Results 121 to 130 of about 21,118 (299)

Candidate main-field models for the Definitive Geomagnetic Reference Field 1995.0 and 2000.0 [PDF]

, 2005
Aude Chambodut, B. Langlais, Mioara Mandéa   +2 more
openalex   +1 more source

Automated method for calculating the Dst-index based on the wavelet model of geomagnetic field variations [PDF]

, 2020
Oksana Mandrikova, Anatoliy Stepanenko
openalex   +1 more source

“Caterpillar” ULF Waves in the Dusk Side Sub‐Auroral Region: Conjugate Observations With SuperDARN, Arase and Ground Magnetometers

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract On 23 November 2022, during exceptionally quiet geomagnetic conditions, a distinct ultra‐low frequency (ULF) wave in the Pc5 band (∼2.4 mHz) was observed in the duskside sub‐auroral region by two Canadian SuperDARN (Super Dual Auroral Radar Network) radars.
N. Nishitani, K. Hosokawa, T. Hori, M. Teramoto, P. V. Ponomarenko, A. Shinbori, Y. Obana, A. S. Yukimatu, G. Hussey, Y. Miyoshi, A. Matsuoka, A. Kumamoto, F. Tsuchiya, S. Matsuda, Y. Kasahara, S. Nakamura, I. Shinohara, Y. Zhang, L. Paxton   +18 more
wiley   +1 more source

LiveWire: Horizontal Geoelectric Field Prediction With 1‐hr Lead‐Time Using Multi‐Fidelity Boosted Neural Networks

Journal of Geophysical Research: Machine Learning and Computation
Geomagnetically Induced Currents (GICs) are electrical currents generated by rapid changes in the geomagnetic field during space weather events, posing risks to power grids and pipelines.
A. Hu, E. Camporeale, G. Lucas, T. Berger   +3 more
doaj   +1 more source

Estimating the extremes in European geomagnetic activity [PDF]

, 2009
Rapidly changing geomagnetic field variations constitute a natural hazard, for example in navigation and, through geomagnetically induced currents, to power grids and pipeline networks.
Dawson, Ewan, Reay, Sarah, Thomson, Alan
core  

On regional modelling of the main geomagnetic field [PDF]

Geofizika, 2007
In this study I applied Spherical Cap Harmonic Analyses, SCHA, with physical regularization (Korte and Holme, 2003) to synthetic series obtained from the Comprehensive model CM4 (Sabaka et al., 2004), at 46 European observatory locations and additionally 11 'virtual observatories' chosen to improve the initial data distribution. The main purpose was to
openaire   +1 more source

Effect of Field Line Torsion on the Polarization of ULF Waves

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract In this paper we suggest a simple modification of the dipole magnetic field which introduces field‐aligned currents and torsion to the field lines. The resulting field lines are not contained in the meridional planes and have resemblance to the geomagnetic field lines in the dawn and dusk flanks of the magnetosphere. We analyze polarization of
K. Kabin, A. W. Degeling, R. Rankin
wiley   +1 more source

Forecasting the geomagnetic activity of the Dst Index using radial basis function networks [PDF]

, 2006
The Dst index is a key parameter which characterises the disturbance of the geomagnetic field in magnetic storms. Modelling of the Dst index is thus very important for the analysis of the geomagnetic field.
Balikhin, M.A., Billings, S.A., Wei, H.L., Zhu, D.Q.   +3 more
core   +1 more source

Modeling geomagnetically induced electric field and currents by combining a global MHD model with a local one‐dimensional method [PDF]

, 2012
Jianxing Zhang, C. Wang, Binbin Tang
openalex   +1 more source

A Hierarchical Bayesian Model for the Global Holocene Geomagnetic Field

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract We present a hierarchical Bayesian model of the global geomagnetic field for the last 8,000 years. The model is built solely with thermoremanent records, which include archeomagnetic and volcanic data. Building upon previous work, this model includes fewer approximations and treats model hyperparameters as probabilistic variables.
M. A. Schanner, S. Panovska, M. Korte
wiley   +1 more source