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

By Ronny Engelmann, T. Kanitz, Holger Baars, Birgit Heese, Dietrich Althausen, A. Skupin, Ulla Wandinger, Mika Komppula, I. Stachlewska, V. Amiridis and 4 more. 2016

334 citations recorded by the source corpus.

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.

Subfields: Atmospheric Science, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/3025c8cb5acd4f34be4af1eec2f7f013cc7b8a2e

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Citations in the corpus

Depolarization and lidar ratios at 355, 532, and 1064 nm and microphysical properties of aged tropospheric and stratospheric Canadian wildfire smoke (2018, background): “A single-wavelength 532 nm Polly (Portable lidar system) (Althausen et al., 2009; Engelmann et al., 2016; Baars et al., 2016) measured the total, co-, and cross-polarized elastic backscatter signals at 532 nm, the rotational Raman signals around 532 nm, and the vibrational-rotational Raman signal at”
An overview of the first decade of Polly NET : an emerging network of automated Raman-polarization lidars for continuous aerosol profiling (2016, methodology): “For high quality in the depolarization measurements, a 190◦-calibration is automatically performed for the TROPOS, FMI, and UW systems three times a day since 2012 (for system details and overview see Engelmann et al., 2016, and Table 1).”