morning glory
Amazing! I hope that hang glider pilot confined his aerobatics to the leading edge!
Its clearly different from wave flying as found in the UK; these useful phenomena are marked by lenticular clouds that remain stationary over a ground point (at least until the upper wind shifts). Caused by a smooth flow of air over an upwind mountain range, gliders soar the leading edge much as one soars a ridge, and avoid the rotor that forms inside, and at the rear. Smooth and continuous lift, from one set of dinner plates in the sky to the next set upwind can lead to ascents without power up to 38,000 in the UK and 48,000 in the US - can anyone tell me if there is wave in Europe?
I'm pretty sure you can find wave behind the Andes.