Why Do We Use Wgs 84?

Sarah Jenkins
Sarah Jenkins
• • 6 min read

Wgs84: Unifying a Global Ellipsoid Model with Gps the Radio Waves Transmitted by Gps Satellites and Trilateration Enable Extremely Precise Earth Measurements...

Why Do We Use Wgs 84?

WGS84: Unifying a Global Ellipsoid Model with GPS
The radio waves transmitted by GPS satellites and trilateration enable extremely precise Earth measurements across continents and oceans. Geodesists could create global ellipsoid models because of the enhancement of computing capabilities and GPS technology.

What is the purpose of WGS 84?

WGS 84 is the standard U.S. Department of Defense definition of a global reference system for geospatial information and is the reference system for the Global Positioning System (GPS). It is compatible with the International Terrestrial Reference System (ITRS).

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How accurate is WGS 84?

The accuracy of WGS84 (G2139) as realised using the broadcast ephemeris and ranging data is now typically 2-5 metres.

Sarah Jenkins

Sarah Jenkins

Senior Technology Editor & AI Specialist
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Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.