Definitions for grid reference

This page provides all possible meanings and translations of the word grid reference

Wiktionary

  1. grid reference(Noun)

    The point or area on a map described by the numbers or letters indicated.

  2. Origin: grid + reference

Freebase

  1. Grid reference

    Grid references define locations on maps using Cartesian coordinates. Grid lines on maps define the coordinate system, and are numbered to provide a unique reference to features. Grid systems vary, but the most common is a square grid with grid lines numbered sequentially from the origin at the bottom left of the map. The grid numbers on the east-west axis are called Eastings, and the grid numbers on the north-south axis are called Northings. Numerical grid references consist of an even number of digits. Eastings are written before Northings. Thus in a 6 digit grid reference 123456, the Easting component is 123 and the Northing component is 456. Grids may be arbitrary, or can be based on specific distances, for example the United Kingdom Ordnance Survey maps use a one-kilometre square grid spacing. A grid reference locates a unique square region on the map. The precision of location varies, for example a simple town plan may use a simple grid system with single letters for Eastings and single numbers for Northings. A grid reference in this system, such as 'H3', locates a particular square rather than a single point. Points can be located by grid references on maps that use a standard system for Eastings and Northings, such as the Ordnance Survey National Grid used by the Ordnance Survey, and located by someone else using grid references, even if using maps of a different scale.

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