Range = Distance from radar site to echo centroid Azimuth = Horizontal angular distance from true north measured clockwise from true north (east = 90 degrees, south = 180 degrees, west = 270 degrees, north = 0 degrees) Elevation angle = Number of degrees the beam is transmitted above the horizon. 0 degrees is parallel to horizon while 90 degrees is straight up Echo height = Vertical height above the surface to the target at which the radar beam intersects the target |