Results 111 to 120 of about 3,588 (211)
Experimental dynamos: from models to applications to the geodynamo
Comptes Rendus. PhysiqueLarmor proposed in 1919 an explanation for the origin of the Sun’s magnetic field. This phenomenon, known as the dynamo effect, is considered to be responsible for most of the magnetic fields of astrophysical objects, including that of the Earth. It took
Pétrélis, François
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On effect of precession-induced flows in the liquid core for early Earth's history [PDF]
Nonlinear 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
Low inertia reversing geodynamos
Physics of the Earth and Planetary InteriorsConvection 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
, 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.
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Detecting dipolarity of the geomagnetic field in the paleomagnetic record. [PDF]
Proc 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]
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
How do core surface flow models vary when inverted from IGRF-14 candidate field models? [PDF]
Earth Planets SpaceRogers HF, Mandea M.
europepmc +2 more sources
Waves in planetary dynamos. [PDF]
Rev Mod Plasma Phys, 2023 Hori K, Nilsson A, Tobias SM.
europepmc +1 more source
Plate motion and a dipolar geomagnetic field at 3.25 Ga. [PDF]
Proc Natl Acad Sci U S A, 2022 Brenner AR +4 more
europepmc +1 more source