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Title:Investigation of Aerosol Properties and Structures in Two Representative Meteorological Situations over the Vipava Valley Using Polarization Raman LiDAR
Authors:Wang, Longlong (Author)
Stanič, Samo (Author)
Eichinger, William (Author)
Močnik, Griša (Author)
Drinovec, Luka (Author)
Gregorič, Asta (Author)
Files:.pdf atmosphere-10-00128.pdf (3,11 MB)
 
Language:English
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract: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.
Keywords:aerosol structures, aerosol characterization, polarization Raman LiDAR, Vipava valley
Year of publishing:2019
Number of pages:13
Numbering:10, 3
COBISS_ID:5336571 Link is opened in a new window
URN:URN:SI:UNG:REP:22JWDTB8
License:CC BY 4.0
This work is available under this license: Creative Commons Attribution 4.0 International
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Record is a part of a journal

Title:Atmosphere
Publisher:MDPI
ISSN:2073-4433
Year of publishing:2019

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