释义 |
grid magnetic angle
grid magnetic angleAngular difference in direction between grid north and magnetic north. It is measured east or west from grid north. Also called grid variation; grivation.grid magnetic angle
grid magnetic angle[′grid mag¦ned·ik ′aŋ·gəl] (navigation) In grid navigation, the angular difference in direction between grid north and magnetic north; it is measured east or west from grid north. grid magnetic angleThe angular difference in direction between grid north and magnetic north. It is measured east or west from grid north. A grid magnetic angle is sometimes called a grivation and/or grid variation.AcronymsSeeGMAThesaurusSeemagnetic declination |