A geodetic network is a system of interconnected points on the Earth's surface used for precise measurements of location, elevation, and distance. These points, known as geodetic markers, are established using advanced techniques like GPS and triangulation. The data collected helps in mapping, surveying, and understanding the Earth's shape and size. Geodetic networks are essential for various applications, including civil engineering, navigation, and environmental monitoring. They provide a reliable framework for measuring changes in the Earth's surface, such as tectonic movements and sea-level rise, contributing to scientific research and infrastructure development.