Aerodynamic parameters of windbreak based on its optical porosity

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F12%3A00193339" target="_blank" >RIV/62156489:43210/12:00193339 - isvavai.cz</a>

Alternative codes found

RIV/00027049:_____/12:#0000564

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Aerodynamic parameters of windbreak based on its optical porosity

Original language description

The paper summarizes the results of wind velocity measurement in different distances from windbreak in combination with optical porosity (OP) determination in different periods. Experimental data were obtained by direct measurement of wind speed and OP analyses of images of four windbreaks in Southern Moravia (part of Czech Republic). Wind speed at 2 m above the soil surface in a defined distance from windbreak had been measured since 2006. Thirty images of different phenological stages of selected windbreaks from 2006 to 2010 were analyzed. Windward or leeward images were converted into black and white spectrum. All available measurements were used for a map creation. The highest values of OP (up to 50%) are achieved in non-vegetation period. Due to the high OP variability in height of terminal tree branches "OP reduced" was also assessed (just squares to 2/3 height of windbreaks were evaluated). The wind speed reduction on the leeward side relatively strongly correlated with OP value

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DG - Atmospheric sciences, meteorology

OECD FORD branch

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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

Name of the periodical

Contributions to Geophysics and Geodesy

ISSN

1335-2806

e-ISSN

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Volume of the periodical

42

Issue of the periodical within the volume

3

Country of publishing house

SK - SLOVAKIA

Number of pages

14

Pages from-to

213-226

UT code for WoS article

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EID of the result in the Scopus database

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