orthometric correction

orthometric correction

[¦ȯr·thə¦me·trik kə′rek·shən]
(engineering)
A systematic correction that must be applied to a measured difference in elevation since level surfaces at varying elevations are not absolutely parallel.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The size of normal corrections is comparable to normal orthometric corrections that were taken into account in the height system of Slovenia.