摘要: Accurate simulation, on a laboratory scale, of atmospherically induced scintillation phenomena is achieved by creating an unstable vertical temperature gradient in a 1.5-m long, 40-cm wide and 60-cm deep tank filled with water. Th... 展开 Accurate simulation, on a laboratory scale, of atmospherically induced scintillation phenomena is achieved by creating an unstable vertical temperature gradient in a 1.5-m long, 40-cm wide and 60-cm deep tank filled with water. The turbulent index of refraction has a statistical structure similar to that of the atmosphere; in particular, the Kolmogoro's inertial subrange model is verified. The turbulent irradiance data in the simulation medium have the same features respecting power spectrum, saturation and supersaturation and obey the same theoretical scaling law as in the atmosphere. Typically, the characteristic propagation distances are reduced by a factor of 300 to 400. (Author) 收起