WGS84 Ellipsoid

The WGS84 (World Geodetic System 1984) ellipsoid is a mathematically defined shape that models Earth’s surface for navigation and mapping. Imagine wrapping a slightly flattened sphere around the planet, accounting for Earth’s equatorial bulge and polar flattening. This standardized model helps GPS devices and mapping systems precisely determine locations worldwide. WGS84 defines the planet’s size, shape, and coordinate system, enabling consistent, accurate positioning across global applications. It’s the foundation for modern navigation, guiding everything from smartphones to aircraft.