| Title: | Investigation of Aerosol Properties and Structures in Two Representative Meteorological Situations over the Vipava Valley Using Polarization Raman LiDAR |
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| Authors: | ID Wang, Longlong, University of Nova Gorica (Author)
ID Stanič, Samo, University of Nova Gorica (Author)
ID Eichinger, William, University of Iowa (Author)
ID Močnik, Griša, Jožef Stefan Institute (Author)
ID Drinovec, Luka, Jožef Stefan Institute (Author)
ID Gregorič, Asta, University of Nova Gorica (Author) |
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| Files: |  atmosphere-10-00128.pdf (3,11 MB)
MD5: C266F2D3A224DE874376EC6E66EB2C9B
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| Language: | English |
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| Work type: | Not categorized |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | UNG - University of Nova Gorica
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| 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. |
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| Keywords: | aerosol structures, aerosol characterization, polarization Raman LiDAR, Vipava valley |
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| Publication version: | Version of Record |
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| Year of publishing: | 2019 |
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| Number of pages: | 13 |
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| Numbering: | 3, 10 |
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| PID: | 20.500.12556/RUNG-4420-3aae6615-d27d-c593-ac0b-9b2b6eff8202  |
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| COBISS.SI-ID: | 5336571 |
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| NUK URN: | URN:SI:UNG:REP:22JWDTB8 |
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| Publication date in RUNG: | 08.03.2019 |
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| Views: | 3880 |
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| Downloads: | 118 |
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