
wiley +1 more source