Results 11 to 20 of about 3,588 (211)
Paleomagnetism indicates that primary magnetite in zircon records a strong Hadean geodynamo. [PDF]
Proc Natl Acad Sci U S A, 2020 Tarduno JA +13 more
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ИНВЕРСИИ В ШЕСТИСТРУЙНОЙ МОДЕЛИ ГЕОДИНАМО [PDF]
Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2016 We describe a large-scale geodynamo model based on hypothesis about 6-jet convection in the Earth’s core. This hypothesis suggests indirect data of inhomogeneities in the density of the Earth’s core.
Vodinchar G. M. , Feshchenko L. K.
doaj +1 more source
Contributions to Geophysics and Geodesy, 2017 Numerical simulations of the geodynamo are becoming more realistic because of advances in computer technology. Here, the geodynamo model is investigated numerically at the extremely low Ekman and magnetic Prandtl numbers using the PARODY dynamo code ...
Ján ŠIMKANIN, Juraj KYSELICA
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Mathematics, 2023 Spectral models are often used in the study of geodynamo problems. Physical fields in these models are presented as stationary basic modes combinations with time-dependent amplitudes. To construct a model it is necessary to calculate the modes parameters,
Gleb Vodinchar, Liubov Feshchenko
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Scale disparities and magnetohydrodynamics in the Earth’s core [PDF]
, 2000 Fluid motions driven by convection in the Earth’s fluid core sustain geomagnetic fields by magnetohydrodynamic dynamo processes. The dynamics of the core is critically influenced by the combined effects of rotation and magnetic fields.
Gubbins, D., Zhang, K.
core +1 more source
The effect of model errors in ensemble sequential assimilation of geomagnetic field
Earth and Planetary Physics, 2023 Earth’s magnetic field is generated in the fluid outer core through the dynamo process. Over the last decade, data assimilation has been used to retrieve the core dynamics and predict the evolution of the geomagnetic field.
JinFeng Li, YuFeng Lin, KeKe Zhang
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Geomagnetic Dipole Changes and Upwelling/Downwelling at the Top of the Earth's Core
Frontiers in Earth Science, 2018 The convective state of the top of Earth's outer core is still under debate. Conflicting evidence from seismology and geomagnetism provides arguments for and against a thick stably stratified layer below the core-mantle boundary.
Ludovic Huguet +3 more
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NUMERICAL SIMULATION IN LOW MODED GEODYNAMOMODEL APPLYING THE PACKAGES OF HIGH PRECISION CALCULATION [PDF]
Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2011 The means of high precision calculation are considered, their comparative analysis isfulfilled, application of the most efficient of them for the geodynamo task is regardered.
A.S. Chemarev +2 more
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Can the Earth's dynamo run on heat alone? [PDF]
, 2003 The power required to drive the geodynamo places significant constraints on the heat passing across the core-mantle boundary and the Earth's thermal history. Calculations to date have been limited by inaccuracies in the properties of liquid iron mixtures
Alfè +12 more
core +1 more source
REVERSALS IN THE 6-CELLS CONVECTION DRIVEN [PDF]
Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2015 We describe the large-scale model geodynamo, which based on indirect data of inhomogeneities in the density of the Earth’s core. Convection structure is associated with spherical harmonic Y24 , which defines the basic poloidal component of velocity ...
G.M. Vodinchar, L.K. Feshenko
doaj +1 more source