A multiwavelength lidar operated in Sodankyla, Finland, during the European Arctic Stratospheric Ozone Experiment (December 1991–March 1992). It produced vertical profiles of stratospheric aerosols at four wavelengths. The determination of aerosol mean size distribution has been performed by use of extinction/backscattering ratios as obtained from lidar data processing at 355, 352, and 750 nm. Log-normal distributions of sulfuric particles with mode radius of rm = 0.12–0.25 μm and corresponding widths of s = 2–1.6 have been retrieved as best fits of experimental data, in good agreement with in situ measurements. A successful attempt to derive bimodal log-normal distributions is also described, together with the experimental and theoretical problems involved.
© 1994 Optical Society of America
Original Manuscript: June 2, 1993
Revised Manuscript: January 3, 1994
Published: August 20, 1994
Massimo Del Guasta, Marco Morandi, L. Stefanutti, B. Stein, and J. P. Wolf, "Derivation of Mount Pinatubo stratospheric aerosol mean size distribution by means of a multiwavelength lidar," Appl. Opt. 33, 5690-5697 (1994)