Radar

Radar domes used geodesic domes construction to withstand the high winds and snow buildup found in high Arctic landscapes.

Geodesics Dome used for house radar and electronics equipment

In Point Lay, Alaska, the main AN/FPS-19 search radar is in the dome, flanked by two AN/FRC-45 lateral communications dishes (or AN/FRC-102, depending on the date). To the left are the much larger southbound AN/FRC-101 communications dishes. Not visible is the AN/FPS-23 "gap filler" Doppler antenna. 

The DEW Line was upgraded with fifteen new AN/FPS-117 phased-array radars between 1985 and 1994, and re-named the North Warning System.

Inside a Geodesic radar dome