grid convergence


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grid convergence

[′grid kən‚vər·jəns]
(navigation)

grid convergence

grid convergence
The horizontal angle at a place between true north and grid north. It is proportional to the longitude difference between the place and the central meridian. It is measured east or west from true north.
References in periodicals archive ?
Grid convergence will be demonstrated by comparing relevant quantities on the sequence of grids at strategically chosen locations.