ATMOSPHERIC SCINTILLATION OF OPTICAL AND INFRARED WAVES: A LABORATORY SIMULATION

Authors
  1. Bissonnette, L.R.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
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 water tank. The turbulent index of refraction has a statistical structure similar to that of the atmosphere, in particular, Kolmogorov's inertial subrange model is verified. The measured saturation and supersaturation of the irradiance variance agree very well with theory and atmospheric data. The simulation results are properly scaled by the first-order expression for the log-amplitude variance, and the saturation distance is typically reduced by a factor of 300-400.
Date of publication
01 Jan 1977
Number of Pages
10
Reprinted from
Applied Optics, vol 16, no 8, 1977, p 2242-2251
DSTKIM No
77-04904
CANDIS No
101574
Format(s):
Hardcopy

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