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sea-air temperature difference correction |
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sea-air temperature difference correction [′sē ′er ′tem·prə·chər ¦dif·rəns kə‚rek·shən]
(navigation) A correction to sextant altitude readings made necessary by abnormal terrestrial refraction occurring when there is a nonstandard density lapse rate in the atmosphere due to a difference in the temperature of the water and of the air at the surface. 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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