Results 31 to 40 of about 21,226 (301)

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

open access: yesAnnales 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   +7 more
doaj   +1 more source

Matematička analiza magnetskog polja zemlje / Mathematical analysis of geomagnetic field

open access: yesVojnotehnički 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

Palaeosecular variations of the geomagnetic field in Africa during the Holocene: a review

open access: yes, 2020
The importance of the full understanding of the Holocene geomagnetic field spans from human history and archaeology, to palaeoclimatic changes and engineering, to geomagnetic field modelling and unravelling of the geomagnetic field characteristics and ...
Di Chiara, Anita
core   +1 more source

Scaling and a Fokker-Planck model for fluctuations in geomagnetic indices and comparison with solar wind as seen by Wind and ACE [PDF]

open access: yes, 2005
The evolution of magnetospheric indices on temporal scales shorter than that of substorms is characterized by bursty, intermittent events that may arise from turbulence intrinsic to the magnetosphere or that may reflect solar wind-magnetosphere coupling.
Hnat, B.   +2 more
core   +1 more source

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

open access: yesE3S 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   +2 more
doaj   +1 more source

Air showers and geomagnetic field

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

Geomagnetic Impulses and the Electrical Conductivity of the Lower Mantle [PDF]

open access: yes, 1991
This thesis is an investigation of the changes in the magnetic field as measured at the surface of the Earth on the time-scale of months to decades. In particular the phenomena of geomagnetic "impulses" or "jerks" are investigated.
Stewart, Douglas Norman
core  

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

open access: yesAdvanced 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   +5 more
wiley   +1 more source

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

open access: yesEarth, 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   +5 more
doaj   +1 more source

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

open access: yesEarth 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

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