Likely to send a signal to space from there. It will be clean of any other interefering earth communication signals. The place could be one of possible bases for the upcoming refugees ,but as the main base for the main autobots I doubt it.

 

Actually, it makes a pretty big difference - the atmosphere and pollution filter incoming/outgoing space signals extremely well. That's why telescopes/radiotelescopes have to be built at very high elevations or put into orbit. Only a few kilometers thick, but full of stuff that absorbs various frequencies.

Not to mention all the terrestrial transmissions.

Ra88> The script speaks of no evolution - that's how they actually know extreme temperatures are gonna harm the 'cons near the end, even.

 

maybe the ark will appear in the second movie along with the refugees as a base or we will see something similar to the rid base (hidden within a multistory car park) as their main base

 

I suppose that makes sense. I guess I was thinking that Prime would have some sort of uber-transmitter that stuff like that wouldn't affect. You would think super advanced robots would also have super advanced transmission technology.