Results 41 to 50 of about 1,386 (209)
Geodynamo reversals and numerical simulations
, 2018 Review talk given at the SEDI 2018 (Edmonton, Canada).More than 20 years ago, a stunning computer simulation of the geodynamo, including polarity reversals, has been published.I will attempt to review the progresses made since then in terms of ...
Nathanael Schaeffer (474534)
core +1 more source
The non-negligible effect of viscosity diffusion on the geodynamo process
, 2021 The data are used in the article "The non-negligible effect of viscosity diffusion on the geodynamo process"
DongChao
core +1 more source
Комплекс программ моделирования геодинамо на основе спектральных эредитарных моделей
Vestnik KRAUNC: Fiziko-Matematičeskie NaukiИсследование задачи геодинамо часто проводят на основе спектральных моделей, когда поля задачи полностью или частично раскладываются по собственным полям (модам) подходящих спектральных задач.
Водинчар, Г.М. +2 more
doaj +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
Magnetic Stability Analysis for the Geodynamo [PDF]
, 2004 Kinematic dynamo modelling addresses the growth of magnetic fields under the action of fluid flow, effected in the geophysical case by the action of the convecting electrically conducting outer core and magnetic diffusion. In this study, we prescribe the
Livermore, Philip
core
Многомасштабная модель геодинамо: сопряжение крупномасштабной и мелкомасштабной подмоделей
Vestnik KRAUNC: Fiziko-Matematičeskie NaukiФормирование главного геомагнитного поля обеспечивается работой механизма гидромагнитного динамо — генерации магнитного поля движением проводящей среды. Динамо Земли (геодинамо) управляется конвекцией жидкого металла во внешнем ядре Земли.
Водинчар, Г.М. +1 more
doaj +1 more source
Sulfur‐Bearing hcp Iron for Earth's Inner Core
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract Earth's iron core is believed to contain light impurities which should have been included during core formation. In order to place constraints on core composition, here we report the effect of sulfur on density of hexagonal close‐packed (hcp) iron which was not previously examined, using laser‐heated diamond anvil cells with in situ ...
Emiko Sugimura‐Komabayashi +7 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.Abstract Anisotropy of magnetic remanence (AMR) holds promise for quantifying relative paleointensity values from sedimentary rocks. A proof of concept was established for applied fields that exceeded the intensity of the geomagnetic field. Under Earth‐like fields, large uncertainties necessitate the development of a new approach to improve the ...
Felix K. Ostermeier +5 more
wiley +1 more source
Geodynamo Simulations with XSHELLS + SHTns
, 2015 Details concerning the Spherical Harmonic Transform library SHTns and the geodynamo simulation code XSHELLS. Insights into a big simulation using XSHELLS and SHTns are given at the end.
Nathanael Schaeffer (474534)
core +1 more source
Pressure Dependence of Liquid Iron Viscosity From Machine‐Learning Molecular Dynamics
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.Abstract We have developed a machine‐learning potential that accurately models the behavior of iron under the conditions of Earth's core. By performing numerous nanosecond scale equilibrium molecular dynamics simulations, the viscosities of liquid iron for the whole outer core conditions are obtained with much less uncertainty.
Kai Luo, Xuyang Long, R. E. Cohen
wiley +1 more source