# grid coordinates

Also found in: Dictionary, Wikipedia.
Related to grid coordinates: Google Earth

## Grid Coordinates

in geodesy, pairs of numbers that determine the position of points in the plane of a geodetic projection. Grid coordinates are used in the numerical processing of the results of geodetic measurements, in the compilation of topographic maps, and in the practical application of topographic maps and geodetic data.

The Gauss-Krüger projection is used in the USSR and a number of other countries. It is a conformal projection of the terrestrial ellipsoid onto a plane such that the central meridian is represented by a straight line, which is the axis of symmetry of the projection. There are no distortions on the central meridian. Separate zones of the terrestrial ellipsoid that are bounded by two meridians are mapped in the plane of the Gauss-Krüger projection. The central meridian of the zone and the equator are represented by lines in the plane, which taken as the axes of the abscissas and the ordinates, respectively, of the grid coordinates. The abscissas of the points representing the central meridian are equal to the arcs of meridian from the equator to the points; the ordinates of the points are zero.

### REFERENCES

Morozov, V. P. Kurs sferoidicheskoigeodezii. Moscow, 1969.
Urmaev, N. A. Sferoidicheskaia geodeziia. Moscow, 1955.
Krasovskii, F. N. Rukovodstvo po vysshei geodezii, part 2. Moscow, 1942.

G. A. MESHCHERIAKOV

## grid coordinates

Coordinates of a grid coordinate system to which numbers and letters are assigned to designate a point on a gridded map, photograph, or chart. The system facilitates the conversion of latitude and longitude and other earth measures on a flat sheet by a routine plane survey. See grid (iii).
References in periodicals archive ?
Sir, I gave you my grid coordinates, just bomb us,' Dureza said, quoting Bayot's message to his officer.
Aside from forwarding the grid coordinates of the beleaguered SAF commandos, NapeAaAaAeA~as said he also forwarded these to PNP officer-in-charge Depu Director General Leonardo Espina, who, in turn, forwarded the same to military Western Mindanao Command (Wesmincom) chief Lt.
Grid coordinates of the landmarks are provided (some partial, see Figure 3), as well as a story of two pirates and their journey in search of treasure.
UTM grid coordinates are expressed as a distance in meters to the east, referred to as the "easting", and a distance in meters to the north, referred to as the "northing".
The official said his department will soon launch the facility to send the grid coordinates of locations via sms as well.
If troops face resistance, the Shadow is able to relay information such as grid coordinates on enemy locations, Bramlett said.
I was here with hard evidence - photos, video, grid coordinates and plenty of witnesses, yet flatline from MSM," he told WND.
The authors and a photographer spent 16 days in Vietnam using map grid coordinates gleaned from Army radio logs to pinpoint exact locations of the transgressions, interviewed Vietnamese eyewitnesses, Tiger Force veterans, and Army investigators, and examined thousands of documents.
Spotting a radio direction-finding complex, they called in the grid coordinates to an AWACS (Airborne Warning and Control System) plane loitering overhead which in turn summoned waiting F-16s.
Provide all pertinent details to your Unit Control Center: size, shape, color, condition, landmarks and grid coordinates.
If you know anything about Texas in the spring the woods are thick, and the soldiers were asked to find four unknown points knowing only grid coordinates, distance and magnetic azimuth from a start point.
The initial integration effort began with taking these grid coordinates and plotting them on a digital map.

Site: Follow: Share:
Open / Close