Artwork of Earth magnetic field reversal

Artwork of Earth magnetic field reversal

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Caption: Reversal of the Earth's magnetic field. Second of three pictures showing the field structure produced by a numerical simulation of the geodynamo, the source of the Earth's magnetic field. Here, the simulation has run for 36,000 'years', and is the middle of a field reversal. The colours represent field lines with outward (yellow) and inward (blue) components. Reversals occur when the north and south magnetic poles swap position relative to the surface. Many such reversals are recorded in rocks near mid-ocean ridges. See also pictures E080/009 and E080/011. (Published in Nature, September 1995) Nature Vol 377 p.203-209, 21 September 1995.

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Keywords: artwork, dynamo, earth, earth science, field, geodynamo, geomagnetic reversal, illustration, magnetic field reversal, magnetism, model, sciences, whole earth

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