Results 171 to 180 of about 32,667 (253)

The Long‐Term Trend of the Equatorial Electrojet Over Indian Sector

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The upper‐atmosphere cooling trend is well documented, while the long‐term trend of the ionospheric electrodynamics remains poorly understood. Using two geomagnetic observation data sets over Indian sector, we analyze the long‐term trend of the monthly‐median equatorial electrojet (EEJ) in 1967–2015 after removing the solar activity and ...
Ruilong Zhang, Xu Zhou, Yuzhou Wang, Libo Liu, Yiding Chen, Huijun Le   +5 more
wiley   +1 more source

Separating Environmental Modulation From Source Intermittency in Methane Leakage From a Legacy Well in British Columbia

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract Legacy oil and gas wells are an incompletely quantified source of greenhouse gas emissions and offer leakage pathways for subsurface gas migration if inadequately isolated. We present a high‐resolution, process‐based characterization of leakage dynamics at an integrity‐compromised legacy gas well in northeastern British Columbia using five ...
Benjamin Pullen, Aaron G. Cahill
wiley   +1 more source

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

Advanced Engineering Materials, Volume 28, Issue 20, 21 October 2026.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier, Moritz Blum, Luana Caron, Alisa Chirkova, Philipp Cimiano, Basil Ell, Inga Ennen, Michael Feige, Maik Gaerner, Thomas Hilbig, Andreas Hütten, Günter Reiss, Tapas Samanta, Sonja Schöning, Christian Schröder, Lennart Schwan, Chris Taake, Martin Wortmann   +17 more
wiley   +1 more source

Magnetic Imaging of the Effect of Stress on the Remanent Magnetization of Basalt

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Differential compressional stresses (<100 MPa) that do not result in permanent deformation have traditionally been considered insufficient to modify paleomagnetic signals; however, recent numerical predictions have challenged this assumption.
A. R. Muxworthy, M. E. Kosters, B. M. de Groot, T. M. Mitchell, A. R. Thomson, B. Kugabalan, L. Qi, L. V. de Groot   +7 more
wiley   +1 more source

The Evolution of Parallel Electric Field Across the Earth's Magnetosheath

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract In Earth's collisionless magnetosheath, turbulence evolution and energy transformation across the system, especially at kinetic scales, remain poorly quantified without full‐coverage of high‐resolution observations. Using multi‐traversal observations from the 2023 and 2024 Magnetospheric Multiscale (MMS) Unbiased Magnetosheath Campaign, we ...
Y. Qi, R. E. Ergun, T. Vo, A. Chasapis, S. J. Schwartz, V. Wilder   +5 more
wiley   +1 more source

Drift‐Resonance Driven by Field Line Resonance Gradients: A Mechanism for Non‐Dispersive Microinjection Events

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Ultra‐low‐frequency waves in the magnetosphere often produce field line resonances with strong spatial gradients in wave amplitude. We analyze a form of drift resonance driven by these gradients near the resonant field line. This mechanism differs fundamentally from conventional gradient‐ and curvature‐driven drift resonance and predicts an ...
J. Liu, R. Rankin, A. W. Degeling, S. Yao, F. Fenrich   +4 more
wiley   +1 more source

Unusual Enhancement in He(23S) Airglow Brightness Associated With Interplanetary Magnetic Field Northward Turnings During the 2025 New Year's Day Storm

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract The upper thermosphere is important in the context of space weather, but continuous monitoring of the thermosphere at high latitudes remains limited despite its strong variations associated with geomagnetic activity. Orthohelium, He(23S), is found from the upper thermosphere to lower exosphere, and is a promising tracer of atmospheric dynamics.
Takanori Nishiyama, Masato Kagitani, Noora Partamies, Daniel Whiter, Takuo T. Tsuda, Yasunobu Ogawa, Fred Sigernes   +6 more
wiley   +1 more source

Der Teil und das Ganze: Feldabhängige THz‐ESR‐Spektroskopie sondiert gitterabhängige elektronische Struktur beim Spin‐Crossover von Eisen(II)

Angewandte Chemie, Volume 138, Issue 42, 12 October 2026.
Die THz‐ESR‐Spektroskopie ermöglicht einen direkten Zugang zur energetisch niedrig liegenden elektronischen Struktur und zur Spin‐Phonon‐Kopplung in Spin‐Crossover‐(SCO)‐Komplexen des Eisen(II). Die Quantifizierung des High‐Spin‐Anteils (γHS) und subtile Verschiebungen magnetischer Übergänge offenbaren den Einfluss des umgebenden Gitters und ...
Jooris Beyer, Gerald Ebert, Andreas Dürrmann, Benjamin Kintzel, Gerald Hörner, Tarek Al Said, Karsten Holldack, Birgit Weber, Winfried Plass   +8 more
wiley   +1 more source

The Part and the Whole: Field‐Dependent THz‐EPR Spectroscopy Probes Lattice‐Dependent Electronic Structure in Iron(II) Spin Crossover

Angewandte Chemie International Edition, Volume 65, Issue 42, 12 October 2026.
THz‐EPR spectroscopy provides direct access to the low‐lying electronic structure and spin–phonon coupling in iron(II) spin crossover (SCO) complexes. Quantification of the high‐spin fraction (γHS$\gamma _{\text{HS}}$) and subtle shifts in magnetic transitions reveal the influence of the surrounding lattice and enable discrimination between microscopic
Jooris Beyer, Gerald Ebert, Andreas Dürrmann, Benjamin Kintzel, Gerald Hörner, Tarek Al Said, Karsten Holldack, Birgit Weber, Winfried Plass   +8 more
wiley   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

Advanced Functional Materials, Volume 36, Issue 81, 8 October 2026.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source