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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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Volume 9, issue 4 | Copyright
Atmos. Meas. Tech., 9, 1767-1784, 2016
https://doi.org/10.5194/amt-9-1767-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 25 Apr 2016

Research article | 25 Apr 2016

The automated multiwavelength Raman polarization and water-vapor lidar PollyXT: the neXT generation

Ronny Engelmann1, Thomas Kanitz1, Holger Baars1, Birgit Heese1, Dietrich Althausen1, Annett Skupin1, Ulla Wandinger1, Mika Komppula2, Iwona S. Stachlewska3, Vassilis Amiridis4, Eleni Marinou4,5, Ina Mattis6, Holger Linné7, and Albert Ansmann1 Ronny Engelmann et al.
  • 1Leibniz Institute for Tropospheric Research (TROPOS), Leipzig, Germany
  • 2Finnish Meteorological Institute, Kuopio, Finland
  • 3University of Warsaw, Faculty of Physics, Institute of Geophysics, Warsaw, Poland
  • 4National Observatory of Athens, Institute for Astronomy, Astrophysics, Space Application and Remote Sensing, Athens, Greece
  • 5Aristotle University of Thessaloniki, Department of Physics, Laboratory of Atmospheric Physics, Thessaloniki, Greece
  • 6Deutscher Wetterdienst, Hohenpeißenberg Meteorological Observatory, Hohenpeißenberg, Germany
  • 7Max Planck Institute for Meteorology, Hamburg, Germany

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 120m above ground, a water-vapor channel, and channels for simultaneous measurements of the particle linear depolarization ratio at 355 and 532nm. 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.

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The atmospheric science community demands for 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. This lidar type was continuously improved with gained experience from EARLINET, worldwide field campaigns, and institute collaborations within the last 10 years. We present recent changes to the setup of our portable multiwavelength Raman and polarization lidar PollyXT.
The atmospheric science community demands for autonomous and quality-assured vertically resolved...
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