Physics
Scientific paper
Feb 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004spie.5235..497c&link_type=abstract
Remote Sensing of Clouds and the Atmosphere VIII. Edited by Schaefer, Klaus P.; Comeron, Adolfo; Carleer, Michel R.; Picard, Ric
Physics
Scientific paper
A multi-wavelength lidar system that can measure simultaneously spectral extinction coefficient and depolarization ratio has been developed and tested. Some results from lidar measurements aerosol extinction coefficient, lidar ratio, and depolarization ratio of aerosols are presented. Lidar transmit system generates 20 Hz laser pulses at 355nm, 532nm, and 1064nm with an Nd:YAG laser. Backscattered light from atmospheric aerosol particles is collected with three Cassegrain type telescopes. Signal detection unit has 7-channels consisting of two 532nm channels and one 1064nm channel for measuring the stratospheric aerosols, two 532nm channels for the tropospheric aerosols, and 387nm channel for Raman scattering measurements. Aerosol observation has been conducted since December 2002 at Kwangju (35°10`N, 126°53`), Korea. Raman channel permitted better determination of optical properties of continental aerosols. The profile of the depolarization ratio is determined at 532 nm and used to investigate particle shape.
Choi Sungchul
Kim Youngjoon
Noh Youngmin
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