20.500.12556/RUNG-4765-4a50ed44-5a3f-fb8c-dd56-9b58a9d8895e
Near-Ground Profile of Bora Wind Speed at Razdrto, Slovenia
Southwest Slovenia is a region well-known for frequent episodes of strong and gusty Bora wind, which may damage structures, affect traffic, and poses threats to human safety in general. With the increased availability of computational power, the interest in high resolution modeling of Bora on local scales is growing. To model it adequately, the flow characteristics of Bora should be experimentally investigated and parameterized. This study presents the analysis of wind speed vertical profiles at Razdrto, Slovenia, a location strongly exposed to Bora during six Bora episodes of different duration, appearing between April 2010 and May 2011. The empirical power law and the logarithmic law for Bora wind, commonly used for the description of neutrally stratified atmosphere, were evaluated for 10-min averaged wind speed data measured at four different heights. Power law and logarithmic law wind speed profiles, which are commonly used in high resolution computational models, were found to approximate well the measured data. The obtained power law coefficient and logarithmic law parameters, which are for modeling purposes commonly taken to be constant for a specific site, were found to vary significantly between different Bora episodes, most notably due to different wind direction over complex terrain. To increase modeling precision, the effects of local topography on wind profile parameters needs to be experimentally assessed and implemented.
Bora wind
logarithmic law
power law
roughness length
wind profile
true
true
false
Angleški jezik
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Delo ni kategorizirano
2019-10-04 08:09:46
2019-10-04 08:27:17
2023-06-09 03:34:44
0000-00-00 00:00:00
2019
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0
13
601
10
2019
0000-00-00
Zaloznikova
NiDoloceno
NiDoloceno
0000-00-00
0000-00-00
0000-00-00
5458171
URN:SI:UNG:REP:LEX3RGHR
atmosphere-10-00601.pdf
atmosphere-10-00601.pdf
1
C7A041F123499DBEEED8B0AAE49E3658
9ab7d393752f023fc7b33b194c9b406b30c6e374811acbd990a2562a8c17f803
63642e8b-05cf-11ee-9c48-5ef991fed68f
https://repozitorij.ung.si/Dokument.php?lang=slv&id=18707
Univerza v Novi Gorici
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