The design and performance characteristics of a prototype cloud physics laser nephelometer are described. The instrument measures radiation scattered from individual cloud droplets, determining droplet concentrations from scattered light-pulse count rates and size distributions from pulse amplitudes.
H. H. Blau, Jr., M. L. Cohen, L B. Lapson, P. von Thüna, R. T. Ryan, and D. Watson, "A Prototype Cloud Physics Laser Nephelometer," Appl. Opt. 9, 1798-1803 (1970)