How Do We Determine Global Positions on the Earth? Using Geographic Coordinates Vocabulary Terrestrial Coordinate: Coordinates based on Earths system of latitude and longitude. Equator: An imaginary line that circles the globe half way between the north and south poles. Latitude: The angular distance north or south of the Equator. Vocabulary Prime Meridian: An imaginary line north-south line through Greenwich England from which longitude is measured. Longitude: The angular distance east or west of the Prime Meridian. Hemisphere: Half of the Earth (north, south, east, west). How do we find a locations address? 1.Find the latitude (north/south) first. 2.Find the longitude (east/west) next. 3.Write it like a coordinate on a graph: For Example: 45N,30E or 50S,20E Locate the Coordinates A = B = C= D= E= F= G= I= J= K= L= M=