Simulation of wind field influenced by windbreaks

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F12%3A00190300" target="_blank" >RIV/62156489:43210/12:00190300 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Simulation of wind field influenced by windbreaks
Original language description
The paper summarizes the results of wind speed measuring at different distances from selected windbreak in combination with optical porisity (OP) determination in different periods. Wind speed at 2 m above the soil surface had been measured since 2006. Thirty images of different phenological stages from 2006 to 2010 were analyzed. The highest correlation was found out when use the wind speed measurement at 50 m on the leeward side. The dependence decreases with increasing distance. Full foliage reducesa wind speed about 60% at 50 m and about 30% at 150 m on the leeward. These values for non-foliaged windbreaks decrease on 80 and 90%. Maximum distance of windbreak effect on wind speed reduction was found out by the extrapolation of the curves constructed using the regression equation of wind speed reduction in dependence on OP and different distances from the windbreak. Regardless OP the reduction effect disappears at a distance of 250 m. The quietest zone of evaluated windbreak with a
Czech name
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Czech description
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Project
<a href="/en/project/QH82099" target="_blank" >QH82099: Criteria of wind erosion expansion on heavy-textured soils and possibilities of its limitation with biotechnological control measurements.</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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