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Title:Lidar Observations of Mountain Waves During Bora Episodes
Authors:Wang, Longlong (Author)
Bervida, Marija (Author)
Stanič, Samo (Author)
Bergant, Klemen (Author)
Eichinger, William (Author)
Strajnar, Benedikt (Author)
Files:This document has no files. This document may have a phisical copy in the library of the organization, check the status via COBISS. Link is opened in a new window
Language:English
Work type:Not categorized (r6)
Tipology:1.08 - Published Scientific Conference Contribution
Organization:UNG - University of Nova Gorica
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.
Keywords:Bora, mountain waves, lidar observations
Year of publishing:2020
Number of pages:4
Numbering:237
COBISS_ID:21975043 Link is opened in a new window
URN:URN:SI:UNG:REP:5AG5RG2X
DOI:https://doi.org/10.1051/epjconf/202023706007 Link is opened in a new window
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 proceedings

Title:The 29th International Laser Radar Conference (ILRC 29)

Record is a part of a journal

Title:EPJ Web of Conferences
Publisher:EDP Sciences
ISSN:eISSN: 2100-014X
Year of publishing:2020

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Funding Programme:Raziskovalni projekti - temeljni
Project no.:P1-0385
Name:Daljinsko zaznavanje atmosferskih lastnosti
Acronym:
Project ID:info:eu-repo/grantAgreement/ARRS/Raziskovalni%20projekti%20-%20temeljni/P1-0385

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