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Page count: 14

Overwater measurements have been made of the turbulence structure constant for index of refraction, C sub n squared, by means of scintillation for comparison with predictions of C sub n squared based on meteorological measurements carried out at the same time, during the 'Monterey Aerosol Generation and Transport' (MAGAT-1980) experiment. Scintillation was chosen as the optical measurement because it gives heaviest weight to points on the optical path near the center of the path, minimizing the shoreline effects. The overwater path length was 13.3 km. The light source was a 10.6 micrometer CO2 laser. This combination of range and wavelength was adequate to avoid saturation effects.