| Title: | Lidar Observations of Mountain Waves During Bora Episodes |
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| Authors: | Wang, Longlong (Author)
Bervida, Marija (Author)
Stanič, Samo (Author)
Bergant, Klemen (Author)
Eichinger, William (Author)
Strajnar, Benedikt (Author) |
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| Files: | This document has no files. This document may have a phisical copy in the library of the organization, check the status via COBISS.  |
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| Language: | English |
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| Work type: | Not categorized (r6) |
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| Tipology: | 1.08 - Published Scientific Conference Contribution |
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| Organization: | UNG - University of Nova Gorica |
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| Abstract: | Airflows over mountain barriers in the Alpine region may give rise to strong, gusty downslope winds, called Bora. Oscillations, caused by the flow over an orographic barrier, lead to formation of mountain waves. These waves can only rarely be observed visually and can, in general, not be reliably reproduced by numerical models. Using aerosols as tracers for airmass motion, mountain waves were experimentally observed during Bora outbreak in the Vipava valley, Slovenia, on 24-25 January 2019 by two lidar systems: a vertical scanning lidar positioned just below the peak of the lee side of the mountain range and a fixed direction lidar at valley floor, which were set up to retrieve two-dimensional structure of the airflow over the orographic barrier into the valley. Based on the lidar data, we determined the thickness of airmass layer exhibiting downslope motion, observed hydraulic jump phenomena that gave rise to mountain waves and characterized their properties. |
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| Keywords: | Bora, mountain waves, lidar observations |
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| Year of publishing: | 2020 |
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| Number of pages: | 4 |
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| Numbering: | 237 |
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| COBISS_ID: | 21975043 |
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| URN: | URN:SI:UNG:REP:5AG5RG2X |
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| DOI: | https://doi.org/10.1051/epjconf/202023706007 |
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| License: | 
This work is available under this license: Creative Commons Attribution 4.0 International |
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| Views: | 2047 |
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| Downloads: | 0 |
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