Modern Geodetic Datum

A modern geodetic datum is a framework used to locate points on Earth's surface accurately. It defines the shape of the Earth (or a specific area), a reference point, and coordinate system so that GPS and mapping technologies can consistently identify locations. Think of it as a detailed, standardized map grid built with precise measurements, ensuring that positions on Earth’s surface align correctly across different maps and systems. Modern datums improve accuracy over older versions by incorporating satellite data, helping in navigation, surveying, and geographic information systems worldwide.