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magnetic diurnal variation |
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magnetic diurnal variation [mag′ned·ik dī′ərn·əl ‚ver·ē′ā·shən] (geophysics) Oscillations of the earth's magnetic field which have a periodicity of about a day and which depend to a close approximation only on local time and geographic latitude. Also known as magnetic daily variation. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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