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Meritve in izračun izhlapevanja : diplomska naloga
Plesničar, Leja (Author), Šraj, Mojca (Mentor) More about this mentor... This link opens in a new window, Brilly, Mitja (Co-mentor), Žagar, Dušan (Thesis defence commission member)

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Abstract
V diplomski nalogi so predstavljene tri izbrane metode merjenja in izračuna evapotranspiracije na raziskovalni ploskvi na Hajdrihovi 28 in sicer merjenje z evaporacijsko posodo A ter izračun potencialne evapotranspiracije z dvema empiričnima enačbama: FAO Penman-Monteithovo enačbo in Thornthwaitovo enačbo. Dobljene rezultate vseh treh metod smo med seboj primerjali, izračunane vrednosti po FAO Penman-Monteithovi enačbi pa smo primerjali tudi z izračuni na ARSO-vi meteorološki postaji Ljubljana-Bežigrad. Rezultati so pokazali, da so med metodami precejšnje razlike. Najmanjše vrednosti smo dobili z meritvami z evaporacijsko posodo, nekoliko višje po enostavni Thornthwaitovi enačbi, najvišje pa po FAO Penman-Monteithovi enačbi. Analiza vplivnih dejavnikov je pokazala, da je na raziskovalni ploskvi najvplivnejši dejavnik na evapotranspiracijo sončno sevanje, sledi mu relativna vlažnost, nekoliko manjši vpliv pa imata temperatura in veter.

Language:Slovenian
Keywords:gradbeništvo, diplomska naloga, UNI, VOI, izhlapevanje, evapotranspiracija, FAO Penman-Monteith, Thornthwait, evaporimeter "A"
Work type:Bachelor thesis/paper (mb11)
Tipology:2.11 - Undergraduate Thesis
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2015
Publisher:[L. Plesničar]
Number of pages:XII, 43 str.
Place:Ljubljana
UDC:551.573:556.13(497.4)(043.2)
COBISS.SI-ID:7077729 Link is opened in a new window
Views:1121
Downloads:289
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Secondary language

Language:English
Title:Measurement and calculation of evaporation
Abstract:
The thesis presents three selected methods of measurement and calculation of the evapotranspiration on research plot at Hajdrihova 28 in Ljubljana. First method is measurement by evaporation pan type A and the other two methods are empirical equations for potential evapotranspiration calculation: FAO Penman-Monteith equation and Thornthwait equation. The results obtained for all three methods are compared with each other. Calculated results according to the FAO Penman-Monteith equation were compared also to those from Slovenian Environment Agency meteorological station Ljubljana-Bežigrad. The results showed considerable differences between methods. The lowest values were obtained with the measurement by evaporation station type A, slightly higher values were calculated by simple Thornthwait equation and the highest by FAO Penman-Monteith equation. Analysis of the influential factors showed that on the research plot the most influential factor is solar radiation, followed by relative humidity. Lower impact is shown by air temperature and wind speed.

Keywords:graduation thesis, civil engineering, evaporation, evapotranspiration, FAO Penman-Monteith, Thornthwait, evaporation pan type "A"

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