Results 121 to 130 of about 4,233 (235)

On effect of precession-induced flows in the liquid core for early Earth's history [PDF]

open access: yesNonlinear Processes in Geophysics, 2006
Secondary and tertiary flow patterns seen in experiments simulating flow in the Earth's liquid core induced by luni-solar precession of the solid mantle (Vanyo et al., 1995) hint at the development of non-axisymmetric columnar periodic structures. A
S. L. Shalimov, S. L. Shalimov
doaj  

The scientific case for magnetic field satellites [PDF]

open access: yes
To make full use of modern magnetic data and the paleomagnetic record, we must greatly improve our understanding of how the geodynamo system works. It is clearly nonlinear, probably chaotic, and its dimensionless parameters cannot yet be reproduced on a ...
Backus, George E.   +3 more
core   +1 more source

Turbulent geodynamo simulations: a leap towards Earth’s core [PDF]

open access: bronze, 2017
Nathanaël Schaeffer   +3 more
openalex   +1 more source

Low inertia reversing geodynamos

open access: yesPhysics of the Earth and Planetary Interiors
Convection driven geodynamo models in rotating spherical geometry have regimes in which reversals occur. However, reversing dynamo models are usually found in regimes where the kinetic and magnetic energy is comparable, so that inertia is playing a significant role in the dynamics.
Jones CA, Tsang Y-K
openaire   +3 more sources

Domino model in geodynamo

open access: yes, 2012
Using Lagrangian formalism we consider evolution of the ensemble of interacting magnetohydrodynamic cyclones governed with Langevin type equations in the rotating medium. This problem is relevant to the planetary cores where the Rossby numbers are small and geostrophic balance takes place.
Hejda, P., Reshetnyak, M.
openaire   +2 more sources

Detecting dipolarity of the geomagnetic field in the paleomagnetic record. [PDF]

open access: yesProc Natl Acad Sci U S A, 2023
Lhuillier F, Shcherbakov VP, Sycheva NK.
europepmc   +1 more source

Core formation, evolution, and convection: A geophysical model [PDF]

open access: yes
A model is proposed for the formation and evolution of the Earth's core which provides an adequate energy source for maintaining the geodynamo. A modified inhomogeneous accretion model is proposed which leads to initial iron and refractory enrichment at ...
Anderson, D. L., Ruff, L.
core   +1 more source

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