Results 141 to 150 of about 3,908 (245)
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract Using Van Allen Probes data (2013–2015), we report that highly oblique chorus waves frequently occur in low‐density regions where fpe/fce≈3 ${f}_{\text{pe}}/{f}_{\text{ce}}\approx 3$. These waves exhibit an electric‐to‐magnetic energy ratio PE/c2PB>0.5 $\sqrt{{P}_{\mathrm{E}}/{c}^{2}{P}_{\mathrm{B}}} > 0.5$, much higher than the typical <0.1 ${
Lixian Yang +10 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract The large‐scale traveling ionospheric disturbances (LSTIDs) over the Asian‐Pacific sector during the 10–11 May 2024 superstorm are investigated using ionosonde observation and simulation from a whole geospace model—Multiscale Atmosphere Geospace Environment (MAGE), which fully couples multiple magnetosphere, ionosphere and thermosphere models.
Tianyang Hu +6 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract Mercury's proximity to the Sun results in the lowest average Alfvénic Mach number in the upstream solar wind compared to any other planet. Under extreme conditions, the upstream Alfvén speed can exceed the solar wind speed, resulting in a sub‐Alfvénic interaction in which standing Alfvén wings form.
Charles F. Bowers, Xianzhe Jia
wiley +1 more source
Solar-cycle variations of interaction regions: In-ecliptic observations from 1 to 5 AU [PDF]
Geofísica Internacional, 2000 We study a combined set of 97 interaction regions detected by Pioneers 10 and 11, Voyagers 1 and 2, and Ulysses from 1 to 5 AU during their respective journeys to Jupiter at different phases of the solar cycle.
J. Américo González-Esparza
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Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract Mercury experiences the most intense and variable solar wind (SW) conditions in the solar system due to its close, eccentric orbit about the Sun. In addition to variation driven by coronal source and solar cycle, the SW arriving at Mercury varies periodically as the planet's heliocentric distance changes by over 50% per orbit.
Ryan M. Dewey +17 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract A new proton radiation belt was identified during the geomagnetic superstorm of 10–11 May 2024. To investigate its origin, we use an MHD‐test particle simulation to model solar energetic proton (SEP) trapping and the evolution of the initial trapped proton population during the storm.
Murong Qin +10 more
wiley +1 more source
Open Magnetic Field Lines Partition Auroral Oval Segments Into Transpolar Arcs
Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract Transpolar arcs (TPAs) are auroral structures spanning the polar cap. One type appears in conjugate hemispheres and is thought to be located on closed field lines, but how closed flux enters the open polar cap remains debated. We address this using observation and simulation of conjugate TPAs after an interplanetary magnetic field (IMF) By ...
Xin‐Ming Chen +14 more
wiley +1 more source
Near-Earth Interplanetary Coronal Mass Ejections Since January 1996 [PDF]
This list of near-Earth interplanetary coronal mass ejections (ICMEs), believed to be the interplanetary manifestations of the coronal mass ejections seen near the Sun by coronagraphs, is based on, and updated from, Cane and Richardson, Interplanetary ...
Cane, Hilary, Richardson, Ian
core +1 more source
Physics‐Informed Neural Networks for Modeling the Martian Induced Magnetosphere
Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract Understanding the magnetic field environment around Mars and its response to upstream solar wind conditions provide key insights into the processes driving atmospheric ion escape. To date, global models of Martian induced magnetosphere have been exclusively physics‐based, relying on computationally intensive simulations. For the first time, we
Jiawei Gao +8 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract Geomagnetic disturbances in polar regions can be decomposed into two main patterns: the Disturbance Polar (DP) 1 and 2. How their relative contribution reshapes global current system remains unclear. In this study, we classified substorms from 2010 to 2022 into weak and strong DP‐2 events based on the ratio of the eastward to westward auroral ...
Jiarong Ma +5 more
wiley +1 more source