IAG System of Geodesy and Mapping

The IAG (International Association of Geodesy) System of Geodesy and Mapping is an organized framework that coordinates global efforts to measure and understand Earth's shape, gravity, and surface. It creates accurate reference points and systems so maps and positioning (like GPS) are consistent worldwide. This system involves precise measurements, standards, and methods for defining locations, ensuring that geographic information aligns accurately across different countries and technologies. Essentially, it provides the scientific foundation for accurate mapping, navigation, and Earth observations, facilitating reliable spatial data for science, industry, and everyday use.