Results 61 to 70 of about 3,587,742 (160)

A Global Lithospheric Magnetic Field Model Derived From Multi‐Satellite Gradient Observations and Regional Aeromagnetic Data

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract Using gradient data from the Macau Science Satellite‐1 (MSS‐1), CHAMP, Swarm‐A, and Swarm‐C satellites, together with aeromagnetic model data from China, we built the China‐specific Global Gradient Lithospheric Magnetic Model (CGGLM). The new model reaches spherical harmonic degree 140 and uses the Iteratively Re‐weighted Least‐Squares method ...
Yuxuan Lin, Yan Feng, Jiaxuan Zhang, Pan Zhang, Xinwu Li, Ya Huang   +5 more
wiley   +1 more source

Episodic Change, Quiescence, and Recovery of Earth's Inner Core Surface

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract While a consensus has emerged that the hypothesis of inner core differential rotation cannot provide a consistent explanation for the seismic data, it remains debated whether the seismic data indicate a concurrence of a temporal change of inner core surface with an inner core differential rotation or the temporal change of inner core surface ...
Xin Zhang, Lianxing Wen
wiley   +1 more source

Variation of Global Ionospheric Scintillation and Its Effect on GPS Kinematic PPP‐AR Performance During Geomagnetic Storms in Solar Cycle 25: A Statistical Analysis

Space Weather, Volume 24, Issue 10, October 2026.
Abstract Enhanced small‐scale ionospheric irregularities during geomagnetic storms can disturb Global Navigation Satellite System (GNSS) carrier‐phase tracking and are associated with reduced stability of ambiguity‐fixed precise point positioning (PPP‐AR), but their impact on kinematic positioning remains insufficiently quantified.
Dongsheng Zhao, Qichen Zhao, Shuanglei Cui, Kefei Zhang, Longjiang Li, Wang Li, Zhongchao Shi, Craig M. Hancock   +7 more
wiley   +1 more source

Calibration Method of Empirical Atmospheric Density Based on Physics‐Informed Neural Networks

Space Weather, Volume 24, Issue 10, October 2026.
Abstract Thermospheric density is a critical parameter for low Earth orbit satellite applications, including orbit prediction, collision risk assessment, and atmospheric drag analysis. However, empirical atmospheric density models exhibit significant uncertainties under disturbed space weather conditions, while purely data‐driven approaches may not ...
Weirong Huang, Shengfu Xia, Jiabao Sun, Xianglei Zhao, Xiangxu Lei, Guangyu Zhao, Junyu Chen   +6 more
wiley   +1 more source

Investigating the Trip of a Transformer in Sweden During the 24 April 2023 Storm

Space Weather
Geomagnetically Induced Currents are unwanted currents that flow in large ground‐based conductive infrastructure and are a significant threat to bulk power grids.
A. P. Dimmock, V. Lanabere, A. Johlander, L. Rosenqvist, E. Yordanova, S. Buchert, S. Molenkamp, J. Setréus   +7 more
doaj   +1 more source

Long-period geomagnetic pulsations as an element of the space weather influence on technologocal systems

Solar-Terrestrial Physics
We analyze variations in geomagnetically induced currents (GIC) and pulsations of the geomagnetic field latitudinal By component in the frequency range 1–20 mHz.
Yagova N. V., Sakharov Y. A., Pilipenko V. A., Selivanov V. N.   +3 more
doaj   +1 more source

Effects of Lateral Conductivity Variations on Geomagnetically Induced Currents: H-Polarization

IEEE Access, 2019
H-polarization, along with E-polarization, indicates the lateral variations of the Earth conductivity, which influence the induced electric field distribution.
Chunming Liu, Xuan Wang, Shuming Zhang, Chunze Xie   +3 more
doaj   +1 more source

Discrepancies and Transformation Between Space‐Based and Ground‐Based Dst Indices: Insights From Swarm and CSES

Space Weather, Volume 24, Issue 10, October 2026.
Abstract The Disturbance Storm Time (Dst) index is a critical metric primarily reflecting the intensity of symmetric part of the magnetospheric ring current. Although satellite magnetometry has enabled the calculation of a space‐based Dst index, such measurements exhibit a systematic bias when compared to the conventionally used ground‐based Dst. Using
Mengjie Wang, Yanyan Yang, Yong Ji, Zeren Zhima, Chao Xiong, Jie Wang, Roberto Battiston, Mirko Piersanti, Bin Zhou   +8 more
wiley   +1 more source

The Dense MORB Fraction Controls the Dynamic Stability and Hydration Potential of the Mantle Transition Zone

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The mantle transition zone (MTZ; ∼410–660 km depth) is a major reservoir of water and mid‐ocean ridge basalt (MORB)‐like materials, yet how composition and hydration regulate its physical stability remains unclear. Using geodynamical modeling, we examine the joint effect of water content and dense MORB fraction on the density, viscosity, and ...
Zhensheng Wang, Sierd Cloetingh, Alexander Koptev, Qin Wang, Alessio Lavecchia, István Kovács, Timothy Kusky   +6 more
wiley   +1 more source

Geomagnetically induced currents in a Norwegian transformer station [PDF]

, 2022
This report considers measurements of geomagnetically induced current (GIC) and comparison to recorded variations in the geomagnetic field (dB/dt). The GIC-sensors were installed in the neutral point of a 420 kV transformer located in Mid-Norway in 2019.
Solheim, Kristian Thinn, Johnsen, Magnar Gullikstad, Mo, Olve   +2 more
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