Surveying (Merriam-Webster dictionary)
“A branch of applied mathematics that is concerned with determining the area of any portion of the earth's surface, the lengths and directions of the bounding lines, and the contour of the surface and with accurately delineating the whole on paper.”
The Global Positioning System, usually called GPS, is the only fully functional satellite navigation system. A constellation of more than two dozen GPS satellites broadcasts precise timing signals by radio, allowing any GPS receiver to accurately determine its location (longitude, latitude, and altitude) in any weather, day or night, anywhere on Earth.
GPS has become a vital global utility, indispensable for modern navigation on land, sea, and air around the world, as well as an important tool for map-making and land surveying.
Land surveyors to locate boundaries and physical structures use precise GPS receivers.
See also...
a) As-Built Surveys
b) Boundry Surveys
c) Construction Stakeout Surveys
d) Topographic Surveys
e) Building Interior Surveys
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