A systematic program of observing atmospheric backscatter β profiles from 4 to 16-km above sea level is described. Initial monthly averages indicating a lognormal distribution are presented. Cirrus prevalence, volcanic layers in the stratosphere, diurnal effects, convection, calibration, and absorption effects are discussed as well.
M. J. Post, F. F. Hall, R. A. Richter, and T. R. Lawrence, "Aerosol backscattering profiles at λ = 10.6 μm," Appl. Opt. 21, 2442-2446 (1982)