Results 91 to 100 of about 5,130 (219)

Paleosecular Variation Constraints on Geomagnetic Field Morphology at ca. 1100 Ma

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Paleosecular variation provides a statistical test of long‐term geomagnetic field morphology, but its behavior across Precambrian polarity regimes remains poorly constrained. We compile a virtual geomagnetic pole dispersion data set spanning 1130–1070 Ma and apply nonlinear Model G fitting to evaluate field structure across the interval ...
Hanqing Zhao, Shihong Zhang, Jikai Ding, Qiang Ren, Haiyan Li, Weiwei Bian, Tianshui Yang, Huaichun Wu   +7 more
wiley   +1 more source

Geomagnetic storms driven by ICME- and CIR-dominated solar wind. [PDF]

, 2006
The interaction of the solar wind and the Earth's magnetosphere is complex and the phenomenology of the interaction is very different for solar wind dominated by interplanetary coronal mass ejections (ICMEs) compared to solar wind dominated by corotating
Liemohn, M. W., Zhang, J. C., Skoug, R. M., McPherron, R. L., Denton, M. H., Borovsky, Joseph E., Denton, Michael H., Henderson, M. G., Lavraud, B., Borovsky, J. E., Thomsen, M. F.   +10 more
core   +1 more source

Simultaneous TRACERS and THEMIS Observations of Reversed Cusp Ion Dispersions and Dual‐Lobe Reconnection

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract We present observations from two consecutive TRACERS‐2 orbits through the northern low‐altitude cusp. During the first crossing, TRACERS‐2 observed reversed cusp ion dispersion and sunward convection, consistent with magnetopause reconnection tailward of the cusp during this northward IMF interval.
M. Øieroset, S. A. Fuselier, J. B. Bonnell, R. A. Roglans, J. S. Halekas, R. J. Strangeway, T. D. Phan, R. G. Gomez, S. M. Petrinec, K. J. Trattner, S. R. Shaver, K. A. Goodrich, S. A. Henderson, S. L. Soni, V. Angelopoulos, B. L. Burkholder, H. Cao, L.‐J. Chen, H. K. Connor, D. M. Miles, A. Moore, J. Ng, Y. Shen   +22 more
wiley   +1 more source

Repeat-station surveys: implications from chaos and ergodicity of the recent geomagnetic field

, 2013
The present geomagnetic field is chaotic and ergodic: chaotic because it can no longer be predicted beyond around 6 years; and ergodic in the sense that time averages correspond to phase-space averages.
De Santis, Angelo, Qamili, E., Enkelejda Qamili, Gianfranco Cianchini, Cianchini, Gianfranco, Cianchini, G., Angelo De Santis, De Santis, A., Qamili, Enkelejda   +8 more
core   +1 more source

Second generation of CSES global geomagnetic field model (CGGM-2) and associated candidate models for IGRF-14

Earth, Planets and Space
This paper presents the second generation of the China Seismo-Electromagnetic Satellite (CSES) Global Geomagnetic Field Model (CGGM-2), specifically designed to derive candidate models for the fourteenth generation of the International Geomagnetic ...
Yanyan Yang, Zhima Zeren, Gauthier Hulot, Jie Wang, Nils Olsen, Siquan Yang, Bin Zhou, Werner Magnes, Bingjun Cheng, Jianpin Huang, Louis Chauvet, Dehe Yang, Roland Lammegger, Jian Lin, Dapeng Liu, Hengxin Lu, Na Zhou, Rui Yan, Zhenxia Zhang, Wei Chu, Song Xu, He Huang, Jing Cui, Qiao Tan, Wenjing Li, Feng Guo   +25 more
doaj   +1 more source

Electromagnetic Ion Cyclotron Waves in the Initial Phase of Geomagnetic Storms

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Using simultaneous magnetic field observations from 10 satellites and an automated detection algorithm, we identify broad regions of electromagnetic ion cyclotron (EMIC) wave activity during the initial phases of geomagnetic storms between September 2015 and October 2019.
Taylor R. Whitney Aegerter, Lauren W. Blum   +1 more
wiley   +1 more source

Simple additional constraints on regional models of the geomagnetic secular variation field

, 1996
Lecter section of Physics of the Earth and Planetary Interiors 97 (1996)Standard ways of building regional models of the geomagnetic field fail when one wishes to model secular variation (SV).
Torta, J. M., De Santis, A., Falcone, C.
core  

MMS Observations of the Energetic Particles Within Kelvin‐Helmholtz Waves at the Boundary of the 10 May 2024 Coronal Mass Ejection (CME)

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract On 10 May 2024, Earth was hit by a CME that drove the largest geomagnetic storm in 20 years. Multi‐spacecraft observations previously showed that the ∼100 nT north‐south IMF bz ${b}_{z}$ variation was driven by Kelvin‐Helmholtz waves with wavelength ∼250 RE ${R}_{E}$ and reconnection jets in the ±z $\pm z$‐direction (Nykyri, 2024a, https://doi.
Katariina Nykyri, Neetasha Arya, Scott Boardsen, Guan Le, Harri Laakso, Lynn Wilson, Xuanye Ma, Katherine Holland, Brandon Burkholder, Leon Ofman, Kyoung‐Joo Hwang, Dinesh Radhakrishnan, Shiva Kavosi, Daniel Gershman, Christine Gabrielse, Barbara Giles, Stephen Fuselier, Jim Burch   +17 more
wiley   +1 more source

Geomagnetic field models for satellite angular motion

, 2016
: Four geomagnetic field models are discussed. These models are IGRF, inclined and right dipoles and averaged one. Geomagnetic induction vector is provided in different reference frames for these models.
Pichuzhkina A.V., Roldugin D. S. http://library.keldysh.ru/author_page.asp?aid=3498   +1 more
core  

Global Wind Field Reconstruction in the Mesosphere and Lower Thermosphere (MLT) During Geomagnetic Storms by Fusing TIDI and SABER Data: A Generative Adversarial Network (GAN) Approach

Geoscience Data Journal, Volume 13, Issue 3, July 2026.
ABSTRACT The Mesosphere and Lower Thermosphere establish an essential connection between Earth's lower atmosphere and upper atmosphere because wind patterns essential for atmospheric movement also influence energy distribution and chemical movements during geomagnetic storms that disrupt satellite operations and space weather prediction systems.
Yunhao Si
wiley   +1 more source