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Author: search.filters.author.Cheevasuvit, FusakSubject: search.filters.subject.Aerosol

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    Atmospheric boundary layer observation by ground-based lidar at KMITL, Thailand (13° N, 100° E)
    (2001-01-01)
    Lerkvaranyu, Somkiat
    ;
    Dejhan, Kobchai
    ;
    Cheevasuvit, Fusak
    ;
    Itabe, Toshikasu
    ;
    Mizutani, Kohei
    Tropospheric aerosols effects on climate in directly through various cloud formation, the lidar has been used to study the composition of many particles mixing in the atmosphere including to study the aerosol and cloud. Currently, it has many types of lidar systems depending on the purpose of measurements. In this report, the ground-based lidar system was established at King Mongkut's Institute of Technology Ladkrabang (KMITL), THAILAND to study and measure the aerosol in boundary layer and cirrus clouds in the tropopause region. The aerosol measurement is in the form of scattering ratio whereas the signal depolarization has been applied to identify layers of cirrus clouds. The lidar system consists of laser source (Nd:YAG) with second harmonic wavelength, 28 cm Schmidt-Cassegrain telescope, photomultiplier tube (PMT) and data acquisition system.