Derivation of Mount Pinatubo stratospheric aerosol mean size distribution by means of a multiwavelength lidar
Year: 1994
Authors: Del Guasta M., Morandi M., Stefanutti L., Stein B., Wolf J.P.
Autors Affiliation: Istituto di Ricerca Sulle Onde Elettromagnetiche, Consiglio Nazionale delle Ricerche, Florence, Italy; Freie Universität, Arnimallee 14, Berlin, D-14195, Germany
Abstract: 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. Lognormal distributions of sulfuric particles with mode radius of rm = 0.12-0.25,um 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. All rights reserved.
Journal/Review: APPLIED OPTICS
Volume: 33 (24) Pages from: 5690 to: 5697
KeyWords: Aerosols; Earth atmosphere; Particle size analysis, European Arctic Stratosphere Ozone Experiment; Mie scattering, Optical radar, lidar; log-normal distribution; multiwavelength lidar; stratosphere; sulfuric acid; volcanic eruptions, Finland, Sodankyla; Philippines, Mount PinatuboDOI: 10.1364/AO.33.005690