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        Portable Raman Lidar Polly(XT) for Automated Profiling of Aerosol Backscatter, Extinction, and Depolarization

        Author
        Althausen, Dietrich
        Engelmann, Ronny
        Baars, Holger
        Heese, Birgit
        Ansmann, Albert
        Mueller, D.
        Komppula, Mika
        Attention
        2299/11254
        Abstract
        Two versions of the portable aerosol Raman lidar system (Polly) are presented. First, the two-channel prototype is depicted. It has been developed for the independent and simultaneous determination of particle backscatter and extinction coefficient profiles at 532 nm. Second, the 3 | 2 Raman lidar Polly(XT) (3 | 2: three backscatter and two extinction coefficients), the second generation of Polly, is described. The extended capabilities of Polly(XT) are due to the simultaneous emission of light with three wavelengths, more laser power, a larger main receiver mirror, and seven receiver channels. These systems are completely remotely controlled and all measurements are performed automatically. The collected data are transferred to a home server via the Internet and are displayed on a Web page. This paper describes the details of the optical setup, the housekeeping of the systems, and the used data retrieval routines. A measurement example taken close to Manaus, Brazil, on 15 August 2008 shows the capabilities of Polly(XT).
        Publication date
        2009-11
        Published in
        Journal of Atmospheric and Oceanic Technology
        Published version
        https://doi.org/10.1175/2009JTECHA1304.1
        Other links
        http://hdl.handle.net/2299/11254
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