Lidar Measurements of Atmosphere in AIOFM

概要

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Some lidar facilities were built for measurements of the atmosphere at AIOFM, including L625, L300, and AML-1 lidar systems. L625 lidar is used for multi-purpose: Mie-scattering method with YAG second and third harmonic wavelengths of 532nm and 355nm for stratospheric aerosol, UV-DIAL method with wavelength-pair of 308nm (XeCl eximer laser) and 355nm(YAG third harmonic) for ozone in stratosphereand with another wavelength-pair of 308nm (XeCl excimer laser) and 289nm (D2 Raman output pumped by YAG-266nm) for ozone in troposphere, Raman scattering method with YAG third harmonic wavelength of 355nm for water vapor in lower troposphere, and Rayleigh scattering method with YAG second and thirdharmonic wavelengths of 532nm and 355nm for temperature in mid- and upper stratosphere. A large number ofdata have been obtained by L625 lidar nlatform for the above parameters. These measurement data reveal their variation characteristics at Hefei (31.9°N, 111.7.16°E). L300 lidar we developed is a dual-wavelength system for measurements of aerosol in troDOSohere. A large number of measurement data reveal the characteristics of tropospheric aerosol extinction profiles, including Asian dust enisode. AML-1 mobile lidar, developed recently in AIOFM, is used for measuring air pollutants: SO_2, NO_2, O_3, and aerosol inmixed layer.
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