This term is utilized for route and the deviation of the grid north from the true north is less. Grid north can be defined as the direction which is in northwards along the grid lines on a map projection. It is otherwise called geodetic north and is not the same as the magnetic north which is the direction pointed by the compass and from the grid north which is toward the path along the grid lines towards the north. True north can be defined as the direction towards the true north or the geological North Pole along the earth's surface. There are three kinds of the north: True north, Grid north, and Magnetic north. Intrigued to learn more ideas identified with the magnetic field, have a look at more ideas underneath: Different terms utilized are isogonic lines (when the lines along the declination are consistent) and agonic lines (when the lines along the declination are zero) The declination will be positive when the magnetic north is east of true north, and the declination will be negative when the magnetic north is west of true north. The Greek letter δ is recognized as the magnetic declination symbol and is otherwise called magnetic variation. This isn't consistent and keeps on changing relying upon the situation upon the world's surface and time. Magnetic declination can be defined as the angle on the horizontal plane between magnetic and true north.
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