Ground Control Points (GCP)

Ground Control Points (GCPs) are specific, easily identifiable locations on the ground with known geographic coordinates. They are used in mapping and surveying to ensure the accuracy of aerial images or satellite data. By referencing these points, professionals can align and correct images, creating a more precise representation of the Earth's surface. In essence, GCPs act like anchors that help geospatial experts verify that their maps and models reflect true locations, ensuring reliable results in various applications like urban planning, construction, and environmental monitoring.