Degradation Of Optical Transmission In The Atmospheric Marine Boundary Layer

E. C. Crittenden Jr.; A. W. Cooper; E. A. Milne; G. W. Rodeback; R. L. Armstead; S. H. Kalmbach; G. E. Schacher; C. W. Fairall

doi:10.1117/12.958283

26 March 1980 Degradation Of Optical Transmission In The Atmospheric Marine Boundary Layer

E. C. Crittenden Jr., A. W. Cooper, E. A. Milne, G. W. Rodeback, R. L. Armstead, S. H. Kalmbach, G. E. Schacher, C. W. Fairall

Author Affiliations +

Proceedings Volume 0208, Ocean Optics VI; (1980) https://doi.org/10.1117/12.958283
Event: Ocean Optics VI, 1979, Monterey, United States

Abstract

Optical transmission through the atmosphere is degraded both by the turbulence-induced fluctuation of the optical index, described by CnÂ², the turbulence structure constant for index, and also by extinction due to molecular absorption and scattering by fog or aerosols. Various techniques for direct optical measurement of CnÂ² and extinction are compared and the results shown to depend differently on the distribution of turbulence along the path. Tech- niques of field optical measurements of CnÂ² and extinction coefficient developed at NPS are presented. Results are compared with thermal and humidity fluctuations, and Knollenberg particle size spectra.

Citation Download Citation

E. C. Crittenden Jr., A. W. Cooper, E. A. Milne, G. W. Rodeback, R. L. Armstead, S. H. Kalmbach, G. E. Schacher, and C. W. Fairall "Degradation Of Optical Transmission In The Atmospheric Marine Boundary Layer", Proc. SPIE 0208, Ocean Optics VI, (26 March 1980); https://doi.org/10.1117/12.958283

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