Key Activities

National Geodetic Datum

In determining national coordinate reference system, NGII provides high quality information on geodetic surveying

Korean Geodetic Datum

Horizontal Datum: Establishing the national geodetic horizontal origin point in accordance with the World Geodetic Reference System (ITRF2000 & GRS80) and installing space geodetic control points, CORS, unified control points and triangulation points

Vertical Datum: Determining the height of the national vertical origin point(Inha Technical College) as 26.6871 meters based on the mean sea level of Incheon Bay and installing unified control points and bench marks