From Dave G3YMC But maybe the scattering centers are not only the rocks themselves: Bob Brown, NM7M, had a fascinating article in QST 12/99 "Bubbles in the Ozone Layer", suggesting that turbulent air
Markus' idea is most interesting. I hope there will be some way to test it. I'm less impressed with the QST article, though. From what I read there, I cannot find any new sunrise phenomenon that does