I'm pretty ignorant of the tech, but the big ones look a bit large to be radar domes. In fact, the doppler radar dome referenced by NetStorm is one
of the largest radar domes I've ever seen. And again I am fairly uneducated on the matter, but I don't think radar sites can be located that close
to eachother, especially not that close at the same height.
Origianlly developed as an early warning system to detect Soviet bombers and ICBMs, the BMEWS used radoms like these, called golf-balls, beleive it or
not, to house radar dishes.
en.wikipedia.org...