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Article

Investigation of Aerosol Properties and Structures in Two Representative Meteorological Situations over the Vipava Valley Using Polarization Raman LiDAR

1
Center for Atmospheric Research, University of Nova Gorica, 5270 Nova Gorica, Slovenia
2
Department of Civil and Environmental Engineering, University of Iowa, Iowa City, IA 52242, USA
3
Jožef Stefan Institute, 1000 Ljubljana, Slovenia
4
Aerosol d.o.o., 1000 Ljubljana, Slovenia
*
Author to whom correspondence should be addressed.
Atmosphere 2019, 10(3), 128; https://doi.org/10.3390/atmos10030128
Received: 30 January 2019 / Revised: 1 March 2019 / Accepted: 5 March 2019 / Published: 8 March 2019
(This article belongs to the Special Issue Remote Sensing of Aerosols)
Vipava valley in Slovenia is a representative hot-spot for complex mixtures of different aerosol types of both anthropogenic and natural origin. Aerosol loading distributions and optical properties were investigated using a two-wavelength polarization Raman LiDAR, which provided extinction coefficient, backscatter coefficient, depolarization ratio, backscatter Ångström exponent and LiDAR ratio profiles. Two different representative meteorological situations were investigated to explore the possibility of identifying aerosol types present in the valley. In the first case, we investigated the effect of strong downslope (Bora) wind on aerosol structures and characteristics. In addition to observing Kelvin–Helmholtz instability above the valley, at the height of the adjacent mountain ridge, we found new evidence for Bora-induced processes which inject soil dust aerosols into the free troposphere up to twice the height of the planetary boundary layer (PBL). In the second case, we investigated aerosol properties and distributions in stable weather conditions. From the observed stratified vertical aerosol structure and specific optical properties of different layers we identified predominant aerosol types in these layers. View Full-Text
Keywords: aerosol structures; aerosol characterization; polarization Raman LiDAR; Vipava valley aerosol structures; aerosol characterization; polarization Raman LiDAR; Vipava valley
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MDPI and ACS Style

Wang, L.; Stanič, S.; Eichinger, W.; Močnik, G.; Drinovec, L.; Gregorič, A. Investigation of Aerosol Properties and Structures in Two Representative Meteorological Situations over the Vipava Valley Using Polarization Raman LiDAR. Atmosphere 2019, 10, 128. https://doi.org/10.3390/atmos10030128

AMA Style

Wang L, Stanič S, Eichinger W, Močnik G, Drinovec L, Gregorič A. Investigation of Aerosol Properties and Structures in Two Representative Meteorological Situations over the Vipava Valley Using Polarization Raman LiDAR. Atmosphere. 2019; 10(3):128. https://doi.org/10.3390/atmos10030128

Chicago/Turabian Style

Wang, Longlong, Samo Stanič, William Eichinger, Griša Močnik, Luka Drinovec, and Asta Gregorič. 2019. "Investigation of Aerosol Properties and Structures in Two Representative Meteorological Situations over the Vipava Valley Using Polarization Raman LiDAR" Atmosphere 10, no. 3: 128. https://doi.org/10.3390/atmos10030128

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