Abstract

In urban Seattle, simultaneous measurements were made of backscatter using a ruby laser radar and of the scattering portion of extinction using an integrating nephelometer. Both instruments were calibrated allowing separation of molecular and aerosol contributions to the two scatter coefficients. During the period of the experiment, backscatter and the scattering portion of extinction were well correlated at relative humidities less than 70%. For the aerosol, the ratio of backscatter to the scattering portion of extinction was only one-third that predicted from spherical particle Mie calculations for a power law size distribution aerosol.

© 1972 Optical Society of America

Measurement of the lidar ratio for atmospheric aerosols with a 180° backscatter nephelometer

Sarah J. Doherty, Theodore L. Anderson, and Robert J. Charlson
Appl. Opt. 38(9) 1823-1832 (1999)

Laboratory Measurements of Light Scattering by Simulated Atmospheric Aerosols

R. G. Quiney and A. I. Carswell
Appl. Opt. 11(7) 1611-1618 (1972)

Mie-Theory Computations of Lidar and Nephelometric Scattering Parameters for Power Law Aerosols

Halstead Harrison, Jack Herbert, and Alan P. Waggoner
Appl. Opt. 11(12) 2880-2885 (1972)

Single-Particle Light–Scattering Measurement: Photochemical Aerosols and Atmospheric Particulates

David T. Phillips and Philip J. Wyatt
Appl. Opt. 11(9) 2082-2087 (1972)

High spectral resolution lidar to measure optical scattering properties of atmospheric aerosols. 2: Calibration and data analysis

J. T. Sroga, E. W. Eloranta, S. T. Shipley, F. L. Roesler, and P. J. Tryon
Appl. Opt. 22(23) 3725-3732 (1983)