Results 21 to 30 of about 7,331 (246)

Analytic Calculation of Geoelectric Fields Due to Geomagnetic Disturbances: A Test Case

IEEE Access, 2019
Geomagnetic field variations produce geoelectric fields that can affect the operation of technological networks at the Earth's surface, including power systems, pipelines, phone cables and railway circuits.
David H. Boteler, Risto J. Pirjola, Luis Marti   +2 more
doaj   +1 more source

Continuous underground observation of the geomagnetic field in Xuzhou City, North China, and its time-varying characteristics

Frontiers in Earth Science
Underground space in Xuzhou City, North China, has become a favorable site for continuous geomagnetic observation to reveal geomagnetic-field variations and to monitor seismic activity due to its distinct advantage of an “ultra-quiet” and “ultra-clean ...
Mei Han, Mei Han, Lianghui Guo, Lianghui Guo, Lianghui Guo, Yun Wang, Yun Wang, Xiang Wang, Xiang Wang   +8 more
doaj   +1 more source

Multiscale variation model and activity level estimation algorithm of the Earth's magnetic field based on wavelet packets [PDF]

Annales Geophysicae, 2018
We suggest a wavelet-based multiscale mathematical model of geomagnetic field variations. The model is particularly capable of reflecting the characteristic variation and local perturbations in the geomagnetic field during the periods of increased ...
O. V. Mandrikova, O. V. Mandrikova, I. S. Solovyev, I. S. Solovyev, S. Y. Khomutov, V. V. Geppener, D. M. Klionskiy, M. I. Bogachev   +7 more
doaj   +1 more source

Matematička analiza magnetskog polja zemlje / Mathematical analysis of geomagnetic field

Vojnotehnički Glasnik, 2006
Poznavanje matematičkih transformacija kojima se može predstaviti intenzitet vektora magnetskog polja Zemlje ima veoma veliki značaj. Definisanjem koeficijenata transformacionih funkcija omogućava se predstavljanje raspodele vrednosti polja na određenom ...
Goran Prodanović
doaj   +1 more source

Analysis of geomagnetic disturbances dynamics during increased solar activity and magnetic storms (according to the measurements of INTERMAGNET station network) [PDF]

E3S Web of Conferences, 2019
We present and describe an automated method for analysis of magnetic data and for detection of geomagnetic disturbances based on wavelet transformation.
Mandrikova Oksana, Rodomanskay Anastasia, Zaitsev Alexander   +2 more
doaj   +1 more source

Air showers and geomagnetic field

Journal of Physics G: Nuclear and Particle Physics, 2000
16 pages, 9 figures.
Cillis, A., Sciutto, S. J.
openaire   +2 more sources

Radiation Resilient Synthetic Antiferromagnets‐Based Neuromorphic Device for Sea Surface Temperature Reconstruction

Advanced Science, EarlyView.
By leveraging strong antiferromagnetic coupling, radiation‐tolerant synthetic antiferromagnetic synaptic devices are developed. Their intrinsic nonlinearity emulates neuronal activation, while linear and symmetric conductance modulation mimics synaptic plasticity.
Mingxu Song, Jiahao Liu, Ruisheng Hu, Teng Xu, Aihua Tang, Zhihong Zhu   +5 more
wiley   +1 more source

WHUEMM: global core field modelling from multiple satellites and comparative evaluation of inversion strategy

Earth, Planets and Space
Measurements from low Earth orbit satellites play an important role in modern geomagnetic field modelling. In this study, we present two geomagnetic field models, WHUEMM-S, derived by sequential inversion, and WHUEMM-C, derived by comprehensive inversion.
Bohao Qian, Chao Xiong, Fengjue Wang, Yanyan Yang, Xinyi Rang, Yuyang Huang   +5 more
doaj   +1 more source

Modeling of the Sq geomagnetic field induced by tidal oscillations of the atmosphere

Earth and Planetary Physics
The Sq (solar quiet) geomagnetic field is generated by the electric currents in the E-region of the ionosphere, driven by the atmospheric tides. It is a critical part of high-precision geomagnetic field modeling.
WenBo Li, DaLi Kong, HongBo Yao, Hao Yan
doaj   +1 more source

The Geomagnetic Field

Journal of High Energy Physics, Gravitation and Cosmology, 2016
In this paper a solution to the problem of the self-generated magnetic field of the Earth is pro-posed. The solution is based on the existence of a steady-state current distribution localized in some region inside the convective zone of the planet, constituted by the fluid Outer Core.
openaire   +2 more sources