Is there a wavelength of light at which you could see air moving? I was thinking it would be amazing to put on a pair of goggles which enables you to see how air moves around across a landscape, while you stand at the top of a hill - without clouds or fog to give it away.
Maybe radar or lidar can do that? Or an extremely sensitive IR optical sensor, which picks up minute differences in temperature / pressure?
Even more amazingly, could one see areas where air pressure is at a specific value? Something like putting goggles on, and tuning them to a specific parameter value, then the air on some area on the landscape becomes opaque (therefore visible) to you, and everything else remains transparent (invisible)?