Results 1 to 10 of about 9,307,202 (259)

Intensity of the geomagnetic field in Europe for the last 3 ka: Influence of data quality on geomagnetic field modeling

Geochemistry, Geophysics, Geosystems, 2014
One of the main challenges of paleomagnetic research is to obtain high‐resolution geomagnetic field intensity reconstructions. For the last millennia, these reconstructions are mostly based on archeomagnetic data.
Francisco Javier Pavón‐Carrasco, Miriam Gómez‐Paccard, Gwenaël Hervé, María Luisa Osete, Annick Chauvin   +4 more
doaj   +2 more sources

Regional Geomagnetic Field Modeling Based on Associated Legendre Polynomials

Applied Sciences
Global geomagnetic field models typically have low spatial resolution, whereas regional models are constrained by boundary effects and limited truncation levels.
Libo Zhu, Houpu Li, Jineng Ouyang, Bo Zhu, Ming Chang   +4 more
doaj   +3 more sources

Forecasting secular variation using physics-informed neural networks for IGRF-14 [PDF]

Earth, Planets and Space
In response to the call for candidate models for the 14th generation of the International Geomagnetic Reference Field (IGRF) by the Geomagnetic Field Modeling Working Group (V-MOD) of the International Association of Geomagnetism and Aeronomy (IAGA), we ...
N. Shakespeare-Rees, P. W. Livermore, C. J. Davies, H. F. Rogers, C. D. Beggan, W. J. Brown, C. C. Finlay   +6 more
doaj   +2 more sources

Co-estimating geomagnetic field and calibration parameters: modeling Earth’s magnetic field with platform magnetometer data

Earth, Planets and Space, 2021
Models of the geomagnetic field rely on magnetic data of high spatial and temporal resolution to give an accurate picture of the Earth’s internal magnetic field and its time-dependence.
Clemens Kloss, Christopher C. Finlay, Nils Olsen   +2 more
doaj   +1 more source

A new inclination-based method to evaluate the global geomagnetic configuration and axial dipole moment

Earth and Planetary Physics, 2022
The strength and configuration of the geomagnetic field control the average shape of the magnetosphere. The pure dipole assumption and the virtual dipole moment (VDM), determined by individual records, have been widely adopted to evaluate the strength of
KaiHua Xu, Fei He, Yong Wei, Ross N. Mitchell, Si Chen, YuQi Wang, ZhaoJin Rong   +6 more
doaj   +1 more source

Quantitative estimates of average geomagnetic axial dipole dominance in deep geological time

Nature Communications, 2020
This study describes how the geomagnetic axial dipole dominance of Earth’s magnetic field remained stable through large parts of the geological time. Since other characteristics of the geomagnetic field have changed substantially on the same timescales ...
Andrew J. Biggin, Richard K. Bono, Domenico G. Meduri, Courtney J. Sprain, Christopher J. Davies, Richard Holme, Pavel V. Doubrovine   +6 more
doaj   +1 more source

АНАЛИЗ ГЕОМАГНИТНЫХ ДАННЫХ И КОСМИЧЕСКИХ ЛУЧЕЙ В ПЕРИОДЫ ПОВЫШЕННОЙ СОЛНЕЧНОЙ АКТИВНОСТИ [PDF]

Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2016
We performed analysis of the cosmic rays variations and studied features of geomagnetic field variations during periods of increased solar activity. The paper applies a new methods of modeling and analysis of the data developed by the authors based on ...
O.V. Mandrikova, T. L. Zalyaev, I. S Solovev, S.Y. Khomutov   +3 more
doaj   +1 more source

Features and Source Current of Long‐Period Induced Geoelectric Field During Magnetic Storms: A Case Study

Space Weather, 2020
We present a case study on the long‐period ( >105 s) induced geoelectric field disturbance during magnetic storms. A set of continuous 33‐day measurements of the geoelectric field, geomagnetic field, geomagnetic indices, and interplanetary magnetic field
S. Y. Wu, S. Yao, X. D. Feng, W. B. Wei, Y. T. Yin, L. T. Zhang, H. Dong, G. W. Wang, J. L. Liu, Y. Q. Yu, D. Wei   +10 more
doaj   +1 more source

A novel geomagnetic assimilation method of vector geomagnetic data

Results in Physics, 2021
Geomagnetic field has important applications in Earth Science, earthquake prediction, aerospace, national defense construction and other areas. Therefore, accurate modeling of regional geomagnetic field is very important.
Lirong Shen, Guang Sun, Wei Zhai
doaj   +1 more source

Simulating the Responses of the Magnetosphere–Ionosphere System to the IMF By Reversal

Frontiers in Physics, 2022
The interplanetary magnetic field (IMF) By component can cause asymmetric features in the magnetosphere-ionosphere system and influence the electromagnetic energy input.
Fan Gong, Fan Gong, Yiqun Yu, Yiqun Yu, Jinbin Cao, Jinbin Cao   +5 more
doaj   +1 more source