magnetic variation

British  

noun

1. another name for magnetic declination

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Example Sentences

One set of scans, which uses magnetic variations, showed the 5 hectare site was surrounded by ditches.

From BBC

Each line on the map is like a contour line but, instead of marking a uniform measurement of height, it marks a uniform measurement of magnetic variation.

From Literature

A magnetic variation shift greater than 3 degrees prompts the administration to make changes to published airport approaches, and to advise airports to make changes on their property.

From Washington Times

Every five years, the Federal Aviation Administration tests magnetic variation and assigns the values that’ll be used in designating runways.

From Seattle Times

All the Arctic peoples had been thrown into panic, and so had the animals, not only by the fog and the magnetic variations but by unseasonal crackings of ice and stirrings in the soil.

From Literature