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geodynamo |
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geodynamo [‚jē·ō′dī·nə·mō]
(geophysics) The self-sustaining process responsible for maintaining the earth's magnetic field in which the kinetic energy of convective motion of the earth's liquid core is converted into magnetic energy. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | Topics include foundations of dynamo theory, including self-excited dynamo action, nonlinearity and saturation, and dynamics of rotating fluids; natural dynamos and models, including the geodynamo, planetary dynamos, stellar dynamos, and galactic dynamos; and results of recent experiments. It will attempt to show a simplified model of the combination of the Earth's magnetic and electrical fields into a self-sustaining geodynamo. Many of such questions relate directly or indirectly to issues that are currently a focus of attention: global change, past climate extremes, complex Earth systems, geochemical fluxes, planetary evolution, geodynamics, core and mantle evolution, the geodynamo, mantle plumes, flood volcanism, extinction events, potential relationships with large impacts, and discovery of new strategic mineral resources. |
geodynamo |
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