The automated multiwavelength Raman polarization and water-vapor lidar Polly<sup>XT</sup>: the neXT generation
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Published:2016-04-25
Issue:4
Volume:9
Page:1767-1784
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ISSN:1867-8548
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Container-title:Atmospheric Measurement Techniques
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language:en
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Short-container-title:Atmos. Meas. Tech.
Author:
Engelmann RonnyORCID, Kanitz Thomas, Baars HolgerORCID, Heese BirgitORCID, Althausen Dietrich, Skupin Annett, Wandinger Ulla, Komppula Mika, Stachlewska Iwona S.ORCID, Amiridis VassilisORCID, Marinou EleniORCID, Mattis Ina, Linné Holger, Ansmann Albert
Abstract
Abstract. The atmospheric science community demands autonomous and quality-assured vertically resolved measurements of aerosol and cloud properties. For this purpose, a portable lidar called Polly was developed at TROPOS in 2003. The lidar system was continuously improved with gained experience from the EARLINET community, involvement in worldwide field campaigns, and international institute collaborations within the last 10 years. Here we present recent changes of the setup of the portable multiwavelength Raman and polarization lidar PollyXT and discuss the improved capabilities of the system by means of a case study. The latest system developments include an additional near-range receiver unit for Raman measurements of the backscatter and extinction coefficient down to 120 m above ground, a water-vapor channel, and channels for simultaneous measurements of the particle linear depolarization ratio at 355 and 532 nm. Quality improvements were achieved by systematically following the EARLINET guidelines and the international PollyNET quality assurance developments. A modified ship radar ensures measurements in agreement with air-traffic safety regulations and allows for 24∕7 monitoring of the atmospheric state with PollyXT.
Publisher
Copernicus GmbH
Subject
Atmospheric Science
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