The grid-spectral approach to 3-D geodynamo modelling
A 3-D kinematic geodynamo model in a sphere is considered. In contrast to the traditional spectral approach to the problem, a new grid-spectral method is proposed. The 3-D magnetic field and velocity field are resolved in the physical space for r- and θ-coordinates, whereas the sin- and cos-decompos...
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Published in | Computers & geosciences Vol. 26; no. 2; pp. 167 - 175 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
01.03.2000
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Subjects | |
Online Access | Get full text |
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Summary: | A 3-D kinematic geodynamo model in a sphere is considered. In contrast to the traditional spectral approach to the problem, a new grid-spectral method is proposed. The 3-D magnetic field and velocity field are resolved in the physical space for
r- and
θ-coordinates, whereas the sin- and cos-decomposition is applied to the
ϕ-coordinate. The computer code was tested by free-decay solutions, as well as by comparison with the results reported by other authors. This work is the first step of a project to study 3-D inviscid geodynamo models. |
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ISSN: | 0098-3004 1873-7803 |
DOI: | 10.1016/S0098-3004(99)00077-1 |