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The CHAOS-8 geomagnetic field model

Earth, Planets and Space
We present CHAOS-8, an extension of the CHAOS field model series that describes the time-dependent near-Earth geomagnetic field, valid from 1999 to 2025. It is estimated from magnetic measurements collected by multiple low-earth-orbit satellites, such as
C. Kloss, C. C. Finlay, N. Olsen, L. Tøffner-Clausen, N. Gillet, A. Grayver   +5 more
doaj   +2 more sources

High-Precision Aeromagnetic Compensation Method Under the Influence of the Geomagnetic Field [PDF]

Sensors
Aeromagnetic surveys play an important role in geophysical exploration and many other fields. In many applications, magnetometers are installed aboard an aircraft to survey large areas.
You Li, Guochao Wang, Qi Han, Qiong Li
doaj   +2 more sources

Geomagnetic field shielding over the last one hundred thousand years

Journal of Space Weather and Space Climate, 2022
The geomagnetic field prevents energetic particles, such as galactic cosmic rays, from directly interacting with the Earth’s atmosphere. The geomagnetic field is not static but constantly changing, and over the last 100,000 years, several geomagnetic ...
Gao Jiawei, Korte Monika, Panovska Sanja, Rong Zhaojin, Wei Yong   +4 more
doaj   +1 more source

Domino model for geomagnetic field reversals [PDF]

Physical Review E, 2013
accepted for Physical Review E, 18 December ...
Mori, N., Schmitt, D., Wicht, J., Ferriz-Mas, A., Mouri, H., Nakamichi, A., Morikawa, M.   +6 more
openaire   +4 more sources

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

Regional geomagnetic core field and secular variation model over the Iberian Peninsula from 2014 to 2020 based on the R-SCHA technique

Earth, Planets and Space, 2023
The Earth’s magnetic field originated in the fluid core, the so-called core field, is the dominant contribution to the geomagnetic field. Since ancient times, the core geomagnetic field has been used primarily for geographical orientation and navigation ...
Marina Puente-Borque, F. Javier Pavón-Carrasco, Alberto Núñez, José Manuel Tordesillas, Saioa A. Campuzano   +4 more
doaj   +1 more source

Effects of the Laschamps Excursion on Geomagnetic Cutoff Rigidities

Geochemistry, Geophysics, Geosystems, 2022
Today's geomagnetic field can prevent energetic particles, including solar energetic particles and galactic cosmic rays, from directly hitting the Earth's atmosphere.
Jiawei Gao, Monika Korte, Sanja Panovska, Zhaojin Rong, Yong Wei   +4 more
doaj   +1 more source

A gaussian model for simulated geomagnetic field reversals [PDF]

Physics of the Earth and Planetary Interiors, 2016
Field reversals are the most spectacular changes in the geomagnetic field but remain little understood. Paleomagnetic data primarily constrain the reversal rate and provide few additional clues. Reversals and excursions are characterized by a low in dipole moment that can last for some 10kyr.
Wicht, Johannes, Meduri, Domenico G.
openaire   +4 more sources

The development of a regional geomagnetic daily variation model using neural networks [PDF]

Annales Geophysicae, 2000
Global and regional geomagnetic field models give the components of the geomagnetic field as functions of position and epoch; most utilise a polynomial or Fourier series to map the input variables to the geomagnetic field values.
P. R. Sutcliffe
doaj   +1 more source

Modeling of regional magnetic field applying spherical functions: theoretical aspect

Геофизический журнал, 2019
Observation of geomagnetic field, measurement of its components values and establishment on their base models of geomagnetic field as well as geomagnetic mapping are the main trend of geomagnetic studies.
Yu. P. Sumaruk, L. M. Yankiv-Vitkovska, B. B. Dzuman   +2 more
doaj   +1 more source