magnetic declination


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  • noun

Synonyms for magnetic declination

the angle (at a particular location) between magnetic north and true north

References in periodicals archive ?
Production of magnetic declination maps for air and sea navigation.
Mirror sighting compass - Large mirror with 45 degrees angle assistance and sighting hole for accurate sighting - Compass housing made from Dryflex(TM) rubber - Clinometer - Magnifying lens - Luminous markings for night navigation - GPS navigation scales, 1:25k, 1:50k, mm/in - Adjustment for magnetic declination - Best choice for mountaineering, rescue and military users
Using information collected in Britain, mostly from England and Wales, Batt and her colleagues have compiled a record of how magnetic declination has varied in that region during the past 4,000 years.
TABLE 1 Results from the Brassfield formation sbowing the core number as located in Figure 6, depth of the sample in meters, the magnetic declination/inclination of the high temperature component prior to rotation about the sample bedding plane, and magnetic declination inclination after rotation about the sample bedding plane.
An obvious cue is the Earth's magnetic field, in particular the magnetic declination, or the direction of the horizontal component of the magnetic field.
This can be corrected in two ways, either by resetting the GPS to use magnetic north as a reference or by adjusting the magnetic declination (found on all good compasses) to correspond with true north.