geographic coordinates

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Geographic Coordinates


measurements that define the position of a point on the earth’s surface. Latitude (ø) is measured by the angle between a plumb line passing through a given point and the plane of the equator, and longitude (x) is measured by the dihedral angle between the plane of the meridian of a given point and the plane of the prime meridian. Latitude and longitude are determined from observations of heavenly bodies with the aid of angle gauges (for example, the universal theodolite and the sextant), which are placed with the help of a leveling weight, and from the comparison of local time (determined by astronomical observations) with universal time. Geographic coordinates determined in this way are called astronomical coordinates of a point on the earth’s surface.

Latitude is counted from 0° to 90° on both sides of the equator. In the northern hemisphere the latitude is considered positive, in the southern hemisphere, negative. Longitude is counted from the prime meridian from 0° to 360° either to the west (west longitude) or the east (east longitude—by international accord, positive). A system counting from 0° to 180° to the east and west of the prime meridian is also used.

By international agreement the base meridian (so-called prime or zero) is the meridian passing through the old Greenwich Observatory in Greenwich (London) before its transfer to Hurstmonceux Castle. Previously, meridians through other points, including the Island of Hierro (the Canary Islands) and the Paris and Berlin observatories, were used for this purpose at various times. In Russia during the 19th century longitude was calculated from the meridian of the Pulkovo Observatory.

geographic coordinates

The quantities of latitude and longitude that define the position of a point on the surface of the earth with respect to the reference spheroid. The same as coordinates.
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According to the geographic coordinates the region between 74-82[degrees] on the east longitude and 40-45[degrees] on the north latitude is considered.
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The use of GIS requires the geographic coordinates of the facilities being examined.
Geographic coordinates were purchased from an outside supplier.
Relief of GPS geographic coordinates of each meter;
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Imam stated that all consulting, reviewing and planning aspects of the project have already been conducted and completed, including maritime survey operations, the demarcation of the Red Sea floor, and the identification of accurate geographic coordinates.
Quantify and measure crime risk for any address, intersection or geographic coordinates
Previously the company has created the database of all postal codes in Russia which includes the number of postal codes, name of the city or settlement located in the postal code and geographic coordinates of the postal code's center point.
Geographic coordinates of residence sites of these ATL patients were obtained by using a Brunton Multi-Navigator global positioning system apparatus (Brunton Company, Riverton, WY, USA), which has a range precision of 15 m.
Geospatial data comprises geographic coordinates to identify the location of Earth s features, and data associated to geographic locations.
The Central Command official, who spoke on the condition that he not be identified by name, did not provide details on tactics or geographic coordinates.

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