منابع مشابه
The earth dynamic system: the earth rotation vs mantle convection
The earth dynamic system is one of the key scientific questions on the earth science. The thermodynamic behavior and gravity force of the earth and the rheology nature of the mantle prove that mantle convection is the main power source leading the lithosphere to break and move. Yet the directivity of both the structures in the crust and plate movement reminds of the earth rotation. Here we demo...
متن کاملGeodynamo and mantle convection simulations on the Earth Simulator using the Yin–Yang grid
We have developed finite difference codes based on the Yin-Yang grid for the geodynamo simulation and the mantle convection simulation. The Yin-Yang grid is a kind of spherical overset grid that is composed of two identical component grids. The intrinsic simplicity of the mesh configuration of the Yin-Yang grid enables us to develop highly optimized simulation codes on massively parallel superc...
متن کاملThe Characterization of Seismic Earth Structures and Numerical Mantle Convection Experiments Using Two-point Correlation Functions
We consider a time-dependent random field, f(rZt), defined on a spherical shell [Q=(6,q), O56 , -t<(p it] or cylindrical annulus [92=P, -1E<(P57r]. Examples are the temperature distribution, T(r,2,t), or the radial component of the flow velocity, u(r,2,t), obtained from numerical simulations of high Rayleigh number convection. For such a field the spatio-temporal two-point correlation function,...
متن کاملACuTEMan: A multigrid-based mantle convection simulation code and its optimization to the Earth Simulator
We report the current status of our numerical simulation code named “ACuTEMan” for large-scale mantle convection problems on the Earth Simulator. The ACuTEMan code comes out from a newly-developed “ACuTE” algorithm, which solves the flow field of mantle convection in combination with the multigrid method. This algorithm iteratively solves the steady-state equations for conservation of mass and ...
متن کاملThe Mantle of the Earth
In the first decade of this century physicists discovered that the atom had a massive central core which they called a nucleus, and geophysicists discovered that the earth had a massive central nucleus which they called a core. The study of the interior of the atom, the smallest building block of matter, and the study of the interior of the earth, the largest piece of matter to which man has di...
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ژورنال
عنوان ژورنال: Eos, Transactions American Geophysical Union
سال: 2002
ISSN: 0096-3941
DOI: 10.1029/2002eo000212