Results 81 to 90 of about 471 (192)

Hydrogen‐Bond Symmetrization in Hydrous Aluminous Silica Enhances Deep‐Mantle Water Cycle

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract (Al, H)‐bearing CaCl2‐type SiO2 serves as a key water carrier in Earth's deep‐water cycle. Evolution of hydrogen‐bond symmetrization in this phase was measured up to 62 GPa and 800 K by synchrotron infrared and Raman spectroscopy, and X‐ray diffraction.
Chaoshuai Zhao, Zhu Mao, Yingxin Yu, Ningyu Sun, Yunhua Fu, Jianbo Zhang, Hanns‐Peter Liermann, Renbiao Tao, Takayuki Ishii   +8 more
wiley   +1 more source

IMF By‐Controlled Dawn–Dusk and Hemispheric Asymmetries of Kelvin–Helmholtz Waves and Reconnection Geometry Under Negative Dipole Tilt

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Along with magnetic reconnection, Kelvin‐Helmholtz (KH) waves are the main mechanisms controlling the solar wind‐magnetosphere interaction, enabling plasma transport into the magnetosphere due to secondary reconnection, diffusion and wave‐particle interactions.
L. Holappa, K. Nykyri, J. Laitinen, B. Burkholder   +3 more
wiley   +1 more source

A new paleomagnetic constraint on the duration of a twin caldera-forming eruption sequence: a potential solution to an enduring problem in decoding >VEI 7 eruption timescales

Earth, Planets and Space
New paleomagnetic results from the twin caldera-forming Mamaku–Ohakuri eruption deposits in the Taupō Volcanic Zone of New Zealand show that the entire pyroclastic sequence accumulated within a geomagnetic excursion event.
Darren M. Gravley, Takeshi Hasegawa, Nobutatsu Mochizuki, Chie Kusu, Makoto Okada   +4 more
doaj   +1 more source

Evolution of Reversed Electron Energy Spectra in Earth’s Radiation Belts Observed by CIRBE

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Following an intense geomagnetic storm (Dst < −150 nT) on 5 November 2023, electron fluxes in the outer radiation belt were reduced by more than three orders of magnitude at energies below ∼700 keV while they were enhanced at ∼1–3 MeV, leading to reversed energy spectra.
Ziye Zhang, Xinlin Li, Zheng Xiang, Declan O’Brien, Theodore Sarris, Misty Chien, Wesley Martin   +6 more
wiley   +1 more source

Early Eocene Compressional Deformation in the Northeastern Tibetan Plateau Recorded by Magnetic Fabrics of the Longzhong Basin

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Intracontinental deformation records how early Eocene India–Asia collisional stress propagated into continental interiors. How rapidly compression reached the far field, and whether coeval Paleo‐Pacific slab dynamics contributed, remain debated. The Longzhong Basin, ∼1,900 km north of the collisional zone, provides a key test.
Zhantao Feng, Niels Meijer, Weilin Zhang, Guillaume Dupont‐Nivet, Wanlong Xu, Tao Zhang, Jinbo Zan, Yibo Yang, Xiaomin Fang   +8 more
wiley   +1 more source

Inertial Forces Reproduce the Observed Variations of the Frequency of Geomagnetic Reversals

Albanian Journal of Natural and Technical Sciences
Understanding the geodynamo is a complex endeavor that heavily relies on advanced numerical modeling. Current magnetohydrodynamic (MHD) models, designed to replicate its behavior, operate within parameter regimes that are significantly removed from the ...
Klaudio Peqini
doaj   +1 more source

Modeling Storm‐Time Post‐Midnight Equatorial Plasma Bubbles With SAMI3‐WACCMX: Impacts of Neutral Winds, Thermospheric Composition, and Atmospheric Waves

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract This study investigates the roles of neutral winds, composition and atmospheric waves in storm‐time post‐midnight equatorial plasma bubble (EPB) development using the coupled SAMI3‐WACCMX model. Simulations reveal the formation of post‐midnight EPBs extending beyond 1,500 km in altitude and persisting into the post‐sunrise period.
Min‐Yang Chou, J. D. Huba, Jack Wang, Jia Yue, Maksym Petrenko   +4 more
wiley   +1 more source

Oxygen Pickup Acceleration in the Plasma Mantle Associated With Traveling Flux‐Rope Structures

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract It is well known that, in the high‐altitude cusp and mantle regions, ionospheric‐origin outflowing oxygen (O+) ions are often energized through non‐adiabatic processes, among which cyclotron resonance is considered a major mechanism. Here, based on Cluster observations, we present evidence that pickup acceleration also operates as a non ...
H. Koike, M. Yamauchi, S. Taguchi, H. Nilsson, I. Dandouras   +4 more
wiley   +1 more source

Fifty-year investigation of the correlation between the geomagnetic field and climate

地球与行星物理论评
After 50 years of research on the correlation between the geomagnetic field and climate, we have gained a deeper understanding that the regulation of climate by geomagnetic field changes is far more complex than previously imagined.
Yuqi Wang, Fei He, Yong Wei, Zhaojin Rong, Jiawei Gao, Weidong Gu, Yaochen Yue, Xu Zhou, Limei Yan, Kai Fan   +9 more
doaj   +1 more source

Near‐Field Acoustic and Gravity Wave Modes in the Ionosphere Triggered by Ground Motion and Tsunami During the 2024 Mw7.4 Hualien Earthquake

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 18, 28 September 2026.
Abstract The interaction between the atmosphere and other components of the Earth system, such as the solid Earth and the oceans, remains an open and active area of research. In particular, the dynamic response of the ionosphere to forcing from below, such as earthquakes and tsunamis, is not yet fully understood.
Oluwasegun M. Adebayo, Lucie Rolland, Esfhan A. Kherani, Tung‐Yuan Hsiao, Loren C. Chang, Alexandre A. Pimenta, Virginia A. Klausner   +6 more
wiley   +1 more source